/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:29:37,634 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:29:37,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 04:29:37,704 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:29:37,704 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:29:37,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:29:37,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:29:37,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:29:37,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:29:37,731 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:29:37,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:29:37,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:29:37,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:29:37,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:29:37,733 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:29:37,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:29:37,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:29:37,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:29:37,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:29:37,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:29:37,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:29:37,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:29:37,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:29:37,735 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:29:37,735 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:29:37,735 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:29:37,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:29:37,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:29:37,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:29:37,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:29:37,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:29:37,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:29:37,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:29:37,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:29:37,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:29:37,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:29:37,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:29:37,738 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:29:37,738 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:29:37,738 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:29:37,738 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:29:37,738 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:29:37,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:29:37,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:29:37,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:29:37,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:29:37,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:29:37,949 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:29:37,949 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:29:37,950 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2023-12-16 04:29:39,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:29:39,168 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:29:39,169 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-71.i [2023-12-16 04:29:39,176 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaccb6105/b5b3e822e1ea4bebb70969e4b27686f6/FLAG65c268486 [2023-12-16 04:29:39,186 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aaccb6105/b5b3e822e1ea4bebb70969e4b27686f6 [2023-12-16 04:29:39,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:29:39,189 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:29:39,190 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:29:39,190 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:29:39,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:29:39,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a629f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39, skipping insertion in model container [2023-12-16 04:29:39,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,225 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:29:39,344 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-s_file-71.i[916,929] [2023-12-16 04:29:39,407 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:29:39,416 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:29:39,426 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-s_file-71.i[916,929] [2023-12-16 04:29:39,473 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:29:39,493 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:29:39,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39 WrapperNode [2023-12-16 04:29:39,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:29:39,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:29:39,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:29:39,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:29:39,499 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,522 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,560 INFO L138 Inliner]: procedures = 26, calls = 169, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 487 [2023-12-16 04:29:39,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:29:39,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:29:39,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:29:39,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:29:39,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,598 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,623 INFO L175 MemorySlicer]: Split 138 memory accesses to 2 slices as follows [2, 136]. 99 percent of accesses are in the largest equivalence class. The 16 initializations are split as follows [2, 14]. The 18 writes are split as follows [0, 18]. [2023-12-16 04:29:39,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:29:39,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:29:39,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:29:39,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:29:39,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (1/1) ... [2023-12-16 04:29:39,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:29:39,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:39,701 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) [2023-12-16 04:29:39,719 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 [2023-12-16 04:29:39,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:29:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:29:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:29:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:29:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:29:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:29:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:29:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:29:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:29:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:29:39,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:29:39,808 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:29:39,809 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:29:40,206 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:29:40,224 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:29:40,224 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:29:40,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:29:40 BoogieIcfgContainer [2023-12-16 04:29:40,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:29:40,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:29:40,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:29:40,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:29:40,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:29:39" (1/3) ... [2023-12-16 04:29:40,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcea32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:29:40, skipping insertion in model container [2023-12-16 04:29:40,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:39" (2/3) ... [2023-12-16 04:29:40,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bcea32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:29:40, skipping insertion in model container [2023-12-16 04:29:40,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:29:40" (3/3) ... [2023-12-16 04:29:40,231 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-71.i [2023-12-16 04:29:40,243 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:29:40,244 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:29:40,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:29:40,292 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;@386e5353, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:29:40,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:29:40,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:29:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:29:40,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:40,308 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:40,309 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:40,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:40,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1183335138, now seen corresponding path program 1 times [2023-12-16 04:29:40,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:40,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052348688] [2023-12-16 04:29:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:40,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:40,636 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:40,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:40,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052348688] [2023-12-16 04:29:40,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052348688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:40,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:40,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:29:40,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053565312] [2023-12-16 04:29:40,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:40,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:29:40,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:40,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:29:40,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:29:40,663 INFO L87 Difference]: Start difference. First operand has 98 states, 76 states have (on average 1.4210526315789473) internal successors, (108), 77 states have internal predecessors, (108), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:40,693 INFO L93 Difference]: Finished difference Result 193 states and 309 transitions. [2023-12-16 04:29:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:29:40,696 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-16 04:29:40,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:40,701 INFO L225 Difference]: With dead ends: 193 [2023-12-16 04:29:40,701 INFO L226 Difference]: Without dead ends: 96 [2023-12-16 04:29:40,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:29:40,707 INFO L413 NwaCegarLoop]: 135 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, 135 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 [2023-12-16 04:29:40,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:29:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-16 04:29:40,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2023-12-16 04:29:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 75 states have internal predecessors, (101), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:29:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 139 transitions. [2023-12-16 04:29:40,744 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 139 transitions. Word has length 139 [2023-12-16 04:29:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:40,744 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 139 transitions. [2023-12-16 04:29:40,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:40,745 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 139 transitions. [2023-12-16 04:29:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:29:40,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:40,748 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:40,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:29:40,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:40,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:40,748 INFO L85 PathProgramCache]: Analyzing trace with hash 632234308, now seen corresponding path program 1 times [2023-12-16 04:29:40,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:40,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849211803] [2023-12-16 04:29:40,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:40,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,063 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:41,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:41,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849211803] [2023-12-16 04:29:41,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849211803] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:41,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:41,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:29:41,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743345386] [2023-12-16 04:29:41,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:41,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:29:41,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:41,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:29:41,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:29:41,071 INFO L87 Difference]: Start difference. First operand 96 states and 139 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:29:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:41,143 INFO L93 Difference]: Finished difference Result 199 states and 288 transitions. [2023-12-16 04:29:41,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:29:41,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-16 04:29:41,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:41,148 INFO L225 Difference]: With dead ends: 199 [2023-12-16 04:29:41,148 INFO L226 Difference]: Without dead ends: 104 [2023-12-16 04:29:41,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:29:41,151 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 12 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:41,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 393 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:29:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-12-16 04:29:41,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2023-12-16 04:29:41,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 77 states have internal predecessors, (103), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:29:41,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 141 transitions. [2023-12-16 04:29:41,167 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 141 transitions. Word has length 139 [2023-12-16 04:29:41,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:41,168 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 141 transitions. [2023-12-16 04:29:41,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:29:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 141 transitions. [2023-12-16 04:29:41,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:29:41,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:41,170 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:41,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:29:41,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:41,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:41,170 INFO L85 PathProgramCache]: Analyzing trace with hash 689492610, now seen corresponding path program 1 times [2023-12-16 04:29:41,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:41,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001107345] [2023-12-16 04:29:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:41,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:41,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:41,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001107345] [2023-12-16 04:29:41,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001107345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:41,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:41,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:29:41,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041308535] [2023-12-16 04:29:41,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:41,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:29:41,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:41,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:29:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:29:41,349 INFO L87 Difference]: Start difference. First operand 98 states and 141 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:29:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:41,391 INFO L93 Difference]: Finished difference Result 199 states and 286 transitions. [2023-12-16 04:29:41,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:29:41,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2023-12-16 04:29:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:41,396 INFO L225 Difference]: With dead ends: 199 [2023-12-16 04:29:41,396 INFO L226 Difference]: Without dead ends: 102 [2023-12-16 04:29:41,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:29:41,397 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 3 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:41,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 394 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:29:41,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2023-12-16 04:29:41,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100. [2023-12-16 04:29:41,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 79 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-16 04:29:41,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 143 transitions. [2023-12-16 04:29:41,405 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 143 transitions. Word has length 139 [2023-12-16 04:29:41,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:41,405 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 143 transitions. [2023-12-16 04:29:41,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:29:41,406 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2023-12-16 04:29:41,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-12-16 04:29:41,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:41,410 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:41,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 04:29:41,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:41,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:41,412 INFO L85 PathProgramCache]: Analyzing trace with hash 689552192, now seen corresponding path program 1 times [2023-12-16 04:29:41,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:41,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454061896] [2023-12-16 04:29:41,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:41,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:41,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:41,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:42,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:42,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:42,007 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:42,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:42,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454061896] [2023-12-16 04:29:42,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454061896] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:42,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:42,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:29:42,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892413706] [2023-12-16 04:29:42,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:42,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:29:42,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:42,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:29:42,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:29:42,009 INFO L87 Difference]: Start difference. First operand 100 states and 143 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:42,379 INFO L93 Difference]: Finished difference Result 271 states and 385 transitions. [2023-12-16 04:29:42,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:29:42,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 139 [2023-12-16 04:29:42,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:42,381 INFO L225 Difference]: With dead ends: 271 [2023-12-16 04:29:42,381 INFO L226 Difference]: Without dead ends: 172 [2023-12-16 04:29:42,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:29:42,382 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 107 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:42,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 470 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:29:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-16 04:29:42,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2023-12-16 04:29:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 138 states have internal predecessors, (182), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 04:29:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 240 transitions. [2023-12-16 04:29:42,395 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 240 transitions. Word has length 139 [2023-12-16 04:29:42,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:42,395 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 240 transitions. [2023-12-16 04:29:42,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 240 transitions. [2023-12-16 04:29:42,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-12-16 04:29:42,401 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:42,401 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:42,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 04:29:42,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:42,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1419147393, now seen corresponding path program 1 times [2023-12-16 04:29:42,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:42,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142050695] [2023-12-16 04:29:42,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:42,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:43,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:43,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:43,203 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:43,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:43,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142050695] [2023-12-16 04:29:43,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142050695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:43,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:43,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:29:43,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984085211] [2023-12-16 04:29:43,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:43,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:29:43,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:43,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:29:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:29:43,206 INFO L87 Difference]: Start difference. First operand 169 states and 240 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:43,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:43,653 INFO L93 Difference]: Finished difference Result 475 states and 670 transitions. [2023-12-16 04:29:43,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:29:43,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 140 [2023-12-16 04:29:43,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:43,657 INFO L225 Difference]: With dead ends: 475 [2023-12-16 04:29:43,657 INFO L226 Difference]: Without dead ends: 307 [2023-12-16 04:29:43,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:29:43,659 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 218 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:43,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 583 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:29:43,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-16 04:29:43,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 178. [2023-12-16 04:29:43,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 146 states have (on average 1.3424657534246576) internal successors, (196), 147 states have internal predecessors, (196), 29 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-16 04:29:43,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 254 transitions. [2023-12-16 04:29:43,689 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 254 transitions. Word has length 140 [2023-12-16 04:29:43,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:43,690 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 254 transitions. [2023-12-16 04:29:43,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:43,690 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 254 transitions. [2023-12-16 04:29:43,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 04:29:43,691 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:43,692 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:43,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 04:29:43,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:43,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:43,692 INFO L85 PathProgramCache]: Analyzing trace with hash 2017300935, now seen corresponding path program 1 times [2023-12-16 04:29:43,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:43,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957820890] [2023-12-16 04:29:43,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:43,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:44,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:44,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:44,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:44,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:44,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:44,692 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:44,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:44,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957820890] [2023-12-16 04:29:44,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957820890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:44,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:44,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:29:44,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387924810] [2023-12-16 04:29:44,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:44,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:29:44,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:44,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:29:44,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:29:44,693 INFO L87 Difference]: Start difference. First operand 178 states and 254 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:45,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:45,165 INFO L93 Difference]: Finished difference Result 431 states and 608 transitions. [2023-12-16 04:29:45,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:29:45,166 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2023-12-16 04:29:45,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:45,167 INFO L225 Difference]: With dead ends: 431 [2023-12-16 04:29:45,167 INFO L226 Difference]: Without dead ends: 254 [2023-12-16 04:29:45,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:29:45,168 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 134 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:45,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 932 Invalid, 547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:29:45,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-16 04:29:45,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 231. [2023-12-16 04:29:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 192 states have (on average 1.328125) internal successors, (255), 194 states have internal predecessors, (255), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 04:29:45,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 325 transitions. [2023-12-16 04:29:45,181 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 325 transitions. Word has length 141 [2023-12-16 04:29:45,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:45,181 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 325 transitions. [2023-12-16 04:29:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 325 transitions. [2023-12-16 04:29:45,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 04:29:45,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:45,183 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:45,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 04:29:45,183 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:45,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:45,183 INFO L85 PathProgramCache]: Analyzing trace with hash 2005029732, now seen corresponding path program 1 times [2023-12-16 04:29:45,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:45,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063838672] [2023-12-16 04:29:45,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:45,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:45,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:45,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:45,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:46,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:46,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:46,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:46,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:46,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063838672] [2023-12-16 04:29:46,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063838672] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:46,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:46,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:29:46,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604785310] [2023-12-16 04:29:46,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:46,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:29:46,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:46,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:29:46,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:29:46,011 INFO L87 Difference]: Start difference. First operand 231 states and 325 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:46,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:46,249 INFO L93 Difference]: Finished difference Result 578 states and 810 transitions. [2023-12-16 04:29:46,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:29:46,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 141 [2023-12-16 04:29:46,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:46,251 INFO L225 Difference]: With dead ends: 578 [2023-12-16 04:29:46,251 INFO L226 Difference]: Without dead ends: 348 [2023-12-16 04:29:46,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:29:46,254 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 112 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:46,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 442 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:29:46,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-16 04:29:46,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 241. [2023-12-16 04:29:46,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 202 states have (on average 1.3267326732673268) internal successors, (268), 204 states have internal predecessors, (268), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 04:29:46,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 338 transitions. [2023-12-16 04:29:46,271 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 338 transitions. Word has length 141 [2023-12-16 04:29:46,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:46,271 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 338 transitions. [2023-12-16 04:29:46,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:29:46,272 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 338 transitions. [2023-12-16 04:29:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:29:46,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:46,273 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:46,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 04:29:46,273 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:46,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:46,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1216347448, now seen corresponding path program 1 times [2023-12-16 04:29:46,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45717979] [2023-12-16 04:29:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:47,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:47,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:47,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:47,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:47,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45717979] [2023-12-16 04:29:47,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45717979] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:47,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:47,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:29:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223867118] [2023-12-16 04:29:47,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:47,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:29:47,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:47,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:29:47,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:29:47,161 INFO L87 Difference]: Start difference. First operand 241 states and 338 transitions. Second operand has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:29:47,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:47,867 INFO L93 Difference]: Finished difference Result 673 states and 931 transitions. [2023-12-16 04:29:47,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:29:47,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-16 04:29:47,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:47,871 INFO L225 Difference]: With dead ends: 673 [2023-12-16 04:29:47,871 INFO L226 Difference]: Without dead ends: 433 [2023-12-16 04:29:47,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:29:47,872 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 265 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:47,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 657 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:29:47,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2023-12-16 04:29:47,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 339. [2023-12-16 04:29:47,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 282 states have (on average 1.3085106382978724) internal successors, (369), 286 states have internal predecessors, (369), 51 states have call successors, (51), 5 states have call predecessors, (51), 5 states have return successors, (51), 47 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-16 04:29:47,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 471 transitions. [2023-12-16 04:29:47,894 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 471 transitions. Word has length 142 [2023-12-16 04:29:47,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:47,895 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 471 transitions. [2023-12-16 04:29:47,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:29:47,895 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 471 transitions. [2023-12-16 04:29:47,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:29:47,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:47,896 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:47,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 04:29:47,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:47,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:47,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1636853817, now seen corresponding path program 1 times [2023-12-16 04:29:47,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:47,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914519750] [2023-12-16 04:29:47,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:47,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:49,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:49,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:49,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:49,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914519750] [2023-12-16 04:29:49,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914519750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:49,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:49,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 04:29:49,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364595811] [2023-12-16 04:29:49,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:49,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 04:29:49,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:49,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 04:29:49,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:29:49,102 INFO L87 Difference]: Start difference. First operand 339 states and 471 transitions. Second operand has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:29:49,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:49,645 INFO L93 Difference]: Finished difference Result 827 states and 1140 transitions. [2023-12-16 04:29:49,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-16 04:29:49,646 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 142 [2023-12-16 04:29:49,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:49,648 INFO L225 Difference]: With dead ends: 827 [2023-12-16 04:29:49,648 INFO L226 Difference]: Without dead ends: 489 [2023-12-16 04:29:49,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:29:49,651 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 141 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:49,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 940 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:29:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-16 04:29:49,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 445. [2023-12-16 04:29:49,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 378 states have (on average 1.3042328042328042) internal successors, (493), 384 states have internal predecessors, (493), 59 states have call successors, (59), 7 states have call predecessors, (59), 7 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:29:49,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 611 transitions. [2023-12-16 04:29:49,683 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 611 transitions. Word has length 142 [2023-12-16 04:29:49,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:49,683 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 611 transitions. [2023-12-16 04:29:49,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.25) internal successors, (50), 10 states have internal predecessors, (50), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:29:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 611 transitions. [2023-12-16 04:29:49,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:29:49,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:49,684 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:49,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 04:29:49,685 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:49,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:49,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1646996229, now seen corresponding path program 1 times [2023-12-16 04:29:49,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:49,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797469737] [2023-12-16 04:29:49,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:49,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:50,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797469737] [2023-12-16 04:29:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797469737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:50,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:50,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:29:50,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13068164] [2023-12-16 04:29:50,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:50,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:29:50,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:50,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:29:50,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:29:50,971 INFO L87 Difference]: Start difference. First operand 445 states and 611 transitions. Second operand has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-16 04:29:51,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:51,571 INFO L93 Difference]: Finished difference Result 1020 states and 1388 transitions. [2023-12-16 04:29:51,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:29:51,572 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2023-12-16 04:29:51,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:51,574 INFO L225 Difference]: With dead ends: 1020 [2023-12-16 04:29:51,574 INFO L226 Difference]: Without dead ends: 576 [2023-12-16 04:29:51,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:29:51,575 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 109 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:51,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 758 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:29:51,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-12-16 04:29:51,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 453. [2023-12-16 04:29:51,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 381 states have (on average 1.2913385826771653) internal successors, (492), 388 states have internal predecessors, (492), 61 states have call successors, (61), 10 states have call predecessors, (61), 10 states have return successors, (61), 54 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-16 04:29:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 614 transitions. [2023-12-16 04:29:51,611 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 614 transitions. Word has length 142 [2023-12-16 04:29:51,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:51,612 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 614 transitions. [2023-12-16 04:29:51,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-16 04:29:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 614 transitions. [2023-12-16 04:29:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:29:51,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:51,613 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:51,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 04:29:51,613 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:51,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:51,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1770867323, now seen corresponding path program 1 times [2023-12-16 04:29:51,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:51,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055594270] [2023-12-16 04:29:51,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:51,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:53,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:53,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:53,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:53,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:53,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:53,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055594270] [2023-12-16 04:29:53,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055594270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:53,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:53,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:29:53,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522697857] [2023-12-16 04:29:53,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:53,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:29:53,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:53,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:29:53,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:29:53,392 INFO L87 Difference]: Start difference. First operand 453 states and 614 transitions. Second operand has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-16 04:29:57,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-16 04:29:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:57,778 INFO L93 Difference]: Finished difference Result 992 states and 1334 transitions. [2023-12-16 04:29:57,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:29:57,779 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2023-12-16 04:29:57,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:57,781 INFO L225 Difference]: With dead ends: 992 [2023-12-16 04:29:57,781 INFO L226 Difference]: Without dead ends: 548 [2023-12-16 04:29:57,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:29:57,782 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 183 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:57,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 797 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-16 04:29:57,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-16 04:29:57,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 465. [2023-12-16 04:29:57,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 394 states have (on average 1.2893401015228427) internal successors, (508), 400 states have internal predecessors, (508), 59 states have call successors, (59), 11 states have call predecessors, (59), 11 states have return successors, (59), 53 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-16 04:29:57,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 626 transitions. [2023-12-16 04:29:57,809 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 626 transitions. Word has length 142 [2023-12-16 04:29:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:57,809 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 626 transitions. [2023-12-16 04:29:57,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.555555555555555) internal successors, (50), 12 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-16 04:29:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 626 transitions. [2023-12-16 04:29:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:29:57,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:57,811 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:57,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 04:29:57,812 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:57,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:57,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1512982723, now seen corresponding path program 1 times [2023-12-16 04:29:57,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:57,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348541656] [2023-12-16 04:29:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:57,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:58,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:58,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348541656] [2023-12-16 04:29:58,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348541656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:58,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:58,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 04:29:58,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363287311] [2023-12-16 04:29:58,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:58,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 04:29:58,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:58,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 04:29:58,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:29:58,071 INFO L87 Difference]: Start difference. First operand 465 states and 626 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:29:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:58,390 INFO L93 Difference]: Finished difference Result 1059 states and 1422 transitions. [2023-12-16 04:29:58,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:29:58,390 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 142 [2023-12-16 04:29:58,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:58,394 INFO L225 Difference]: With dead ends: 1059 [2023-12-16 04:29:58,394 INFO L226 Difference]: Without dead ends: 595 [2023-12-16 04:29:58,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:29:58,396 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 191 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:58,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 950 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:29:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2023-12-16 04:29:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 543. [2023-12-16 04:29:58,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 442 states have (on average 1.257918552036199) internal successors, (556), 449 states have internal predecessors, (556), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 04:29:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 724 transitions. [2023-12-16 04:29:58,431 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 724 transitions. Word has length 142 [2023-12-16 04:29:58,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:58,431 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 724 transitions. [2023-12-16 04:29:58,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:29:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 724 transitions. [2023-12-16 04:29:58,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-16 04:29:58,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:58,432 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:29:58,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 04:29:58,432 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:58,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -953218873, now seen corresponding path program 1 times [2023-12-16 04:29:58,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:58,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749661681] [2023-12-16 04:29:58,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:29:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:29:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:29:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:29:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:29:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:29:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:29:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:29:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:29:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:29:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:29:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:29:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:29:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:29:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:29:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:29:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:29:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:29:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:29:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:29:59,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:59,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749661681] [2023-12-16 04:29:59,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749661681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:59,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:59,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:29:59,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406208585] [2023-12-16 04:29:59,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:59,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:29:59,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:59,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:29:59,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:29:59,535 INFO L87 Difference]: Start difference. First operand 543 states and 724 transitions. Second operand has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-16 04:30:00,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:00,217 INFO L93 Difference]: Finished difference Result 1139 states and 1519 transitions. [2023-12-16 04:30:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:30:00,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) Word has length 142 [2023-12-16 04:30:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:00,225 INFO L225 Difference]: With dead ends: 1139 [2023-12-16 04:30:00,225 INFO L226 Difference]: Without dead ends: 609 [2023-12-16 04:30:00,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:30:00,227 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 106 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:00,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 947 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 04:30:00,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-12-16 04:30:00,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 523. [2023-12-16 04:30:00,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 422 states have (on average 1.2535545023696681) internal successors, (529), 429 states have internal predecessors, (529), 84 states have call successors, (84), 16 states have call predecessors, (84), 16 states have return successors, (84), 77 states have call predecessors, (84), 84 states have call successors, (84) [2023-12-16 04:30:00,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 697 transitions. [2023-12-16 04:30:00,261 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 697 transitions. Word has length 142 [2023-12-16 04:30:00,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:00,261 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 697 transitions. [2023-12-16 04:30:00,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.25) internal successors, (50), 11 states have internal predecessors, (50), 4 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 4 states have call successors, (19) [2023-12-16 04:30:00,262 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 697 transitions. [2023-12-16 04:30:00,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:30:00,263 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:00,263 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:00,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 04:30:00,263 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:00,264 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:00,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1115076427, now seen corresponding path program 1 times [2023-12-16 04:30:00,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:00,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037044408] [2023-12-16 04:30:00,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:00,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:00,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:00,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037044408] [2023-12-16 04:30:00,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037044408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:00,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:00,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:30:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434728605] [2023-12-16 04:30:00,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:00,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:30:00,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:00,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:30:00,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:30:00,396 INFO L87 Difference]: Start difference. First operand 523 states and 697 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:30:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:00,728 INFO L93 Difference]: Finished difference Result 1360 states and 1817 transitions. [2023-12-16 04:30:00,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:30:00,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 143 [2023-12-16 04:30:00,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:00,732 INFO L225 Difference]: With dead ends: 1360 [2023-12-16 04:30:00,732 INFO L226 Difference]: Without dead ends: 850 [2023-12-16 04:30:00,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:00,735 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 164 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:00,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 366 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:00,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2023-12-16 04:30:00,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 589. [2023-12-16 04:30:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 471 states have (on average 1.2441613588110403) internal successors, (586), 479 states have internal predecessors, (586), 98 states have call successors, (98), 19 states have call predecessors, (98), 19 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 04:30:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 782 transitions. [2023-12-16 04:30:00,789 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 782 transitions. Word has length 143 [2023-12-16 04:30:00,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:00,789 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 782 transitions. [2023-12-16 04:30:00,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2023-12-16 04:30:00,790 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 782 transitions. [2023-12-16 04:30:00,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:30:00,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:00,791 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:00,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 04:30:00,792 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:00,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:00,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1958049677, now seen corresponding path program 1 times [2023-12-16 04:30:00,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:00,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462452138] [2023-12-16 04:30:00,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:00,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:01,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:01,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:01,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462452138] [2023-12-16 04:30:01,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462452138] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:01,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:01,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:01,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639236946] [2023-12-16 04:30:01,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:01,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:01,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:01,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:01,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:01,197 INFO L87 Difference]: Start difference. First operand 589 states and 782 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:01,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:01,596 INFO L93 Difference]: Finished difference Result 1187 states and 1575 transitions. [2023-12-16 04:30:01,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 04:30:01,596 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2023-12-16 04:30:01,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:01,599 INFO L225 Difference]: With dead ends: 1187 [2023-12-16 04:30:01,599 INFO L226 Difference]: Without dead ends: 623 [2023-12-16 04:30:01,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:30:01,601 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 130 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:01,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 446 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:01,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-16 04:30:01,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 552. [2023-12-16 04:30:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 441 states have (on average 1.2426303854875282) internal successors, (548), 448 states have internal predecessors, (548), 92 states have call successors, (92), 18 states have call predecessors, (92), 18 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 04:30:01,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 732 transitions. [2023-12-16 04:30:01,636 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 732 transitions. Word has length 143 [2023-12-16 04:30:01,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:01,637 INFO L495 AbstractCegarLoop]: Abstraction has 552 states and 732 transitions. [2023-12-16 04:30:01,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:01,637 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 732 transitions. [2023-12-16 04:30:01,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:30:01,638 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:01,639 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:01,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 04:30:01,639 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:01,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:01,639 INFO L85 PathProgramCache]: Analyzing trace with hash 936981323, now seen corresponding path program 1 times [2023-12-16 04:30:01,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:01,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058869436] [2023-12-16 04:30:01,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:01,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:02,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:02,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:02,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:02,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058869436] [2023-12-16 04:30:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058869436] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:02,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:02,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:02,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580746036] [2023-12-16 04:30:02,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:02,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:02,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:02,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:02,051 INFO L87 Difference]: Start difference. First operand 552 states and 732 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:02,353 INFO L93 Difference]: Finished difference Result 1098 states and 1453 transitions. [2023-12-16 04:30:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:30:02,354 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2023-12-16 04:30:02,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:02,356 INFO L225 Difference]: With dead ends: 1098 [2023-12-16 04:30:02,356 INFO L226 Difference]: Without dead ends: 571 [2023-12-16 04:30:02,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:02,357 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 90 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:02,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 609 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:30:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-16 04:30:02,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 549. [2023-12-16 04:30:02,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 437 states have (on average 1.2356979405034325) internal successors, (540), 444 states have internal predecessors, (540), 92 states have call successors, (92), 19 states have call predecessors, (92), 19 states have return successors, (92), 85 states have call predecessors, (92), 92 states have call successors, (92) [2023-12-16 04:30:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 724 transitions. [2023-12-16 04:30:02,388 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 724 transitions. Word has length 143 [2023-12-16 04:30:02,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:02,388 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 724 transitions. [2023-12-16 04:30:02,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 724 transitions. [2023-12-16 04:30:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-16 04:30:02,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:02,389 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:02,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 04:30:02,390 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:02,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:02,390 INFO L85 PathProgramCache]: Analyzing trace with hash -262064816, now seen corresponding path program 1 times [2023-12-16 04:30:02,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:02,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74851495] [2023-12-16 04:30:02,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:02,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:03,140 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:03,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:03,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74851495] [2023-12-16 04:30:03,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74851495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:03,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:03,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:30:03,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275408204] [2023-12-16 04:30:03,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:03,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:30:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:03,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:30:03,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:30:03,142 INFO L87 Difference]: Start difference. First operand 549 states and 724 transitions. Second operand has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:04,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:04,025 INFO L93 Difference]: Finished difference Result 1291 states and 1715 transitions. [2023-12-16 04:30:04,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:30:04,026 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 143 [2023-12-16 04:30:04,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:04,028 INFO L225 Difference]: With dead ends: 1291 [2023-12-16 04:30:04,028 INFO L226 Difference]: Without dead ends: 767 [2023-12-16 04:30:04,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:30:04,030 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 192 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:04,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1189 Invalid, 950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 04:30:04,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2023-12-16 04:30:04,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 679. [2023-12-16 04:30:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 553 states have (on average 1.2567811934900543) internal successors, (695), 562 states have internal predecessors, (695), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-16 04:30:04,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 903 transitions. [2023-12-16 04:30:04,066 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 903 transitions. Word has length 143 [2023-12-16 04:30:04,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:04,066 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 903 transitions. [2023-12-16 04:30:04,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.1) internal successors, (51), 11 states have internal predecessors, (51), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:04,066 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 903 transitions. [2023-12-16 04:30:04,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:30:04,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:04,068 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:04,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 04:30:04,068 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:04,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:04,068 INFO L85 PathProgramCache]: Analyzing trace with hash 525455029, now seen corresponding path program 1 times [2023-12-16 04:30:04,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:04,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097130922] [2023-12-16 04:30:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:04,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:05,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:05,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:05,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:05,442 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:05,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:05,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097130922] [2023-12-16 04:30:05,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097130922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:05,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:05,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:30:05,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212534188] [2023-12-16 04:30:05,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:05,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:30:05,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:05,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:30:05,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:30:05,444 INFO L87 Difference]: Start difference. First operand 679 states and 903 transitions. Second operand has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:30:06,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:06,490 INFO L93 Difference]: Finished difference Result 1396 states and 1853 transitions. [2023-12-16 04:30:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-16 04:30:06,491 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2023-12-16 04:30:06,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:06,493 INFO L225 Difference]: With dead ends: 1396 [2023-12-16 04:30:06,493 INFO L226 Difference]: Without dead ends: 742 [2023-12-16 04:30:06,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2023-12-16 04:30:06,495 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 245 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:06,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1007 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 04:30:06,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-16 04:30:06,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 694. [2023-12-16 04:30:06,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 568 states have (on average 1.2570422535211268) internal successors, (714), 577 states have internal predecessors, (714), 104 states have call successors, (104), 21 states have call predecessors, (104), 21 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-16 04:30:06,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 922 transitions. [2023-12-16 04:30:06,533 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 922 transitions. Word has length 144 [2023-12-16 04:30:06,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:06,533 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 922 transitions. [2023-12-16 04:30:06,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.777777777777778) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:30:06,534 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 922 transitions. [2023-12-16 04:30:06,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:30:06,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:06,535 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:06,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 04:30:06,535 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:06,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash 306600311, now seen corresponding path program 1 times [2023-12-16 04:30:06,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:06,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602209644] [2023-12-16 04:30:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:06,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:07,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:07,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:07,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:07,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:07,599 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:07,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:07,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602209644] [2023-12-16 04:30:07,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602209644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:07,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:07,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:30:07,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481185339] [2023-12-16 04:30:07,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:07,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:30:07,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:07,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:30:07,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:30:07,601 INFO L87 Difference]: Start difference. First operand 694 states and 922 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:30:08,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:08,105 INFO L93 Difference]: Finished difference Result 1485 states and 1974 transitions. [2023-12-16 04:30:08,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-16 04:30:08,105 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2023-12-16 04:30:08,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:08,108 INFO L225 Difference]: With dead ends: 1485 [2023-12-16 04:30:08,108 INFO L226 Difference]: Without dead ends: 816 [2023-12-16 04:30:08,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-12-16 04:30:08,110 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 118 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:08,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 837 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:30:08,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2023-12-16 04:30:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 749. [2023-12-16 04:30:08,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 617 states have (on average 1.252836304700162) internal successors, (773), 628 states have internal predecessors, (773), 108 states have call successors, (108), 23 states have call predecessors, (108), 23 states have return successors, (108), 97 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-16 04:30:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 989 transitions. [2023-12-16 04:30:08,153 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 989 transitions. Word has length 144 [2023-12-16 04:30:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:08,153 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 989 transitions. [2023-12-16 04:30:08,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 9 states have internal predecessors, (52), 3 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 3 states have call successors, (19) [2023-12-16 04:30:08,153 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 989 transitions. [2023-12-16 04:30:08,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-16 04:30:08,154 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:08,155 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:08,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 04:30:08,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:08,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:08,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1518165596, now seen corresponding path program 1 times [2023-12-16 04:30:08,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:08,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980881932] [2023-12-16 04:30:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:08,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:08,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:08,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:08,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:08,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:08,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:08,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980881932] [2023-12-16 04:30:08,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980881932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:08,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:08,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 04:30:08,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80379569] [2023-12-16 04:30:08,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:08,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:30:08,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:08,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:30:08,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:30:08,619 INFO L87 Difference]: Start difference. First operand 749 states and 989 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:08,868 INFO L93 Difference]: Finished difference Result 1395 states and 1838 transitions. [2023-12-16 04:30:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:30:08,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 144 [2023-12-16 04:30:08,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:08,870 INFO L225 Difference]: With dead ends: 1395 [2023-12-16 04:30:08,871 INFO L226 Difference]: Without dead ends: 671 [2023-12-16 04:30:08,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:30:08,872 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 84 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:08,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 495 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:30:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2023-12-16 04:30:08,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 669. [2023-12-16 04:30:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 541 states have (on average 1.232902033271719) internal successors, (667), 550 states have internal predecessors, (667), 104 states have call successors, (104), 23 states have call predecessors, (104), 23 states have return successors, (104), 95 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-16 04:30:08,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 875 transitions. [2023-12-16 04:30:08,909 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 875 transitions. Word has length 144 [2023-12-16 04:30:08,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:08,909 INFO L495 AbstractCegarLoop]: Abstraction has 669 states and 875 transitions. [2023-12-16 04:30:08,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:08,909 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 875 transitions. [2023-12-16 04:30:08,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:30:08,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:08,910 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:08,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 04:30:08,910 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:08,911 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:08,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1622224434, now seen corresponding path program 1 times [2023-12-16 04:30:08,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:08,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551521791] [2023-12-16 04:30:08,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:08,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:30:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:30:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:30:09,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:30:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:30:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:30:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:30:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:30:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-16 04:30:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-16 04:30:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:30:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-16 04:30:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 04:30:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-12-16 04:30:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-16 04:30:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-12-16 04:30:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-12-16 04:30:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-16 04:30:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-16 04:30:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:30:09,596 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2023-12-16 04:30:09,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:30:09,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551521791] [2023-12-16 04:30:09,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551521791] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:30:09,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:30:09,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-16 04:30:09,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753552207] [2023-12-16 04:30:09,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:30:09,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-16 04:30:09,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:30:09,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-16 04:30:09,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-16 04:30:09,597 INFO L87 Difference]: Start difference. First operand 669 states and 875 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:10,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:30:10,276 INFO L93 Difference]: Finished difference Result 1385 states and 1811 transitions. [2023-12-16 04:30:10,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:30:10,277 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 145 [2023-12-16 04:30:10,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:30:10,279 INFO L225 Difference]: With dead ends: 1385 [2023-12-16 04:30:10,279 INFO L226 Difference]: Without dead ends: 741 [2023-12-16 04:30:10,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2023-12-16 04:30:10,281 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 161 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:30:10,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 1250 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:30:10,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2023-12-16 04:30:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 645. [2023-12-16 04:30:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 521 states have (on average 1.220729366602687) internal successors, (636), 529 states have internal predecessors, (636), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 90 states have call predecessors, (98), 98 states have call successors, (98) [2023-12-16 04:30:10,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 832 transitions. [2023-12-16 04:30:10,321 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 832 transitions. Word has length 145 [2023-12-16 04:30:10,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:30:10,321 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 832 transitions. [2023-12-16 04:30:10,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-16 04:30:10,321 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 832 transitions. [2023-12-16 04:30:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-16 04:30:10,322 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:30:10,322 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:10,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 04:30:10,323 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:30:10,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:30:10,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1005498837, now seen corresponding path program 1 times [2023-12-16 04:30:10,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:30:10,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703501800] [2023-12-16 04:30:10,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:30:10,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:30:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 04:30:30,405 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,411 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,412 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,414 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,415 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,417 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,419 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,420 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,422 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,423 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,424 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 [2023-12-16 04:30:30,426 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,427 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,429 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,431 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,432 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,434 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,436 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,437 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,439 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,440 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,442 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,443 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,445 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,447 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,448 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,450 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,452 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,453 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,454 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,455 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,457 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,457 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,458 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,459 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,460 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,461 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,461 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,462 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,462 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,462 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,462 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,463 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,464 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 04:30:30,466 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:30:30,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 04:30:30,467 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 146 with TraceHistMax 19,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 144 interpolants. [2023-12-16 04:30:30,470 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:30,471 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:30:30,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:30:30 BoogieIcfgContainer [2023-12-16 04:30:30,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:30:30,473 INFO L158 Benchmark]: Toolchain (without parser) took 51283.63ms. Allocated memory was 188.7MB in the beginning and 1.2GB in the end (delta: 980.4MB). Free memory was 131.2MB in the beginning and 1.0GB in the end (delta: -872.0MB). Peak memory consumption was 701.5MB. Max. memory is 8.0GB. [2023-12-16 04:30:30,473 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:30:30,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.74ms. Allocated memory is still 188.7MB. Free memory was 131.2MB in the beginning and 114.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 04:30:30,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.14ms. Allocated memory is still 188.7MB. Free memory was 113.9MB in the beginning and 109.2MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 04:30:30,473 INFO L158 Benchmark]: Boogie Preprocessor took 85.27ms. Allocated memory is still 188.7MB. Free memory was 109.2MB in the beginning and 152.4MB in the end (delta: -43.2MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. [2023-12-16 04:30:30,473 INFO L158 Benchmark]: RCFGBuilder took 578.05ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 117.8MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2023-12-16 04:30:30,473 INFO L158 Benchmark]: TraceAbstraction took 50246.24ms. Allocated memory was 188.7MB in the beginning and 1.2GB in the end (delta: 980.4MB). Free memory was 117.2MB in the beginning and 1.0GB in the end (delta: -886.0MB). Peak memory consumption was 686.4MB. Max. memory is 8.0GB. [2023-12-16 04:30:30,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 188.7MB. Free memory is still 135.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 303.74ms. Allocated memory is still 188.7MB. Free memory was 131.2MB in the beginning and 114.1MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 66.14ms. Allocated memory is still 188.7MB. Free memory was 113.9MB in the beginning and 109.2MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.27ms. Allocated memory is still 188.7MB. Free memory was 109.2MB in the beginning and 152.4MB in the end (delta: -43.2MB). Peak memory consumption was 7.7MB. Max. memory is 8.0GB. * RCFGBuilder took 578.05ms. Allocated memory is still 188.7MB. Free memory was 152.4MB in the beginning and 117.8MB in the end (delta: 34.6MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * TraceAbstraction took 50246.24ms. Allocated memory was 188.7MB in the beginning and 1.2GB in the end (delta: 980.4MB). Free memory was 117.2MB in the beginning and 1.0GB in the end (delta: -886.0MB). Peak memory consumption was 686.4MB. 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 146 with TraceHistMax 19,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 144 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 22, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2791 SdHoareTripleChecker+Valid, 11.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2765 mSDsluCounter, 14597 SdHoareTripleChecker+Invalid, 9.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11637 mSDsCounter, 293 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10246 IncrementalHoareTripleChecker+Invalid, 10539 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 293 mSolverCounterUnsat, 2960 mSDtfsCounter, 10246 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1227 GetRequests, 1027 SyntacticMatches, 3 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=749occurred in iteration=19, InterpolantAutomatonStates: 207, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 21 MinimizatonAttempts, 1407 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 14.7s InterpolantComputationTime, 2979 NumberOfCodeBlocks, 2979 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2958 ConstructedInterpolants, 0 QuantifiedInterpolants, 13647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 14364/14364 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