/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 16:02:14,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 16:02:15,036 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 16:02:15,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 16:02:15,039 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 16:02:15,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 16:02:15,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 16:02:15,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 16:02:15,066 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 16:02:15,076 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 16:02:15,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 16:02:15,077 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 16:02:15,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 16:02:15,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 16:02:15,077 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 16:02:15,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 16:02:15,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 16:02:15,078 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 16:02:15,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 16:02:15,078 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 16:02:15,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 16:02:15,079 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 16:02:15,079 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 16:02:15,079 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 16:02:15,079 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 16:02:15,079 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 16:02:15,079 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 16:02:15,080 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 16:02:15,080 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 16:02:15,080 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 16:02:15,080 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 16:02:15,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 16:02:15,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:02:15,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 16:02:15,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 16:02:15,082 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 16:02:15,082 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 16:02:15,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 16:02:15,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 16:02:15,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 16:02:15,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 16:02:15,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 16:02:15,286 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 16:02:15,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i [2023-12-19 16:02:16,332 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 16:02:16,545 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 16:02:16,546 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i [2023-12-19 16:02:16,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6337a75/9517166c9e7742c2b6977533b7183b2d/FLAGc9b084c58 [2023-12-19 16:02:16,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6337a75/9517166c9e7742c2b6977533b7183b2d [2023-12-19 16:02:16,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 16:02:16,591 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 16:02:16,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 16:02:16,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 16:02:16,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 16:02:16,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b89978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16, skipping insertion in model container [2023-12-19 16:02:16,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,617 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 16:02:16,704 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i[917,930] [2023-12-19 16:02:16,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:02:16,759 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 16:02:16,767 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-32.i[917,930] [2023-12-19 16:02:16,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 16:02:16,800 INFO L206 MainTranslator]: Completed translation [2023-12-19 16:02:16,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16 WrapperNode [2023-12-19 16:02:16,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 16:02:16,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 16:02:16,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 16:02:16,801 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 16:02:16,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,849 INFO L138 Inliner]: procedures = 26, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 444 [2023-12-19 16:02:16,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 16:02:16,850 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 16:02:16,850 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 16:02:16,850 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 16:02:16,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,864 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,897 INFO L175 MemorySlicer]: Split 124 memory accesses to 2 slices as follows [2, 122]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 15 writes are split as follows [0, 15]. [2023-12-19 16:02:16,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,908 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 16:02:16,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 16:02:16,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 16:02:16,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 16:02:16,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (1/1) ... [2023-12-19 16:02:16,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 16:02:16,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:02:16,966 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) [2023-12-19 16:02:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 16:02:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 16:02:16,988 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 [2023-12-19 16:02:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 16:02:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 16:02:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 16:02:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 16:02:16,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 16:02:16,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 16:02:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 16:02:16,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 16:02:16,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 16:02:17,096 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 16:02:17,098 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 16:02:17,466 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 16:02:17,497 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 16:02:17,497 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 16:02:17,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:02:17 BoogieIcfgContainer [2023-12-19 16:02:17,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 16:02:17,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 16:02:17,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 16:02:17,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 16:02:17,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:02:16" (1/3) ... [2023-12-19 16:02:17,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637c74af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:02:17, skipping insertion in model container [2023-12-19 16:02:17,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:02:16" (2/3) ... [2023-12-19 16:02:17,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637c74af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:02:17, skipping insertion in model container [2023-12-19 16:02:17,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:02:17" (3/3) ... [2023-12-19 16:02:17,502 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-32.i [2023-12-19 16:02:17,513 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 16:02:17,513 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 16:02:17,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 16:02:17,550 INFO L357 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, mHoare=true, 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;@25407287, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 16:02:17,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 16:02:17,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 16:02:17,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-19 16:02:17,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:17,566 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:17,567 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:17,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:17,570 INFO L85 PathProgramCache]: Analyzing trace with hash -403307072, now seen corresponding path program 1 times [2023-12-19 16:02:17,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:17,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903529290] [2023-12-19 16:02:17,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:17,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:17,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:17,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:17,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:17,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903529290] [2023-12-19 16:02:17,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903529290] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:17,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:17,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 16:02:17,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586225897] [2023-12-19 16:02:17,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:17,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 16:02:17,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:17,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 16:02:17,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 16:02:17,856 INFO L87 Difference]: Start difference. First operand has 92 states, 71 states have (on average 1.408450704225352) internal successors, (100), 72 states have internal predecessors, (100), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 16:02:17,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:17,905 INFO L93 Difference]: Finished difference Result 181 states and 288 transitions. [2023-12-19 16:02:17,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 16:02:17,906 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 124 [2023-12-19 16:02:17,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:17,913 INFO L225 Difference]: With dead ends: 181 [2023-12-19 16:02:17,913 INFO L226 Difference]: Without dead ends: 90 [2023-12-19 16:02:17,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 16:02:17,920 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:17,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:02:17,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-19 16:02:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-19 16:02:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 70 states have (on average 1.3) internal successors, (91), 70 states have internal predecessors, (91), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 16:02:17,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 127 transitions. [2023-12-19 16:02:17,967 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 127 transitions. Word has length 124 [2023-12-19 16:02:17,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:17,967 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 127 transitions. [2023-12-19 16:02:17,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 16:02:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 127 transitions. [2023-12-19 16:02:17,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-19 16:02:17,973 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:17,973 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:17,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 16:02:17,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:17,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:17,974 INFO L85 PathProgramCache]: Analyzing trace with hash 851464092, now seen corresponding path program 1 times [2023-12-19 16:02:17,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:17,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318562134] [2023-12-19 16:02:17,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:17,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:18,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:18,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:18,281 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:18,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:18,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318562134] [2023-12-19 16:02:18,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318562134] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:18,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:18,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 16:02:18,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707550459] [2023-12-19 16:02:18,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:18,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 16:02:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:18,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 16:02:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 16:02:18,284 INFO L87 Difference]: Start difference. First operand 90 states and 127 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:18,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:18,511 INFO L93 Difference]: Finished difference Result 269 states and 380 transitions. [2023-12-19 16:02:18,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 16:02:18,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 124 [2023-12-19 16:02:18,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:18,513 INFO L225 Difference]: With dead ends: 269 [2023-12-19 16:02:18,513 INFO L226 Difference]: Without dead ends: 180 [2023-12-19 16:02:18,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:02:18,515 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 89 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:18,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 285 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 16:02:18,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-19 16:02:18,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 150. [2023-12-19 16:02:18,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.2612612612612613) internal successors, (140), 111 states have internal predecessors, (140), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:18,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 212 transitions. [2023-12-19 16:02:18,533 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 212 transitions. Word has length 124 [2023-12-19 16:02:18,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:18,534 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 212 transitions. [2023-12-19 16:02:18,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:18,534 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 212 transitions. [2023-12-19 16:02:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-19 16:02:18,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:18,536 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:18,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 16:02:18,536 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:18,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2069130434, now seen corresponding path program 1 times [2023-12-19 16:02:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:18,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868930451] [2023-12-19 16:02:18,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:18,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:19,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:19,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:19,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:19,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868930451] [2023-12-19 16:02:19,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868930451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:19,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:19,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-19 16:02:19,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199384615] [2023-12-19 16:02:19,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:19,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 16:02:19,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:19,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 16:02:19,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-12-19 16:02:19,676 INFO L87 Difference]: Start difference. First operand 150 states and 212 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:20,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:20,557 INFO L93 Difference]: Finished difference Result 353 states and 504 transitions. [2023-12-19 16:02:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 16:02:20,558 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 132 [2023-12-19 16:02:20,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:20,560 INFO L225 Difference]: With dead ends: 353 [2023-12-19 16:02:20,560 INFO L226 Difference]: Without dead ends: 264 [2023-12-19 16:02:20,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=419, Unknown=0, NotChecked=0, Total=552 [2023-12-19 16:02:20,562 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 545 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:20,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 636 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 16:02:20,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-12-19 16:02:20,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 182. [2023-12-19 16:02:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 143 states have (on average 1.3146853146853146) internal successors, (188), 143 states have internal predecessors, (188), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:20,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 260 transitions. [2023-12-19 16:02:20,597 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 260 transitions. Word has length 132 [2023-12-19 16:02:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:20,598 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 260 transitions. [2023-12-19 16:02:20,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 260 transitions. [2023-12-19 16:02:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-19 16:02:20,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:20,603 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:20,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 16:02:20,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:20,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:20,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1466999230, now seen corresponding path program 1 times [2023-12-19 16:02:20,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:20,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703162500] [2023-12-19 16:02:20,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:20,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:21,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:21,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:21,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:21,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:21,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:21,777 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:21,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:21,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703162500] [2023-12-19 16:02:21,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703162500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:21,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:21,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-19 16:02:21,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203195999] [2023-12-19 16:02:21,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:21,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-19 16:02:21,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:21,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-19 16:02:21,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-19 16:02:21,779 INFO L87 Difference]: Start difference. First operand 182 states and 260 transitions. Second operand has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 16:02:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:22,961 INFO L93 Difference]: Finished difference Result 394 states and 562 transitions. [2023-12-19 16:02:22,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-19 16:02:22,962 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 133 [2023-12-19 16:02:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:22,963 INFO L225 Difference]: With dead ends: 394 [2023-12-19 16:02:22,963 INFO L226 Difference]: Without dead ends: 286 [2023-12-19 16:02:22,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2023-12-19 16:02:22,965 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 502 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:22,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 663 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 16:02:22,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-19 16:02:22,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 182. [2023-12-19 16:02:22,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 143 states have (on average 1.3146853146853146) internal successors, (188), 143 states have internal predecessors, (188), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:22,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 260 transitions. [2023-12-19 16:02:22,987 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 260 transitions. Word has length 133 [2023-12-19 16:02:22,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:22,988 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 260 transitions. [2023-12-19 16:02:22,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2857142857142856) internal successors, (46), 14 states have internal predecessors, (46), 2 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-19 16:02:22,988 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 260 transitions. [2023-12-19 16:02:22,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 16:02:22,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:22,990 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:22,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 16:02:22,990 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:22,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1454826587, now seen corresponding path program 1 times [2023-12-19 16:02:22,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:22,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839481071] [2023-12-19 16:02:22,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:22,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:25,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:25,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:25,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:26,083 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:26,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:26,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839481071] [2023-12-19 16:02:26,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839481071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:26,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:26,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-19 16:02:26,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268479260] [2023-12-19 16:02:26,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:26,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 16:02:26,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:26,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 16:02:26,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-12-19 16:02:26,089 INFO L87 Difference]: Start difference. First operand 182 states and 260 transitions. Second operand has 16 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:28,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:28,510 INFO L93 Difference]: Finished difference Result 568 states and 809 transitions. [2023-12-19 16:02:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-19 16:02:28,511 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2023-12-19 16:02:28,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:28,514 INFO L225 Difference]: With dead ends: 568 [2023-12-19 16:02:28,514 INFO L226 Difference]: Without dead ends: 460 [2023-12-19 16:02:28,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2023-12-19 16:02:28,515 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 425 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:28,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1554 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-19 16:02:28,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-12-19 16:02:28,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 320. [2023-12-19 16:02:28,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 262 states have (on average 1.3396946564885497) internal successors, (351), 262 states have internal predecessors, (351), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 16:02:28,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 459 transitions. [2023-12-19 16:02:28,555 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 459 transitions. Word has length 134 [2023-12-19 16:02:28,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:28,556 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 459 transitions. [2023-12-19 16:02:28,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:28,556 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 459 transitions. [2023-12-19 16:02:28,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 16:02:28,558 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:28,558 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:28,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 16:02:28,558 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:28,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 546770519, now seen corresponding path program 1 times [2023-12-19 16:02:28,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:28,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710085016] [2023-12-19 16:02:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:28,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:28,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:28,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:28,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:28,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710085016] [2023-12-19 16:02:28,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710085016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:28,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:28,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 16:02:28,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699315357] [2023-12-19 16:02:28,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:28,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 16:02:28,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:28,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 16:02:28,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 16:02:28,686 INFO L87 Difference]: Start difference. First operand 320 states and 459 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:28,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:28,737 INFO L93 Difference]: Finished difference Result 574 states and 823 transitions. [2023-12-19 16:02:28,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 16:02:28,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 134 [2023-12-19 16:02:28,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:28,740 INFO L225 Difference]: With dead ends: 574 [2023-12-19 16:02:28,740 INFO L226 Difference]: Without dead ends: 344 [2023-12-19 16:02:28,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:02:28,742 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 60 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:28,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 454 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 16:02:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-19 16:02:28,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 326. [2023-12-19 16:02:28,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 268 states have (on average 1.3320895522388059) internal successors, (357), 268 states have internal predecessors, (357), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 16:02:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 465 transitions. [2023-12-19 16:02:28,772 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 465 transitions. Word has length 134 [2023-12-19 16:02:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:28,773 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 465 transitions. [2023-12-19 16:02:28,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 465 transitions. [2023-12-19 16:02:28,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-12-19 16:02:28,774 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:28,774 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:28,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 16:02:28,775 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:28,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:28,775 INFO L85 PathProgramCache]: Analyzing trace with hash 690554459, now seen corresponding path program 1 times [2023-12-19 16:02:28,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:28,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290397153] [2023-12-19 16:02:28,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:28,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:30,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:30,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:30,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:30,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290397153] [2023-12-19 16:02:30,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290397153] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:30,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:30,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-19 16:02:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441724674] [2023-12-19 16:02:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:30,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 16:02:30,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:30,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 16:02:30,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-19 16:02:30,762 INFO L87 Difference]: Start difference. First operand 326 states and 465 transitions. Second operand has 16 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:31,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:31,952 INFO L93 Difference]: Finished difference Result 722 states and 1019 transitions. [2023-12-19 16:02:31,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 16:02:31,952 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 134 [2023-12-19 16:02:31,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:31,954 INFO L225 Difference]: With dead ends: 722 [2023-12-19 16:02:31,954 INFO L226 Difference]: Without dead ends: 486 [2023-12-19 16:02:31,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-12-19 16:02:31,956 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 519 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:31,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 470 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 16:02:31,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-19 16:02:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 341. [2023-12-19 16:02:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 283 states have (on average 1.332155477031802) internal successors, (377), 283 states have internal predecessors, (377), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 16:02:31,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 485 transitions. [2023-12-19 16:02:31,993 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 485 transitions. Word has length 134 [2023-12-19 16:02:31,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:31,995 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 485 transitions. [2023-12-19 16:02:31,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 16 states have internal predecessors, (47), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 485 transitions. [2023-12-19 16:02:31,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 16:02:31,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:31,997 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:31,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 16:02:31,997 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:31,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:31,997 INFO L85 PathProgramCache]: Analyzing trace with hash -396550843, now seen corresponding path program 1 times [2023-12-19 16:02:31,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:31,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246223583] [2023-12-19 16:02:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:31,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:34,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:34,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:34,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:34,638 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:34,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:34,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246223583] [2023-12-19 16:02:34,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246223583] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:34,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:34,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-19 16:02:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442937324] [2023-12-19 16:02:34,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:34,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 16:02:34,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 16:02:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2023-12-19 16:02:34,640 INFO L87 Difference]: Start difference. First operand 341 states and 485 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-19 16:02:36,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:36,264 INFO L93 Difference]: Finished difference Result 626 states and 883 transitions. [2023-12-19 16:02:36,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-19 16:02:36,265 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 135 [2023-12-19 16:02:36,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:36,267 INFO L225 Difference]: With dead ends: 626 [2023-12-19 16:02:36,267 INFO L226 Difference]: Without dead ends: 504 [2023-12-19 16:02:36,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2023-12-19 16:02:36,268 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 278 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 1361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:36,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 785 Invalid, 1361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 16:02:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-12-19 16:02:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 219. [2023-12-19 16:02:36,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 180 states have (on average 1.3444444444444446) internal successors, (242), 180 states have internal predecessors, (242), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:36,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 314 transitions. [2023-12-19 16:02:36,292 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 314 transitions. Word has length 135 [2023-12-19 16:02:36,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:36,292 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 314 transitions. [2023-12-19 16:02:36,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 16 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-19 16:02:36,293 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 314 transitions. [2023-12-19 16:02:36,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-12-19 16:02:36,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:36,294 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:36,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 16:02:36,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:36,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1863052375, now seen corresponding path program 1 times [2023-12-19 16:02:36,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:36,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554390446] [2023-12-19 16:02:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:36,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:38,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:38,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:38,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554390446] [2023-12-19 16:02:38,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554390446] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:38,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:38,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-19 16:02:38,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051589245] [2023-12-19 16:02:38,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:38,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-19 16:02:38,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:38,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-19 16:02:38,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2023-12-19 16:02:38,734 INFO L87 Difference]: Start difference. First operand 219 states and 314 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-19 16:02:40,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:40,887 INFO L93 Difference]: Finished difference Result 485 states and 682 transitions. [2023-12-19 16:02:40,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-19 16:02:40,888 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 135 [2023-12-19 16:02:40,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:40,889 INFO L225 Difference]: With dead ends: 485 [2023-12-19 16:02:40,889 INFO L226 Difference]: Without dead ends: 348 [2023-12-19 16:02:40,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=175, Invalid=637, Unknown=0, NotChecked=0, Total=812 [2023-12-19 16:02:40,890 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 522 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:40,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 696 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-19 16:02:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-19 16:02:40,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 200. [2023-12-19 16:02:40,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 161 states have (on average 1.3229813664596273) internal successors, (213), 161 states have internal predecessors, (213), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:40,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 285 transitions. [2023-12-19 16:02:40,913 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 285 transitions. Word has length 135 [2023-12-19 16:02:40,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:40,913 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 285 transitions. [2023-12-19 16:02:40,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 3 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-19 16:02:40,914 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 285 transitions. [2023-12-19 16:02:40,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-19 16:02:40,914 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:40,915 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:40,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 16:02:40,915 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:40,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1244922956, now seen corresponding path program 1 times [2023-12-19 16:02:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:40,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494661184] [2023-12-19 16:02:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:40,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:42,664 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:42,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:42,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494661184] [2023-12-19 16:02:42,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494661184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:42,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:42,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-19 16:02:42,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927782678] [2023-12-19 16:02:42,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:42,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-19 16:02:42,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:42,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-19 16:02:42,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-12-19 16:02:42,665 INFO L87 Difference]: Start difference. First operand 200 states and 285 transitions. Second operand has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:44,710 INFO L93 Difference]: Finished difference Result 419 states and 591 transitions. [2023-12-19 16:02:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 16:02:44,711 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2023-12-19 16:02:44,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:44,712 INFO L225 Difference]: With dead ends: 419 [2023-12-19 16:02:44,712 INFO L226 Difference]: Without dead ends: 293 [2023-12-19 16:02:44,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=236, Invalid=1024, Unknown=0, NotChecked=0, Total=1260 [2023-12-19 16:02:44,713 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 583 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:44,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 924 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-19 16:02:44,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-12-19 16:02:44,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 221. [2023-12-19 16:02:44,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 182 states have (on average 1.335164835164835) internal successors, (243), 182 states have internal predecessors, (243), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 315 transitions. [2023-12-19 16:02:44,733 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 315 transitions. Word has length 136 [2023-12-19 16:02:44,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:44,733 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 315 transitions. [2023-12-19 16:02:44,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:44,734 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 315 transitions. [2023-12-19 16:02:44,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-19 16:02:44,734 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:44,735 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:44,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 16:02:44,735 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:44,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:44,735 INFO L85 PathProgramCache]: Analyzing trace with hash 279813906, now seen corresponding path program 1 times [2023-12-19 16:02:44,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:44,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048445715] [2023-12-19 16:02:44,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:44,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:46,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:46,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:46,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048445715] [2023-12-19 16:02:46,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048445715] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:46,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:46,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-19 16:02:46,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895015901] [2023-12-19 16:02:46,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:46,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 16:02:46,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:46,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 16:02:46,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-12-19 16:02:46,014 INFO L87 Difference]: Start difference. First operand 221 states and 315 transitions. Second operand has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:46,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:46,886 INFO L93 Difference]: Finished difference Result 443 states and 622 transitions. [2023-12-19 16:02:46,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 16:02:46,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 136 [2023-12-19 16:02:46,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:46,888 INFO L225 Difference]: With dead ends: 443 [2023-12-19 16:02:46,888 INFO L226 Difference]: Without dead ends: 304 [2023-12-19 16:02:46,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2023-12-19 16:02:46,891 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 688 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:46,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 378 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-19 16:02:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-12-19 16:02:46,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 244. [2023-12-19 16:02:46,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 205 states have (on average 1.3414634146341464) internal successors, (275), 205 states have internal predecessors, (275), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:46,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 347 transitions. [2023-12-19 16:02:46,918 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 347 transitions. Word has length 136 [2023-12-19 16:02:46,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:46,918 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 347 transitions. [2023-12-19 16:02:46,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:46,918 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 347 transitions. [2023-12-19 16:02:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-12-19 16:02:46,919 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:46,919 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:46,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-19 16:02:46,920 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:46,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash 534886259, now seen corresponding path program 1 times [2023-12-19 16:02:46,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:46,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894821370] [2023-12-19 16:02:46,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:46,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:47,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:47,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894821370] [2023-12-19 16:02:47,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894821370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:47,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:47,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 16:02:47,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074628557] [2023-12-19 16:02:47,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:47,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 16:02:47,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:47,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 16:02:47,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-19 16:02:47,335 INFO L87 Difference]: Start difference. First operand 244 states and 347 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:47,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:47,695 INFO L93 Difference]: Finished difference Result 334 states and 457 transitions. [2023-12-19 16:02:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 16:02:47,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 136 [2023-12-19 16:02:47,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:47,719 INFO L225 Difference]: With dead ends: 334 [2023-12-19 16:02:47,719 INFO L226 Difference]: Without dead ends: 332 [2023-12-19 16:02:47,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2023-12-19 16:02:47,720 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 201 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:47,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 460 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 16:02:47,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-19 16:02:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 306. [2023-12-19 16:02:47,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 267 states have (on average 1.307116104868914) internal successors, (349), 267 states have internal predecessors, (349), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:47,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 421 transitions. [2023-12-19 16:02:47,742 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 421 transitions. Word has length 136 [2023-12-19 16:02:47,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:47,743 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 421 transitions. [2023-12-19 16:02:47,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 421 transitions. [2023-12-19 16:02:47,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-19 16:02:47,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:47,744 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:47,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 16:02:47,744 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:47,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:47,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1992794654, now seen corresponding path program 1 times [2023-12-19 16:02:47,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:47,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375071122] [2023-12-19 16:02:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:47,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:49,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375071122] [2023-12-19 16:02:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375071122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:02:49,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:02:49,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-19 16:02:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372480915] [2023-12-19 16:02:49,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:49,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-19 16:02:49,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:49,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-19 16:02:49,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-12-19 16:02:49,846 INFO L87 Difference]: Start difference. First operand 306 states and 421 transitions. Second operand has 20 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 20 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:51,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:51,997 INFO L93 Difference]: Finished difference Result 652 states and 883 transitions. [2023-12-19 16:02:51,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-19 16:02:51,997 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 20 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 137 [2023-12-19 16:02:51,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:51,999 INFO L225 Difference]: With dead ends: 652 [2023-12-19 16:02:51,999 INFO L226 Difference]: Without dead ends: 444 [2023-12-19 16:02:52,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=250, Invalid=1082, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 16:02:52,001 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 499 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:52,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 962 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-19 16:02:52,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-12-19 16:02:52,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 280. [2023-12-19 16:02:52,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 241 states have (on average 1.2987551867219918) internal successors, (313), 241 states have internal predecessors, (313), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:52,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 385 transitions. [2023-12-19 16:02:52,025 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 385 transitions. Word has length 137 [2023-12-19 16:02:52,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:52,025 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 385 transitions. [2023-12-19 16:02:52,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 20 states have internal predecessors, (50), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2023-12-19 16:02:52,025 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 385 transitions. [2023-12-19 16:02:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-19 16:02:52,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:52,026 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:52,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-19 16:02:52,027 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:52,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:52,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1768879630, now seen corresponding path program 1 times [2023-12-19 16:02:52,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:52,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345459441] [2023-12-19 16:02:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:52,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:02:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:02:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:02:53,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:02:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:02:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:02:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:02:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:02:53,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:02:53,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:02:53,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:02:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:02:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:02:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:02:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:02:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:02:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:02:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:02:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,320 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-19 16:02:53,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:02:53,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345459441] [2023-12-19 16:02:53,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345459441] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 16:02:53,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855585981] [2023-12-19 16:02:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:53,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 16:02:53,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 16:02:53,324 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) [2023-12-19 16:02:53,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 16:02:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:02:53,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-19 16:02:53,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 16:02:54,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:02:54,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-19 16:02:54,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:02:54,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:02:54,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-19 16:02:54,577 INFO L349 Elim1Store]: treesize reduction 43, result has 25.9 percent of original size [2023-12-19 16:02:54,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 44 [2023-12-19 16:02:54,817 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2023-12-19 16:02:54,817 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 16:02:55,247 INFO L349 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2023-12-19 16:02:55,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 254 treesize of output 229 [2023-12-19 16:02:56,074 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:02:56,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855585981] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 16:02:56,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-19 16:02:56,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [18, 10] total 28 [2023-12-19 16:02:56,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003321495] [2023-12-19 16:02:56,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:02:56,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 16:02:56,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:02:56,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 16:02:56,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2023-12-19 16:02:56,076 INFO L87 Difference]: Start difference. First operand 280 states and 385 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:57,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:02:57,226 INFO L93 Difference]: Finished difference Result 707 states and 958 transitions. [2023-12-19 16:02:57,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-19 16:02:57,227 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 137 [2023-12-19 16:02:57,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:02:57,244 INFO L225 Difference]: With dead ends: 707 [2023-12-19 16:02:57,245 INFO L226 Difference]: Without dead ends: 515 [2023-12-19 16:02:57,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=276, Invalid=1704, Unknown=0, NotChecked=0, Total=1980 [2023-12-19 16:02:57,246 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 347 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 16:02:57,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 686 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 16:02:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-12-19 16:02:57,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 364. [2023-12-19 16:02:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 325 states have (on average 1.3107692307692307) internal successors, (426), 325 states have internal predecessors, (426), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-19 16:02:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 498 transitions. [2023-12-19 16:02:57,273 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 498 transitions. Word has length 137 [2023-12-19 16:02:57,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:02:57,273 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 498 transitions. [2023-12-19 16:02:57,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:02:57,273 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 498 transitions. [2023-12-19 16:02:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-19 16:02:57,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:02:57,274 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:02:57,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 16:02:57,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-19 16:02:57,481 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:02:57,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:02:57,481 INFO L85 PathProgramCache]: Analyzing trace with hash 666150117, now seen corresponding path program 1 times [2023-12-19 16:02:57,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:02:57,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845037031] [2023-12-19 16:02:57,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:02:57,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:02:57,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:03:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:03:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:03:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:03:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:03:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:03:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:03:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:03:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:03:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:03:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:03:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:03:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:03:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:03:00,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:03:00,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:03:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:03:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:03:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:00,937 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:03:00,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:03:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845037031] [2023-12-19 16:03:00,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845037031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:03:00,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:03:00,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2023-12-19 16:03:00,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429691756] [2023-12-19 16:03:00,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:03:00,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-19 16:03:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:03:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-19 16:03:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-12-19 16:03:00,939 INFO L87 Difference]: Start difference. First operand 364 states and 498 transitions. Second operand has 20 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 20 states have internal predecessors, (51), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-19 16:03:05,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:03:05,708 INFO L93 Difference]: Finished difference Result 976 states and 1309 transitions. [2023-12-19 16:03:05,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-19 16:03:05,709 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 20 states have internal predecessors, (51), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) Word has length 138 [2023-12-19 16:03:05,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:03:05,711 INFO L225 Difference]: With dead ends: 976 [2023-12-19 16:03:05,711 INFO L226 Difference]: Without dead ends: 716 [2023-12-19 16:03:05,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=365, Invalid=1357, Unknown=0, NotChecked=0, Total=1722 [2023-12-19 16:03:05,714 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 548 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 1830 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-19 16:03:05,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1311 Invalid, 1881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1830 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-19 16:03:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2023-12-19 16:03:05,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 581. [2023-12-19 16:03:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 523 states have (on average 1.3097514340344167) internal successors, (685), 523 states have internal predecessors, (685), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 16:03:05,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 793 transitions. [2023-12-19 16:03:05,757 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 793 transitions. Word has length 138 [2023-12-19 16:03:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:03:05,757 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 793 transitions. [2023-12-19 16:03:05,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 2.8333333333333335) internal successors, (51), 20 states have internal predecessors, (51), 5 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 3 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-19 16:03:05,757 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 793 transitions. [2023-12-19 16:03:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-19 16:03:05,758 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:03:05,758 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:03:05,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-19 16:03:05,759 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:03:05,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:03:05,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1811419388, now seen corresponding path program 1 times [2023-12-19 16:03:05,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:03:05,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501182512] [2023-12-19 16:03:05,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:03:05,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:03:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 16:03:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 16:03:06,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-19 16:03:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 16:03:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-19 16:03:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 16:03:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-19 16:03:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 16:03:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 16:03:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 16:03:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 16:03:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-19 16:03:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-19 16:03:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-19 16:03:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-19 16:03:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-19 16:03:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-19 16:03:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-19 16:03:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:03:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-12-19 16:03:06,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 16:03:06,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501182512] [2023-12-19 16:03:06,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501182512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 16:03:06,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 16:03:06,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 16:03:06,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422594974] [2023-12-19 16:03:06,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 16:03:06,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 16:03:06,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 16:03:06,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 16:03:06,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 16:03:06,080 INFO L87 Difference]: Start difference. First operand 581 states and 793 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:03:06,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 16:03:06,414 INFO L93 Difference]: Finished difference Result 1317 states and 1786 transitions. [2023-12-19 16:03:06,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 16:03:06,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 138 [2023-12-19 16:03:06,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 16:03:06,417 INFO L225 Difference]: With dead ends: 1317 [2023-12-19 16:03:06,417 INFO L226 Difference]: Without dead ends: 860 [2023-12-19 16:03:06,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-12-19 16:03:06,418 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 190 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 16:03:06,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 388 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 16:03:06,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2023-12-19 16:03:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 718. [2023-12-19 16:03:06,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 660 states have (on average 1.312121212121212) internal successors, (866), 660 states have internal predecessors, (866), 54 states have call successors, (54), 3 states have call predecessors, (54), 3 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-19 16:03:06,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 974 transitions. [2023-12-19 16:03:06,461 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 974 transitions. Word has length 138 [2023-12-19 16:03:06,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 16:03:06,461 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 974 transitions. [2023-12-19 16:03:06,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2023-12-19 16:03:06,461 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 974 transitions. [2023-12-19 16:03:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-19 16:03:06,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 16:03:06,462 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:03:06,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-19 16:03:06,462 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 16:03:06,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 16:03:06,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1179128960, now seen corresponding path program 1 times [2023-12-19 16:03:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 16:03:06,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357037633] [2023-12-19 16:03:06,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 16:03:06,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 16:03:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 16:04:37,063 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:04:45,129 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:04:53,191 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:05,329 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:19,675 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:25,249 WARN L293 SmtUtils]: Spent 5.57s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:35,540 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:43,625 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:51,692 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:05:57,389 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:06:10,072 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:06:25,670 WARN L293 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:06:40,143 WARN L293 SmtUtils]: Spent 6.95s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:06:48,218 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:06:56,292 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:04,363 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:09,887 WARN L293 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:17,946 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:24,481 WARN L293 SmtUtils]: Spent 6.15s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:30,972 WARN L293 SmtUtils]: Spent 6.49s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:36,451 WARN L293 SmtUtils]: Spent 5.48s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:44,529 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:07:55,572 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:08:00,727 WARN L293 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:08:08,790 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:08:22,906 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:08:29,639 WARN L293 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:08:42,633 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:08:53,134 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:09:01,205 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:09:07,688 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:09:24,630 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:09:32,695 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:09:40,764 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:08,743 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:15,387 WARN L293 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:23,470 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:29,602 WARN L293 SmtUtils]: Spent 6.13s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:37,684 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:42,882 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:10:50,958 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:11:03,930 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:11:29,310 WARN L293 SmtUtils]: Spent 5.36s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:11:37,376 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:11:44,445 WARN L293 SmtUtils]: Spent 5.41s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:11:52,518 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:01,677 WARN L293 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:07,388 WARN L293 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:15,466 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:27,735 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:35,807 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:43,895 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:12:52,000 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:13:00,083 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:13:07,478 WARN L293 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:13:21,718 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:13:29,808 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:13:43,812 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:13:56,207 WARN L293 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:04,286 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:12,355 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:20,427 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:28,046 WARN L293 SmtUtils]: Spent 7.61s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:39,295 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:51,672 WARN L293 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:14:59,902 WARN L293 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:15:05,251 WARN L293 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 39 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:15:21,147 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:15:33,504 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:15:44,513 WARN L293 SmtUtils]: Spent 6.92s on a formula simplification that was a NOOP. DAG size: 39 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:15:52,592 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 35 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:16:00,678 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:16:08,768 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-19 16:16:20,272 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 41 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-19 16:16:29,574 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-19 16:16:30,775 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-19 16:16:30,789 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 16:16:30,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-19 16:16:30,790 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 140 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while executing Executor. [2023-12-19 16:16:30,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-19 16:16:30,797 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 16:16:30,799 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 16:16:30,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:16:30 BoogieIcfgContainer [2023-12-19 16:16:30,801 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 16:16:30,801 INFO L158 Benchmark]: Toolchain (without parser) took 854209.70ms. Allocated memory was 287.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 242.5MB in the beginning and 745.1MB in the end (delta: -502.7MB). Peak memory consumption was 948.0MB. Max. memory is 8.0GB. [2023-12-19 16:16:30,801 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 16:16:30,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.30ms. Allocated memory is still 287.3MB. Free memory was 242.2MB in the beginning and 226.4MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 16:16:30,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.65ms. Allocated memory is still 287.3MB. Free memory was 226.4MB in the beginning and 222.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 16:16:30,801 INFO L158 Benchmark]: Boogie Preprocessor took 79.70ms. Allocated memory is still 287.3MB. Free memory was 222.2MB in the beginning and 218.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 16:16:30,802 INFO L158 Benchmark]: RCFGBuilder took 554.16ms. Allocated memory is still 287.3MB. Free memory was 218.0MB in the beginning and 242.0MB in the end (delta: -24.0MB). Peak memory consumption was 27.7MB. Max. memory is 8.0GB. [2023-12-19 16:16:30,802 INFO L158 Benchmark]: TraceAbstraction took 853301.88ms. Allocated memory was 287.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 241.5MB in the beginning and 745.1MB in the end (delta: -503.7MB). Peak memory consumption was 945.4MB. Max. memory is 8.0GB. [2023-12-19 16:16:30,802 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 221.2MB. Free memory is still 170.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 208.30ms. Allocated memory is still 287.3MB. Free memory was 242.2MB in the beginning and 226.4MB in the end (delta: 15.8MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.65ms. Allocated memory is still 287.3MB. Free memory was 226.4MB in the beginning and 222.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 79.70ms. Allocated memory is still 287.3MB. Free memory was 222.2MB in the beginning and 218.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 554.16ms. Allocated memory is still 287.3MB. Free memory was 218.0MB in the beginning and 242.0MB in the end (delta: -24.0MB). Peak memory consumption was 27.7MB. Max. memory is 8.0GB. * TraceAbstraction took 853301.88ms. Allocated memory was 287.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 241.5MB in the beginning and 745.1MB in the end (delta: -503.7MB). Peak memory consumption was 945.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 140 with TraceHistMax 18,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 853.3s, OverallIterations: 17, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6005 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5996 mSDsluCounter, 10775 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8995 mSDsCounter, 358 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14016 IncrementalHoareTripleChecker+Invalid, 14374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 358 mSolverCounterUnsat, 1780 mSDtfsCounter, 14016 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1307 GetRequests, 951 SyntacticMatches, 5 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1973 ImplicationChecksByTransitivity, 13.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=718occurred in iteration=16, InterpolantAutomatonStates: 231, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 1702 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 25.4s InterpolantComputationTime, 2280 NumberOfCodeBlocks, 2280 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2399 ConstructedInterpolants, 12 QuantifiedInterpolants, 41239 SizeOfPredicates, 21 NumberOfNonLiveVariables, 448 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 10941/11016 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown