./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 2463f96020283dc976a48e4624a0a64ed4b926874e2dafad9e507fb796d4e148 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 13:08:43,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 13:08:43,963 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 13:08:43,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 13:08:43,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 13:08:43,991 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 13:08:43,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 13:08:43,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 13:08:43,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 13:08:43,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 13:08:43,994 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 13:08:43,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 13:08:43,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 13:08:43,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 13:08:43,996 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 13:08:43,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 13:08:43,997 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 13:08:43,997 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 13:08:43,997 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 13:08:43,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 13:08:43,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 13:08:44,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 13:08:44,001 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 13:08:44,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 13:08:44,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 13:08:44,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 13:08:44,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 13:08:44,002 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 13:08:44,002 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 13:08:44,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 13:08:44,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 13:08:44,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 13:08:44,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 13:08:44,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 13:08:44,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 13:08:44,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 13:08:44,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 13:08:44,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 13:08:44,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 13:08:44,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 13:08:44,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 13:08:44,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 13:08:44,005 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2463f96020283dc976a48e4624a0a64ed4b926874e2dafad9e507fb796d4e148 [2024-10-11 13:08:44,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 13:08:44,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 13:08:44,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 13:08:44,230 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 13:08:44,231 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 13:08:44,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i [2024-10-11 13:08:45,624 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 13:08:45,789 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 13:08:45,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-66.i [2024-10-11 13:08:45,797 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/44558ca81/8d6b6007a2174b60b2dc560a6281b882/FLAGf737eed8b [2024-10-11 13:08:46,200 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/44558ca81/8d6b6007a2174b60b2dc560a6281b882 [2024-10-11 13:08:46,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 13:08:46,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 13:08:46,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 13:08:46,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 13:08:46,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 13:08:46,214 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40dac530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46, skipping insertion in model container [2024-10-11 13:08:46,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 13:08:46,402 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_variablewrapping_normal_file-66.i[913,926] [2024-10-11 13:08:46,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 13:08:46,467 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 13:08:46,480 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_variablewrapping_normal_file-66.i[913,926] [2024-10-11 13:08:46,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 13:08:46,541 INFO L204 MainTranslator]: Completed translation [2024-10-11 13:08:46,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46 WrapperNode [2024-10-11 13:08:46,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 13:08:46,543 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 13:08:46,543 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 13:08:46,543 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 13:08:46,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,573 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,602 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-10-11 13:08:46,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 13:08:46,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 13:08:46,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 13:08:46,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 13:08:46,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,618 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,630 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]. [2024-10-11 13:08:46,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 13:08:46,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 13:08:46,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 13:08:46,643 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 13:08:46,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (1/1) ... [2024-10-11 13:08:46,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 13:08:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:08:46,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 13:08:46,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 13:08:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 13:08:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 13:08:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 13:08:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 13:08:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 13:08:46,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 13:08:46,774 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 13:08:46,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 13:08:47,082 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-11 13:08:47,082 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 13:08:47,112 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 13:08:47,112 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 13:08:47,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:08:47 BoogieIcfgContainer [2024-10-11 13:08:47,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 13:08:47,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 13:08:47,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 13:08:47,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 13:08:47,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:08:46" (1/3) ... [2024-10-11 13:08:47,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e24297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:08:47, skipping insertion in model container [2024-10-11 13:08:47,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:08:46" (2/3) ... [2024-10-11 13:08:47,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32e24297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:08:47, skipping insertion in model container [2024-10-11 13:08:47,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:08:47" (3/3) ... [2024-10-11 13:08:47,124 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-66.i [2024-10-11 13:08:47,153 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 13:08:47,153 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 13:08:47,195 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 13:08:47,200 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;@32f0b8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 13:08:47,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 13:08:47,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 13:08:47,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 13:08:47,215 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:47,216 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:47,216 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:47,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:47,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1944780512, now seen corresponding path program 1 times [2024-10-11 13:08:47,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:47,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88224626] [2024-10-11 13:08:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:47,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:47,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:47,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:47,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,456 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:47,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:47,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88224626] [2024-10-11 13:08:47,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88224626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:47,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:47,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 13:08:47,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263410396] [2024-10-11 13:08:47,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:47,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 13:08:47,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:47,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 13:08:47,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 13:08:47,479 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 13:08:47,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:47,575 INFO L93 Difference]: Finished difference Result 75 states and 132 transitions. [2024-10-11 13:08:47,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 13:08:47,579 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 85 [2024-10-11 13:08:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:47,593 INFO L225 Difference]: With dead ends: 75 [2024-10-11 13:08:47,594 INFO L226 Difference]: Without dead ends: 37 [2024-10-11 13:08:47,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 13:08:47,603 INFO L432 NwaCegarLoop]: 52 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, 52 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 [2024-10-11 13:08:47,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:08:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-11 13:08:47,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-10-11 13:08:47,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-11 13:08:47,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 55 transitions. [2024-10-11 13:08:47,687 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 55 transitions. Word has length 85 [2024-10-11 13:08:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:47,691 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 55 transitions. [2024-10-11 13:08:47,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 13:08:47,692 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 55 transitions. [2024-10-11 13:08:47,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 13:08:47,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:47,694 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:47,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 13:08:47,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:47,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:47,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1661919200, now seen corresponding path program 1 times [2024-10-11 13:08:47,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:47,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036023338] [2024-10-11 13:08:47,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:47,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:47,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:48,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:48,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036023338] [2024-10-11 13:08:48,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036023338] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:48,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:48,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 13:08:48,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935646662] [2024-10-11 13:08:48,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 13:08:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 13:08:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:08:48,062 INFO L87 Difference]: Start difference. First operand 37 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:48,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:48,106 INFO L93 Difference]: Finished difference Result 109 states and 163 transitions. [2024-10-11 13:08:48,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 13:08:48,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 85 [2024-10-11 13:08:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:48,109 INFO L225 Difference]: With dead ends: 109 [2024-10-11 13:08:48,109 INFO L226 Difference]: Without dead ends: 73 [2024-10-11 13:08:48,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 13:08:48,110 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 13:08:48,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 94 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 13:08:48,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-11 13:08:48,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 70. [2024-10-11 13:08:48,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 39 states have internal predecessors, (48), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-11 13:08:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 104 transitions. [2024-10-11 13:08:48,124 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 104 transitions. Word has length 85 [2024-10-11 13:08:48,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:48,125 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 104 transitions. [2024-10-11 13:08:48,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 104 transitions. [2024-10-11 13:08:48,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 13:08:48,126 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:48,126 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:48,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 13:08:48,127 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:48,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:48,127 INFO L85 PathProgramCache]: Analyzing trace with hash -20088315, now seen corresponding path program 1 times [2024-10-11 13:08:48,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:48,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415409239] [2024-10-11 13:08:48,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:48,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:48,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:48,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:48,538 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:48,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:48,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415409239] [2024-10-11 13:08:48,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415409239] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:48,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:48,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 13:08:48,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388576499] [2024-10-11 13:08:48,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:48,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 13:08:48,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:48,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 13:08:48,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 13:08:48,540 INFO L87 Difference]: Start difference. First operand 70 states and 104 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 13:08:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:48,700 INFO L93 Difference]: Finished difference Result 183 states and 271 transitions. [2024-10-11 13:08:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:08:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 86 [2024-10-11 13:08:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:48,703 INFO L225 Difference]: With dead ends: 183 [2024-10-11 13:08:48,703 INFO L226 Difference]: Without dead ends: 114 [2024-10-11 13:08:48,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 13:08:48,704 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 68 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:08:48,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 162 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:08:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-10-11 13:08:48,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 104. [2024-10-11 13:08:48,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 42 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:08:48,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 155 transitions. [2024-10-11 13:08:48,722 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 155 transitions. Word has length 86 [2024-10-11 13:08:48,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:48,722 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 155 transitions. [2024-10-11 13:08:48,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 13:08:48,723 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 155 transitions. [2024-10-11 13:08:48,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 13:08:48,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:48,724 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:48,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 13:08:48,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:48,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:48,725 INFO L85 PathProgramCache]: Analyzing trace with hash -20147897, now seen corresponding path program 1 times [2024-10-11 13:08:48,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:48,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566720388] [2024-10-11 13:08:48,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:48,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:50,981 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:50,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:50,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566720388] [2024-10-11 13:08:50,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566720388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:50,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:50,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 13:08:50,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592066062] [2024-10-11 13:08:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:50,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 13:08:50,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 13:08:50,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:08:50,985 INFO L87 Difference]: Start difference. First operand 104 states and 155 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:51,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:51,619 INFO L93 Difference]: Finished difference Result 120 states and 173 transitions. [2024-10-11 13:08:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 13:08:51,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-11 13:08:51,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:51,623 INFO L225 Difference]: With dead ends: 120 [2024-10-11 13:08:51,623 INFO L226 Difference]: Without dead ends: 118 [2024-10-11 13:08:51,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2024-10-11 13:08:51,624 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 53 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 13:08:51,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 241 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 13:08:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-11 13:08:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2024-10-11 13:08:51,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:08:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2024-10-11 13:08:51,647 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 86 [2024-10-11 13:08:51,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:51,647 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2024-10-11 13:08:51,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:51,648 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2024-10-11 13:08:51,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 13:08:51,650 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:51,650 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:51,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 13:08:51,651 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:51,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1204557765, now seen corresponding path program 1 times [2024-10-11 13:08:51,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:51,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91064807] [2024-10-11 13:08:51,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:51,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:54,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,092 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:54,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:54,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91064807] [2024-10-11 13:08:54,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91064807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:54,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:54,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 13:08:54,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949376511] [2024-10-11 13:08:54,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:54,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 13:08:54,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:54,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 13:08:54,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:08:54,094 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:54,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:54,679 INFO L93 Difference]: Finished difference Result 141 states and 193 transitions. [2024-10-11 13:08:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 13:08:54,679 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-11 13:08:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:54,680 INFO L225 Difference]: With dead ends: 141 [2024-10-11 13:08:54,680 INFO L226 Difference]: Without dead ends: 139 [2024-10-11 13:08:54,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-10-11 13:08:54,681 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 13:08:54,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 244 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 13:08:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-10-11 13:08:54,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 112. [2024-10-11 13:08:54,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 65 states have (on average 1.2153846153846153) internal successors, (79), 65 states have internal predecessors, (79), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:08:54,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 163 transitions. [2024-10-11 13:08:54,708 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 163 transitions. Word has length 86 [2024-10-11 13:08:54,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:54,708 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 163 transitions. [2024-10-11 13:08:54,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:54,709 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 163 transitions. [2024-10-11 13:08:54,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 13:08:54,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:54,710 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:54,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 13:08:54,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:54,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1206404807, now seen corresponding path program 1 times [2024-10-11 13:08:54,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:54,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528247167] [2024-10-11 13:08:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:54,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:54,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:54,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:54,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:54,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528247167] [2024-10-11 13:08:54,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528247167] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:54,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:54,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 13:08:54,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705619798] [2024-10-11 13:08:54,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:54,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 13:08:54,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:54,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 13:08:54,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 13:08:54,830 INFO L87 Difference]: Start difference. First operand 112 states and 163 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:54,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:54,954 INFO L93 Difference]: Finished difference Result 185 states and 260 transitions. [2024-10-11 13:08:54,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 13:08:54,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-11 13:08:54,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:54,956 INFO L225 Difference]: With dead ends: 185 [2024-10-11 13:08:54,957 INFO L226 Difference]: Without dead ends: 147 [2024-10-11 13:08:54,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 13:08:54,960 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 13:08:54,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 140 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 13:08:54,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-10-11 13:08:54,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 125. [2024-10-11 13:08:54,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:08:54,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2024-10-11 13:08:54,984 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 86 [2024-10-11 13:08:54,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:54,985 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2024-10-11 13:08:54,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:54,985 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2024-10-11 13:08:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 13:08:54,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:54,987 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 13:08:54,988 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:54,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1261816067, now seen corresponding path program 1 times [2024-10-11 13:08:54,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:54,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572123353] [2024-10-11 13:08:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:08:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:08:58,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:08:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:08:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:08:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:08:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:08:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:08:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:08:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:08:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:08:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:08:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:08:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:08:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:08:58,789 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:08:58,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:08:58,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572123353] [2024-10-11 13:08:58,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572123353] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:08:58,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:08:58,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 13:08:58,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856046747] [2024-10-11 13:08:58,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:08:58,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 13:08:58,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:08:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 13:08:58,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:08:58,791 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:59,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:08:59,265 INFO L93 Difference]: Finished difference Result 200 states and 274 transitions. [2024-10-11 13:08:59,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 13:08:59,265 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-11 13:08:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:08:59,267 INFO L225 Difference]: With dead ends: 200 [2024-10-11 13:08:59,267 INFO L226 Difference]: Without dead ends: 159 [2024-10-11 13:08:59,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:08:59,268 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 67 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 13:08:59,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 234 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 13:08:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-11 13:08:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 126. [2024-10-11 13:08:59,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 76 states have (on average 1.1842105263157894) internal successors, (90), 76 states have internal predecessors, (90), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:08:59,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 174 transitions. [2024-10-11 13:08:59,287 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 174 transitions. Word has length 86 [2024-10-11 13:08:59,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:08:59,288 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 174 transitions. [2024-10-11 13:08:59,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:08:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 174 transitions. [2024-10-11 13:08:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-11 13:08:59,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:08:59,289 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:08:59,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 13:08:59,290 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:08:59,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:08:59,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1263663109, now seen corresponding path program 1 times [2024-10-11 13:08:59,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:08:59,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631533263] [2024-10-11 13:08:59,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:08:59,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:08:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:09:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:09:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:09:01,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:09:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:09:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:09:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:09:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:09:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:09:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:09:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:09:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:09:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:09:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:09:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:09:01,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:09:01,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631533263] [2024-10-11 13:09:01,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631533263] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:09:01,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:09:01,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-11 13:09:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470691529] [2024-10-11 13:09:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:09:01,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-11 13:09:01,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:09:01,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-11 13:09:01,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-10-11 13:09:01,859 INFO L87 Difference]: Start difference. First operand 126 states and 174 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:09:02,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:09:02,210 INFO L93 Difference]: Finished difference Result 151 states and 202 transitions. [2024-10-11 13:09:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 13:09:02,211 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 86 [2024-10-11 13:09:02,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:09:02,212 INFO L225 Difference]: With dead ends: 151 [2024-10-11 13:09:02,212 INFO L226 Difference]: Without dead ends: 149 [2024-10-11 13:09:02,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:09:02,213 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 63 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:09:02,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 226 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:09:02,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-10-11 13:09:02,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 125. [2024-10-11 13:09:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:09:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2024-10-11 13:09:02,234 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 86 [2024-10-11 13:09:02,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:09:02,234 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2024-10-11 13:09:02,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:09:02,235 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2024-10-11 13:09:02,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 13:09:02,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:09:02,236 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:09:02,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 13:09:02,237 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:09:02,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:09:02,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1313450494, now seen corresponding path program 1 times [2024-10-11 13:09:02,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:09:02,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057672832] [2024-10-11 13:09:02,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:02,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:09:02,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:09:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:09:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:09:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:09:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:09:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:09:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:09:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:09:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:09:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:09:03,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:09:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:09:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:03,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:09:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:04,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:09:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:09:04,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:09:04,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057672832] [2024-10-11 13:09:04,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057672832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:09:04,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:09:04,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 13:09:04,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681292515] [2024-10-11 13:09:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:09:04,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 13:09:04,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:09:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 13:09:04,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-11 13:09:04,005 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 13:09:04,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:09:04,693 INFO L93 Difference]: Finished difference Result 152 states and 202 transitions. [2024-10-11 13:09:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 13:09:04,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 87 [2024-10-11 13:09:04,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:09:04,695 INFO L225 Difference]: With dead ends: 152 [2024-10-11 13:09:04,695 INFO L226 Difference]: Without dead ends: 150 [2024-10-11 13:09:04,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-10-11 13:09:04,695 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 91 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 13:09:04,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 210 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 13:09:04,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-11 13:09:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 127. [2024-10-11 13:09:04,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 77 states have internal predecessors, (91), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:09:04,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 175 transitions. [2024-10-11 13:09:04,706 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 175 transitions. Word has length 87 [2024-10-11 13:09:04,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:09:04,706 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 175 transitions. [2024-10-11 13:09:04,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-10-11 13:09:04,707 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 175 transitions. [2024-10-11 13:09:04,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 13:09:04,707 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:09:04,707 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:09:04,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 13:09:04,708 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:09:04,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:09:04,708 INFO L85 PathProgramCache]: Analyzing trace with hash 461556868, now seen corresponding path program 1 times [2024-10-11 13:09:04,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:09:04,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887393122] [2024-10-11 13:09:04,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:04,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:09:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:09:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:09:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:09:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:09:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:09:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:09:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:09:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:09:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:09:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:09:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:09:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:09:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:09:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:09:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:09:09,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:09:09,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887393122] [2024-10-11 13:09:09,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887393122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:09:09,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:09:09,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 13:09:09,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654777506] [2024-10-11 13:09:09,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:09:09,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 13:09:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:09:09,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 13:09:09,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 13:09:09,402 INFO L87 Difference]: Start difference. First operand 127 states and 175 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:09:09,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:09:09,896 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2024-10-11 13:09:09,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 13:09:09,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-11 13:09:09,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:09:09,898 INFO L225 Difference]: With dead ends: 156 [2024-10-11 13:09:09,898 INFO L226 Difference]: Without dead ends: 154 [2024-10-11 13:09:09,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-11 13:09:09,899 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 65 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 13:09:09,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 227 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 13:09:09,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-11 13:09:09,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2024-10-11 13:09:09,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 77 states have (on average 1.1818181818181819) internal successors, (91), 77 states have internal predecessors, (91), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:09:09,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 175 transitions. [2024-10-11 13:09:09,911 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 175 transitions. Word has length 87 [2024-10-11 13:09:09,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:09:09,911 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 175 transitions. [2024-10-11 13:09:09,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:09:09,911 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 175 transitions. [2024-10-11 13:09:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-11 13:09:09,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:09:09,912 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 13:09:09,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 13:09:09,912 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:09:09,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:09:09,912 INFO L85 PathProgramCache]: Analyzing trace with hash 518815170, now seen corresponding path program 1 times [2024-10-11 13:09:09,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:09:09,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004831754] [2024-10-11 13:09:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:09,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:09:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:09:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:09:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:09:12,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:09:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:09:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:09:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:09:12,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:09:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:09:12,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:09:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:09:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:09:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:09:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:09:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-11 13:09:12,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:09:12,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004831754] [2024-10-11 13:09:12,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004831754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 13:09:12,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 13:09:12,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 13:09:12,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748095056] [2024-10-11 13:09:12,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 13:09:12,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 13:09:12,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:09:12,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 13:09:12,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 13:09:12,582 INFO L87 Difference]: Start difference. First operand 127 states and 175 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:09:13,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:09:13,027 INFO L93 Difference]: Finished difference Result 152 states and 203 transitions. [2024-10-11 13:09:13,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 13:09:13,028 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-11 13:09:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:09:13,029 INFO L225 Difference]: With dead ends: 152 [2024-10-11 13:09:13,029 INFO L226 Difference]: Without dead ends: 150 [2024-10-11 13:09:13,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-10-11 13:09:13,030 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 60 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 13:09:13,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 234 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 13:09:13,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-11 13:09:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 125. [2024-10-11 13:09:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 75 states have (on average 1.1733333333333333) internal successors, (88), 75 states have internal predecessors, (88), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:09:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 172 transitions. [2024-10-11 13:09:13,042 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 172 transitions. Word has length 87 [2024-10-11 13:09:13,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:09:13,042 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 172 transitions. [2024-10-11 13:09:13,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-11 13:09:13,042 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 172 transitions. [2024-10-11 13:09:13,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 13:09:13,044 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:09:13,044 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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] [2024-10-11 13:09:13,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 13:09:13,044 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:09:13,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:09:13,044 INFO L85 PathProgramCache]: Analyzing trace with hash 324235561, now seen corresponding path program 1 times [2024-10-11 13:09:13,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:09:13,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754471788] [2024-10-11 13:09:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:13,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:09:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:09:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:09:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:09:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:09:15,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:09:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:09:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:09:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:09:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:09:15,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:09:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:09:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:09:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:09:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:09:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 13:09:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:09:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:09:15,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 13:09:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 13:09:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 13:09:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 13:09:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 13:09:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 13:09:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 13:09:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 13:09:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 13:09:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 13:09:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 13:09:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2024-10-11 13:09:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:09:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754471788] [2024-10-11 13:09:15,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754471788] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 13:09:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901160579] [2024-10-11 13:09:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:15,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:09:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:09:15,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 13:09:15,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 13:09:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:15,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 13:09:15,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 13:09:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 785 proven. 33 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-11 13:09:16,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 13:09:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1539 backedges. 70 proven. 33 refuted. 0 times theorem prover too weak. 1436 trivial. 0 not checked. [2024-10-11 13:09:16,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901160579] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 13:09:16,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 13:09:16,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 14 [2024-10-11 13:09:16,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597005883] [2024-10-11 13:09:16,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 13:09:16,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 13:09:16,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 13:09:16,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 13:09:16,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-10-11 13:09:16,399 INFO L87 Difference]: Start difference. First operand 125 states and 172 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-10-11 13:09:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 13:09:17,675 INFO L93 Difference]: Finished difference Result 238 states and 312 transitions. [2024-10-11 13:09:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-11 13:09:17,676 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 170 [2024-10-11 13:09:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 13:09:17,677 INFO L225 Difference]: With dead ends: 238 [2024-10-11 13:09:17,677 INFO L226 Difference]: Without dead ends: 195 [2024-10-11 13:09:17,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2024-10-11 13:09:17,678 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 113 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 13:09:17,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 144 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 13:09:17,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-11 13:09:17,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 140. [2024-10-11 13:09:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 87 states have (on average 1.1494252873563218) internal successors, (100), 87 states have internal predecessors, (100), 42 states have call successors, (42), 10 states have call predecessors, (42), 10 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-11 13:09:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 184 transitions. [2024-10-11 13:09:17,694 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 184 transitions. Word has length 170 [2024-10-11 13:09:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 13:09:17,694 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 184 transitions. [2024-10-11 13:09:17,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-10-11 13:09:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 184 transitions. [2024-10-11 13:09:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-11 13:09:17,696 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 13:09:17,696 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 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] [2024-10-11 13:09:17,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 13:09:17,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 13:09:17,901 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 13:09:17,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 13:09:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash -774169141, now seen corresponding path program 1 times [2024-10-11 13:09:17,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 13:09:17,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303763594] [2024-10-11 13:09:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:17,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 13:09:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 13:09:20,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 13:09:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 13:09:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 13:09:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 13:09:20,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 13:09:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 13:09:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 13:09:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 13:09:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 13:09:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 13:09:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 13:09:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 13:09:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 13:09:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 13:09:20,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 13:09:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 13:09:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 13:09:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 13:09:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 13:09:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 13:09:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 13:09:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 13:09:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-11 13:09:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 13:09:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 13:09:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 13:09:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 13:09:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1540 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1513 trivial. 0 not checked. [2024-10-11 13:09:20,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 13:09:20,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303763594] [2024-10-11 13:09:20,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303763594] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 13:09:20,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511922004] [2024-10-11 13:09:20,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 13:09:20,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 13:09:20,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 13:09:20,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 13:09:20,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 13:09:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 13:09:20,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-10-11 13:09:20,793 INFO L278 TraceCheckSpWp]: Computing forward predicates...