./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39503444fac790cc7ef077fbcc4f712a5a3d8e4f2da830986fe4863c2c197175 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 22:13:48,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 22:13:48,289 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 22:13:48,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 22:13:48,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 22:13:48,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 22:13:48,312 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 22:13:48,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 22:13:48,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 22:13:48,313 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 22:13:48,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 22:13:48,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 22:13:48,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 22:13:48,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 22:13:48,314 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 22:13:48,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 22:13:48,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 22:13:48,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 22:13:48,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 22:13:48,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 22:13:48,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 22:13:48,319 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 22:13:48,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 22:13:48,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 22:13:48,320 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 22:13:48,320 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 22:13:48,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 22:13:48,333 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 22:13:48,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 22:13:48,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 22:13:48,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 22:13:48,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 22:13:48,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:13:48,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 22:13:48,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 22:13:48,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 22:13:48,335 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39503444fac790cc7ef077fbcc4f712a5a3d8e4f2da830986fe4863c2c197175 [2024-11-18 22:13:48,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 22:13:48,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 22:13:48,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 22:13:48,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 22:13:48,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 22:13:48,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i [2024-11-18 22:13:49,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 22:13:50,015 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 22:13:50,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i [2024-11-18 22:13:50,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65e09dac/1dd39cf449d24364b32c7bcca4658c49/FLAG36e0ae74f [2024-11-18 22:13:50,420 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f65e09dac/1dd39cf449d24364b32c7bcca4658c49 [2024-11-18 22:13:50,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 22:13:50,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 22:13:50,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 22:13:50,424 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 22:13:50,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 22:13:50,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7972ca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50, skipping insertion in model container [2024-11-18 22:13:50,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,447 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 22:13:50,591 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i[915,928] [2024-11-18 22:13:50,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:13:50,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 22:13:50,667 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-6.i[915,928] [2024-11-18 22:13:50,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 22:13:50,704 INFO L204 MainTranslator]: Completed translation [2024-11-18 22:13:50,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50 WrapperNode [2024-11-18 22:13:50,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 22:13:50,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 22:13:50,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 22:13:50,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 22:13:50,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,722 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,762 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 133 [2024-11-18 22:13:50,765 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 22:13:50,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 22:13:50,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 22:13:50,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 22:13:50,777 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,780 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,795 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 22:13:50,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,804 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 22:13:50,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 22:13:50,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 22:13:50,808 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 22:13:50,809 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (1/1) ... [2024-11-18 22:13:50,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 22:13:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:13:50,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 22:13:50,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 22:13:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 22:13:50,899 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 22:13:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 22:13:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 22:13:50,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 22:13:50,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 22:13:50,983 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 22:13:50,986 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 22:13:51,200 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-18 22:13:51,200 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 22:13:51,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 22:13:51,211 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 22:13:51,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:13:51 BoogieIcfgContainer [2024-11-18 22:13:51,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 22:13:51,213 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 22:13:51,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 22:13:51,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 22:13:51,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:13:50" (1/3) ... [2024-11-18 22:13:51,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9f19f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:13:51, skipping insertion in model container [2024-11-18 22:13:51,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:13:50" (2/3) ... [2024-11-18 22:13:51,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9f19f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:13:51, skipping insertion in model container [2024-11-18 22:13:51,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:13:51" (3/3) ... [2024-11-18 22:13:51,218 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-6.i [2024-11-18 22:13:51,237 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 22:13:51,238 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 22:13:51,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 22:13:51,289 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;@2c98b4f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 22:13:51,292 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 22:13:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-18 22:13:51,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 22:13:51,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:13:51,307 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:13:51,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:13:51,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:13:51,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1262268394, now seen corresponding path program 1 times [2024-11-18 22:13:51,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:13:51,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338241781] [2024-11-18 22:13:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:13:51,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:13:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:13:51,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-18 22:13:51,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:13:51,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338241781] [2024-11-18 22:13:51,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338241781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:13:51,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483824035] [2024-11-18 22:13:51,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:13:51,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:13:51,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:13:51,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:13:51,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 22:13:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:13:51,748 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 22:13:51,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 22:13:51,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-18 22:13:51,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 22:13:51,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483824035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:13:51,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 22:13:51,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 22:13:51,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874307819] [2024-11-18 22:13:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:13:51,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 22:13:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:13:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 22:13:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:13:51,823 INFO L87 Difference]: Start difference. First operand has 60 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 35 states have internal predecessors, (45), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-18 22:13:51,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:13:51,843 INFO L93 Difference]: Finished difference Result 113 states and 199 transitions. [2024-11-18 22:13:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 22:13:51,846 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 140 [2024-11-18 22:13:51,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:13:51,851 INFO L225 Difference]: With dead ends: 113 [2024-11-18 22:13:51,851 INFO L226 Difference]: Without dead ends: 56 [2024-11-18 22:13:51,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 22:13:51,857 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:13:51,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:13:51,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-18 22:13:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-18 22:13:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 31 states have internal predecessors, (38), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-18 22:13:51,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 84 transitions. [2024-11-18 22:13:51,894 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 84 transitions. Word has length 140 [2024-11-18 22:13:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:13:51,894 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 84 transitions. [2024-11-18 22:13:51,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-18 22:13:51,894 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 84 transitions. [2024-11-18 22:13:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 22:13:51,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:13:51,897 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:13:51,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 22:13:52,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 22:13:52,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:13:52,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:13:52,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1944451116, now seen corresponding path program 1 times [2024-11-18 22:13:52,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:13:52,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329409702] [2024-11-18 22:13:52,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:13:52,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:13:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:13:52,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:13:52,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:13:52,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329409702] [2024-11-18 22:13:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329409702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:13:52,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:13:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 22:13:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147878329] [2024-11-18 22:13:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:13:52,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 22:13:52,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:13:52,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 22:13:52,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:13:52,516 INFO L87 Difference]: Start difference. First operand 56 states and 84 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:13:52,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:13:52,571 INFO L93 Difference]: Finished difference Result 148 states and 222 transitions. [2024-11-18 22:13:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:13:52,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-18 22:13:52,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:13:52,575 INFO L225 Difference]: With dead ends: 148 [2024-11-18 22:13:52,576 INFO L226 Difference]: Without dead ends: 95 [2024-11-18 22:13:52,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 22:13:52,579 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 55 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 22:13:52,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 199 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 22:13:52,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-18 22:13:52,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 92. [2024-11-18 22:13:52,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 52 states have internal predecessors, (62), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:13:52,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 138 transitions. [2024-11-18 22:13:52,615 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 138 transitions. Word has length 140 [2024-11-18 22:13:52,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:13:52,617 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 138 transitions. [2024-11-18 22:13:52,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:13:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 138 transitions. [2024-11-18 22:13:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 22:13:52,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:13:52,620 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:13:52,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 22:13:52,622 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:13:52,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:13:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1135104490, now seen corresponding path program 1 times [2024-11-18 22:13:52,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:13:52,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922966055] [2024-11-18 22:13:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:13:52,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:13:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:13:52,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:13:52,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:13:52,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922966055] [2024-11-18 22:13:52,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922966055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:13:52,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:13:52,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 22:13:52,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154045432] [2024-11-18 22:13:52,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:13:52,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 22:13:52,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:13:52,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 22:13:52,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 22:13:52,970 INFO L87 Difference]: Start difference. First operand 92 states and 138 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:13:53,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:13:53,154 INFO L93 Difference]: Finished difference Result 181 states and 273 transitions. [2024-11-18 22:13:53,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 22:13:53,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-18 22:13:53,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:13:53,161 INFO L225 Difference]: With dead ends: 181 [2024-11-18 22:13:53,163 INFO L226 Difference]: Without dead ends: 92 [2024-11-18 22:13:53,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 22:13:53,167 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 55 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 22:13:53,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 80 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 22:13:53,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-18 22:13:53,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-18 22:13:53,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 52 states have internal predecessors, (60), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:13:53,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 136 transitions. [2024-11-18 22:13:53,195 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 136 transitions. Word has length 140 [2024-11-18 22:13:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:13:53,196 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 136 transitions. [2024-11-18 22:13:53,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:13:53,196 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 136 transitions. [2024-11-18 22:13:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-18 22:13:53,203 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:13:53,204 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:13:53,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 22:13:53,204 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:13:53,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:13:53,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1384855444, now seen corresponding path program 1 times [2024-11-18 22:13:53,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:13:53,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755737878] [2024-11-18 22:13:53,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:13:53,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:13:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:13:57,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:13:57,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:13:57,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755737878] [2024-11-18 22:13:57,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755737878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:13:57,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:13:57,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 22:13:57,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294271442] [2024-11-18 22:13:57,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:13:57,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 22:13:57,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:13:57,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 22:13:57,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:13:57,523 INFO L87 Difference]: Start difference. First operand 92 states and 136 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:00,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:00,259 INFO L93 Difference]: Finished difference Result 102 states and 145 transitions. [2024-11-18 22:14:00,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 22:14:00,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-18 22:14:00,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:00,262 INFO L225 Difference]: With dead ends: 102 [2024-11-18 22:14:00,263 INFO L226 Difference]: Without dead ends: 100 [2024-11-18 22:14:00,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:14:00,264 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 32 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:00,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 294 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 22:14:00,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-18 22:14:00,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2024-11-18 22:14:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 54 states have (on average 1.1666666666666667) internal successors, (63), 55 states have internal predecessors, (63), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:14:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 139 transitions. [2024-11-18 22:14:00,287 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 139 transitions. Word has length 140 [2024-11-18 22:14:00,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:00,288 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 139 transitions. [2024-11-18 22:14:00,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:00,288 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 139 transitions. [2024-11-18 22:14:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 22:14:00,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:00,291 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:00,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 22:14:00,291 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:00,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1143973856, now seen corresponding path program 1 times [2024-11-18 22:14:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189276030] [2024-11-18 22:14:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:02,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:02,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189276030] [2024-11-18 22:14:02,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189276030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:02,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:02,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:14:02,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109202501] [2024-11-18 22:14:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:02,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:14:02,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:02,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:14:02,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:14:02,264 INFO L87 Difference]: Start difference. First operand 95 states and 139 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:02,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:02,776 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2024-11-18 22:14:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 22:14:02,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-18 22:14:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:02,779 INFO L225 Difference]: With dead ends: 116 [2024-11-18 22:14:02,779 INFO L226 Difference]: Without dead ends: 114 [2024-11-18 22:14:02,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-18 22:14:02,780 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 56 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:02,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 412 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:14:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-18 22:14:02,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 101. [2024-11-18 22:14:02,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 60 states have (on average 1.1666666666666667) internal successors, (70), 61 states have internal predecessors, (70), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:14:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2024-11-18 22:14:02,802 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 141 [2024-11-18 22:14:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:02,802 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2024-11-18 22:14:02,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:02,803 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2024-11-18 22:14:02,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 22:14:02,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:02,804 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:02,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 22:14:02,804 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:02,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:02,805 INFO L85 PathProgramCache]: Analyzing trace with hash 334627230, now seen corresponding path program 1 times [2024-11-18 22:14:02,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:02,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239630344] [2024-11-18 22:14:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:02,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:05,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:05,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:05,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239630344] [2024-11-18 22:14:05,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239630344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:05,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:05,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:14:05,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373367969] [2024-11-18 22:14:05,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:05,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:14:05,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:05,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:14:05,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:14:05,650 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:08,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:08,029 INFO L93 Difference]: Finished difference Result 129 states and 177 transitions. [2024-11-18 22:14:08,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 22:14:08,030 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-18 22:14:08,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:08,032 INFO L225 Difference]: With dead ends: 129 [2024-11-18 22:14:08,032 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 22:14:08,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:14:08,032 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 41 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:08,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 424 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:14:08,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 22:14:08,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2024-11-18 22:14:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 61 states have (on average 1.180327868852459) internal successors, (72), 62 states have internal predecessors, (72), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:14:08,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 148 transitions. [2024-11-18 22:14:08,044 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 148 transitions. Word has length 141 [2024-11-18 22:14:08,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:08,045 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 148 transitions. [2024-11-18 22:14:08,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:08,045 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 148 transitions. [2024-11-18 22:14:08,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 22:14:08,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:08,046 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:08,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 22:14:08,046 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:08,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:08,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1014685600, now seen corresponding path program 1 times [2024-11-18 22:14:08,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:08,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018652614] [2024-11-18 22:14:08,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:08,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:12,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:12,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:12,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018652614] [2024-11-18 22:14:12,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018652614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:12,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:12,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 22:14:12,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996430643] [2024-11-18 22:14:12,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:12,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 22:14:12,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:12,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 22:14:12,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-18 22:14:12,310 INFO L87 Difference]: Start difference. First operand 102 states and 148 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:13,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:13,302 INFO L93 Difference]: Finished difference Result 125 states and 173 transitions. [2024-11-18 22:14:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 22:14:13,303 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-18 22:14:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:13,304 INFO L225 Difference]: With dead ends: 125 [2024-11-18 22:14:13,304 INFO L226 Difference]: Without dead ends: 123 [2024-11-18 22:14:13,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:14:13,305 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 22 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:13,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 374 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 22:14:13,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-18 22:14:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 98. [2024-11-18 22:14:13,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 57 states have (on average 1.1578947368421053) internal successors, (66), 58 states have internal predecessors, (66), 38 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-18 22:14:13,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 142 transitions. [2024-11-18 22:14:13,323 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 142 transitions. Word has length 141 [2024-11-18 22:14:13,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:13,323 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 142 transitions. [2024-11-18 22:14:13,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:13,324 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 142 transitions. [2024-11-18 22:14:13,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 22:14:13,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:13,325 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:13,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 22:14:13,325 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:13,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:13,329 INFO L85 PathProgramCache]: Analyzing trace with hash -216406091, now seen corresponding path program 1 times [2024-11-18 22:14:13,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:13,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271943081] [2024-11-18 22:14:13,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:13,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:13,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:13,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271943081] [2024-11-18 22:14:13,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271943081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:13,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:13,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 22:14:13,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797104984] [2024-11-18 22:14:13,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:13,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 22:14:13,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:13,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 22:14:13,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 22:14:13,723 INFO L87 Difference]: Start difference. First operand 98 states and 142 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:14,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:14,084 INFO L93 Difference]: Finished difference Result 263 states and 381 transitions. [2024-11-18 22:14:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 22:14:14,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-18 22:14:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:14,086 INFO L225 Difference]: With dead ends: 263 [2024-11-18 22:14:14,086 INFO L226 Difference]: Without dead ends: 168 [2024-11-18 22:14:14,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-18 22:14:14,087 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 42 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:14,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 263 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:14:14,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-18 22:14:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 150. [2024-11-18 22:14:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 86 states have internal predecessors, (99), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 22:14:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 221 transitions. [2024-11-18 22:14:14,105 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 221 transitions. Word has length 141 [2024-11-18 22:14:14,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:14,106 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 221 transitions. [2024-11-18 22:14:14,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:14,106 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 221 transitions. [2024-11-18 22:14:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-18 22:14:14,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:14,107 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:14,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 22:14:14,107 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:14,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash -214559049, now seen corresponding path program 1 times [2024-11-18 22:14:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:14,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8425871] [2024-11-18 22:14:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:14,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:16,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:16,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:16,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8425871] [2024-11-18 22:14:16,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8425871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:16,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:16,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 22:14:16,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317761800] [2024-11-18 22:14:16,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:16,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 22:14:16,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:16,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 22:14:16,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-18 22:14:16,515 INFO L87 Difference]: Start difference. First operand 150 states and 221 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:18,615 INFO L93 Difference]: Finished difference Result 172 states and 243 transitions. [2024-11-18 22:14:18,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 22:14:18,616 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 141 [2024-11-18 22:14:18,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:18,618 INFO L225 Difference]: With dead ends: 172 [2024-11-18 22:14:18,619 INFO L226 Difference]: Without dead ends: 170 [2024-11-18 22:14:18,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2024-11-18 22:14:18,620 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 63 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:18,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 449 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 22:14:18,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-18 22:14:18,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 150. [2024-11-18 22:14:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 86 states have internal predecessors, (99), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 22:14:18,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 221 transitions. [2024-11-18 22:14:18,644 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 221 transitions. Word has length 141 [2024-11-18 22:14:18,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:18,644 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 221 transitions. [2024-11-18 22:14:18,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:18,645 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 221 transitions. [2024-11-18 22:14:18,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 22:14:18,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:18,646 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:18,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 22:14:18,646 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:18,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:18,647 INFO L85 PathProgramCache]: Analyzing trace with hash 867890881, now seen corresponding path program 1 times [2024-11-18 22:14:18,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:18,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137853113] [2024-11-18 22:14:18,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:18,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:20,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:20,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:20,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137853113] [2024-11-18 22:14:20,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137853113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:20,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:20,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 22:14:20,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843513449] [2024-11-18 22:14:20,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:20,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 22:14:20,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 22:14:20,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:14:20,382 INFO L87 Difference]: Start difference. First operand 150 states and 221 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:20,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:20,825 INFO L93 Difference]: Finished difference Result 174 states and 246 transitions. [2024-11-18 22:14:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 22:14:20,825 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-18 22:14:20,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:20,827 INFO L225 Difference]: With dead ends: 174 [2024-11-18 22:14:20,827 INFO L226 Difference]: Without dead ends: 172 [2024-11-18 22:14:20,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-18 22:14:20,827 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 50 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:20,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 487 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 22:14:20,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-18 22:14:20,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 154. [2024-11-18 22:14:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 90 states have internal predecessors, (105), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 22:14:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 227 transitions. [2024-11-18 22:14:20,852 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 227 transitions. Word has length 142 [2024-11-18 22:14:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:20,853 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 227 transitions. [2024-11-18 22:14:20,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 227 transitions. [2024-11-18 22:14:20,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 22:14:20,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:20,854 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:20,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 22:14:20,855 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:20,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:20,855 INFO L85 PathProgramCache]: Analyzing trace with hash 869737923, now seen corresponding path program 1 times [2024-11-18 22:14:20,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:20,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721394209] [2024-11-18 22:14:20,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:20,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:22,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:22,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721394209] [2024-11-18 22:14:22,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721394209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:22,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:22,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 22:14:22,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745760209] [2024-11-18 22:14:22,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:22,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 22:14:22,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:22,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 22:14:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-18 22:14:22,696 INFO L87 Difference]: Start difference. First operand 154 states and 227 transitions. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:23,049 INFO L93 Difference]: Finished difference Result 169 states and 241 transitions. [2024-11-18 22:14:23,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 22:14:23,049 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-18 22:14:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:23,050 INFO L225 Difference]: With dead ends: 169 [2024-11-18 22:14:23,050 INFO L226 Difference]: Without dead ends: 167 [2024-11-18 22:14:23,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2024-11-18 22:14:23,051 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 48 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:23,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 370 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 22:14:23,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-18 22:14:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 154. [2024-11-18 22:14:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 90 states have internal predecessors, (105), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 22:14:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 227 transitions. [2024-11-18 22:14:23,069 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 227 transitions. Word has length 142 [2024-11-18 22:14:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:23,070 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 227 transitions. [2024-11-18 22:14:23,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 227 transitions. [2024-11-18 22:14:23,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-18 22:14:23,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:23,071 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 22:14:23,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 22:14:23,071 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:23,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:23,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1549796293, now seen corresponding path program 1 times [2024-11-18 22:14:23,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:23,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565388858] [2024-11-18 22:14:23,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:23,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-18 22:14:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565388858] [2024-11-18 22:14:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565388858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 22:14:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 22:14:28,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 22:14:28,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9610806] [2024-11-18 22:14:28,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 22:14:28,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 22:14:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 22:14:28,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 22:14:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-18 22:14:28,947 INFO L87 Difference]: Start difference. First operand 154 states and 227 transitions. Second operand has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 22:14:32,545 INFO L93 Difference]: Finished difference Result 176 states and 249 transitions. [2024-11-18 22:14:32,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 22:14:32,546 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 142 [2024-11-18 22:14:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 22:14:32,547 INFO L225 Difference]: With dead ends: 176 [2024-11-18 22:14:32,547 INFO L226 Difference]: Without dead ends: 174 [2024-11-18 22:14:32,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2024-11-18 22:14:32,548 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 75 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 22:14:32,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 447 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 22:14:32,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-18 22:14:32,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 154. [2024-11-18 22:14:32,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 90 states have internal predecessors, (105), 61 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-18 22:14:32,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 227 transitions. [2024-11-18 22:14:32,565 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 227 transitions. Word has length 142 [2024-11-18 22:14:32,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 22:14:32,565 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 227 transitions. [2024-11-18 22:14:32,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3076923076923075) internal successors, (30), 13 states have internal predecessors, (30), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-18 22:14:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 227 transitions. [2024-11-18 22:14:32,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 22:14:32,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 22:14:32,570 INFO L215 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 22:14:32,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 22:14:32,570 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 22:14:32,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 22:14:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash -429005535, now seen corresponding path program 1 times [2024-11-18 22:14:32,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 22:14:32,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639412229] [2024-11-18 22:14:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 22:14:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4184 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-18 22:14:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 22:14:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639412229] [2024-11-18 22:14:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639412229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 22:14:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558107738] [2024-11-18 22:14:33,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 22:14:33,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 22:14:33,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 22:14:33,554 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 22:14:33,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 22:14:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 22:14:33,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-18 22:14:33,673 INFO L278 TraceCheckSpWp]: Computing forward predicates...