/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/eca-rers2012/Problem12_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:55:10,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:55:10,697 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 01:55:10,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:55:10,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:55:10,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:55:10,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:55:10,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:55:10,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:55:10,769 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:55:10,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:55:10,770 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:55:10,770 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:55:10,771 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:55:10,771 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:55:10,771 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:55:10,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:55:10,773 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:55:10,773 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:55:10,773 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:55:10,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:55:10,773 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:55:10,774 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:55:10,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:55:10,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:55:10,775 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:55:10,775 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:55:10,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:55:10,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:55:10,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:55:11,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:55:11,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:55:11,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:55:11,148 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:55:11,164 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:55:11,165 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label40.c [2023-12-16 01:55:12,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:55:12,710 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:55:12,711 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label40.c [2023-12-16 01:55:12,737 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03cc5cb24/a5d54e78e81e4ad08a2c889c25f3a815/FLAGb56ed3249 [2023-12-16 01:55:12,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03cc5cb24/a5d54e78e81e4ad08a2c889c25f3a815 [2023-12-16 01:55:12,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:55:12,754 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:55:12,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:55:12,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:55:12,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:55:12,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:55:12" (1/1) ... [2023-12-16 01:55:12,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7306912a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:12, skipping insertion in model container [2023-12-16 01:55:12,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:55:12" (1/1) ... [2023-12-16 01:55:12,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:55:13,128 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label40.c[1561,1574] [2023-12-16 01:55:14,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:55:14,054 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:55:14,084 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label40.c[1561,1574] [2023-12-16 01:55:14,538 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:55:14,554 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:55:14,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14 WrapperNode [2023-12-16 01:55:14,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:55:14,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:55:14,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:55:14,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:55:14,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:14,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,031 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2023-12-16 01:55:15,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:55:15,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:55:15,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:55:15,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:55:15,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,402 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:55:15,402 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,403 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,692 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,770 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:55:15,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:55:15,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:55:15,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:55:15,879 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (1/1) ... [2023-12-16 01:55:15,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:55:15,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:55:15,935 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 01:55:15,955 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 01:55:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:55:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:55:16,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:55:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:55:16,064 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:55:16,066 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:55:20,200 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:55:20,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:55:20,239 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:55:20,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:55:20 BoogieIcfgContainer [2023-12-16 01:55:20,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:55:20,240 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:55:20,240 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:55:20,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:55:20,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:55:12" (1/3) ... [2023-12-16 01:55:20,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d5a60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:55:20, skipping insertion in model container [2023-12-16 01:55:20,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:55:14" (2/3) ... [2023-12-16 01:55:20,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d5a60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:55:20, skipping insertion in model container [2023-12-16 01:55:20,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:55:20" (3/3) ... [2023-12-16 01:55:20,244 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label40.c [2023-12-16 01:55:20,255 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:55:20,256 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:55:20,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:55:20,314 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;@5289dabc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:55:20,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:55:20,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-16 01:55:20,326 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:20,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:20,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:20,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:20,332 INFO L85 PathProgramCache]: Analyzing trace with hash 860289824, now seen corresponding path program 1 times [2023-12-16 01:55:20,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:20,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580260335] [2023-12-16 01:55:20,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:20,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:20,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:20,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:20,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580260335] [2023-12-16 01:55:20,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580260335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:20,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:20,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:55:20,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807685502] [2023-12-16 01:55:20,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:20,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:55:20,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:20,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:55:20,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:55:20,455 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:20,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:20,526 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2023-12-16 01:55:20,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:55:20,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-16 01:55:20,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:20,545 INFO L225 Difference]: With dead ends: 1511 [2023-12-16 01:55:20,545 INFO L226 Difference]: Without dead ends: 754 [2023-12-16 01:55:20,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 01:55:20,554 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:20,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:55:20,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-16 01:55:20,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-16 01:55:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2023-12-16 01:55:20,631 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 8 [2023-12-16 01:55:20,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:20,632 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2023-12-16 01:55:20,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2023-12-16 01:55:20,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-16 01:55:20,632 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:20,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:20,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:55:20,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:20,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:20,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1417591770, now seen corresponding path program 1 times [2023-12-16 01:55:20,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:20,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275144284] [2023-12-16 01:55:20,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:20,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:20,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:20,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275144284] [2023-12-16 01:55:20,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275144284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:20,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:20,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:55:20,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300104578] [2023-12-16 01:55:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:20,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:20,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:20,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:20,712 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:24,676 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2023-12-16 01:55:24,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:24,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-16 01:55:24,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:24,683 INFO L225 Difference]: With dead ends: 2258 [2023-12-16 01:55:24,683 INFO L226 Difference]: Without dead ends: 1505 [2023-12-16 01:55:24,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:24,684 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 792 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 2914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:24,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 473 Invalid, 2914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-16 01:55:24,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2023-12-16 01:55:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2023-12-16 01:55:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.6070478723404256) internal successors, (2417), 1504 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2417 transitions. [2023-12-16 01:55:24,727 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2417 transitions. Word has length 8 [2023-12-16 01:55:24,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:24,727 INFO L495 AbstractCegarLoop]: Abstraction has 1505 states and 2417 transitions. [2023-12-16 01:55:24,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2417 transitions. [2023-12-16 01:55:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-16 01:55:24,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:24,735 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:24,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:55:24,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:24,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:24,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1771050932, now seen corresponding path program 1 times [2023-12-16 01:55:24,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:24,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798277467] [2023-12-16 01:55:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:24,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:24,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:25,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:25,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798277467] [2023-12-16 01:55:25,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798277467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:25,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:25,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:55:25,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098788379] [2023-12-16 01:55:25,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:25,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:25,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:25,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:25,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:25,099 INFO L87 Difference]: Start difference. First operand 1505 states and 2417 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:29,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:29,283 INFO L93 Difference]: Finished difference Result 4511 states and 7248 transitions. [2023-12-16 01:55:29,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:29,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-16 01:55:29,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:29,301 INFO L225 Difference]: With dead ends: 4511 [2023-12-16 01:55:29,301 INFO L226 Difference]: Without dead ends: 3007 [2023-12-16 01:55:29,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:29,318 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 774 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 2931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:29,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 447 Invalid, 2931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-12-16 01:55:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2023-12-16 01:55:29,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2023-12-16 01:55:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.4158349966733201) internal successors, (4256), 3006 states have internal predecessors, (4256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4256 transitions. [2023-12-16 01:55:29,428 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4256 transitions. Word has length 83 [2023-12-16 01:55:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:29,429 INFO L495 AbstractCegarLoop]: Abstraction has 3007 states and 4256 transitions. [2023-12-16 01:55:29,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4256 transitions. [2023-12-16 01:55:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 01:55:29,430 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:29,430 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:29,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:55:29,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:29,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:29,431 INFO L85 PathProgramCache]: Analyzing trace with hash -42942567, now seen corresponding path program 1 times [2023-12-16 01:55:29,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:29,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258492358] [2023-12-16 01:55:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:29,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:29,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:29,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258492358] [2023-12-16 01:55:29,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258492358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:29,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:29,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:29,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729338218] [2023-12-16 01:55:29,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:29,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:55:29,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:29,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:55:29,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:29,649 INFO L87 Difference]: Start difference. First operand 3007 states and 4256 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:33,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:33,992 INFO L93 Difference]: Finished difference Result 9768 states and 13600 transitions. [2023-12-16 01:55:33,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:55:33,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2023-12-16 01:55:33,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:34,009 INFO L225 Difference]: With dead ends: 9768 [2023-12-16 01:55:34,010 INFO L226 Difference]: Without dead ends: 6762 [2023-12-16 01:55:34,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 01:55:34,014 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 2181 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4713 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 5460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 4713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:34,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 162 Invalid, 5460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 4713 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-12-16 01:55:34,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2023-12-16 01:55:34,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6762. [2023-12-16 01:55:34,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6761 states have (on average 1.3511314894246413) internal successors, (9135), 6761 states have internal predecessors, (9135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:34,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 9135 transitions. [2023-12-16 01:55:34,102 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 9135 transitions. Word has length 85 [2023-12-16 01:55:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:34,102 INFO L495 AbstractCegarLoop]: Abstraction has 6762 states and 9135 transitions. [2023-12-16 01:55:34,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 9135 transitions. [2023-12-16 01:55:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 01:55:34,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:34,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:34,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:55:34,105 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:34,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:34,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1928102855, now seen corresponding path program 1 times [2023-12-16 01:55:34,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:34,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855623861] [2023-12-16 01:55:34,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:34,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:34,365 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:34,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:34,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855623861] [2023-12-16 01:55:34,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855623861] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:55:34,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738492295] [2023-12-16 01:55:34,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:34,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:55:34,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:55:34,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:55:34,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:55:34,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:34,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:55:34,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:55:35,079 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:35,079 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:55:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:35,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738492295] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:55:35,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:55:35,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 5 [2023-12-16 01:55:35,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520924884] [2023-12-16 01:55:35,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:55:35,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:55:35,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:35,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:55:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:55:35,566 INFO L87 Difference]: Start difference. First operand 6762 states and 9135 transitions. Second operand has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 5 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:43,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:43,306 INFO L93 Difference]: Finished difference Result 28543 states and 38681 transitions. [2023-12-16 01:55:43,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:55:43,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 5 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 149 [2023-12-16 01:55:43,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:43,355 INFO L225 Difference]: With dead ends: 28543 [2023-12-16 01:55:43,355 INFO L226 Difference]: Without dead ends: 22533 [2023-12-16 01:55:43,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-12-16 01:55:43,366 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 4897 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 8204 mSolverCounterSat, 1767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4897 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 9971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1767 IncrementalHoareTripleChecker+Valid, 8204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:43,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4897 Valid, 140 Invalid, 9971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1767 Valid, 8204 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-16 01:55:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22533 states. [2023-12-16 01:55:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22533 to 16525. [2023-12-16 01:55:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16525 states, 16524 states have (on average 1.3093076736867586) internal successors, (21635), 16524 states have internal predecessors, (21635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:43,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16525 states to 16525 states and 21635 transitions. [2023-12-16 01:55:43,771 INFO L78 Accepts]: Start accepts. Automaton has 16525 states and 21635 transitions. Word has length 149 [2023-12-16 01:55:43,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:43,772 INFO L495 AbstractCegarLoop]: Abstraction has 16525 states and 21635 transitions. [2023-12-16 01:55:43,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.333333333333336) internal successors, (290), 5 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:43,773 INFO L276 IsEmpty]: Start isEmpty. Operand 16525 states and 21635 transitions. [2023-12-16 01:55:43,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-12-16 01:55:43,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:43,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:43,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:55:43,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:55:43,983 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:43,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1445354157, now seen corresponding path program 1 times [2023-12-16 01:55:43,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:43,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932377586] [2023-12-16 01:55:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:43,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:44,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:44,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932377586] [2023-12-16 01:55:44,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932377586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:44,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:44,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:44,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621909450] [2023-12-16 01:55:44,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:44,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:55:44,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:44,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:55:44,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:44,475 INFO L87 Difference]: Start difference. First operand 16525 states and 21635 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:47,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:47,400 INFO L93 Difference]: Finished difference Result 37592 states and 48694 transitions. [2023-12-16 01:55:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:55:47,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2023-12-16 01:55:47,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:47,443 INFO L225 Difference]: With dead ends: 37592 [2023-12-16 01:55:47,443 INFO L226 Difference]: Without dead ends: 21031 [2023-12-16 01:55:47,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:55:47,522 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 702 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3061 mSolverCounterSat, 272 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 3333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 272 IncrementalHoareTripleChecker+Valid, 3061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:47,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 627 Invalid, 3333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [272 Valid, 3061 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:55:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21031 states. [2023-12-16 01:55:47,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21031 to 20280. [2023-12-16 01:55:47,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20280 states, 20279 states have (on average 1.2513930667192663) internal successors, (25377), 20279 states have internal predecessors, (25377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:47,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20280 states to 20280 states and 25377 transitions. [2023-12-16 01:55:47,838 INFO L78 Accepts]: Start accepts. Automaton has 20280 states and 25377 transitions. Word has length 160 [2023-12-16 01:55:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:47,838 INFO L495 AbstractCegarLoop]: Abstraction has 20280 states and 25377 transitions. [2023-12-16 01:55:47,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 20280 states and 25377 transitions. [2023-12-16 01:55:47,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-16 01:55:47,840 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:47,840 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:47,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:55:47,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:47,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:47,841 INFO L85 PathProgramCache]: Analyzing trace with hash 2071476907, now seen corresponding path program 1 times [2023-12-16 01:55:47,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:47,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978760472] [2023-12-16 01:55:47,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:47,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 01:55:48,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:48,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978760472] [2023-12-16 01:55:48,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978760472] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:48,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:48,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:48,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425494668] [2023-12-16 01:55:48,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:48,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:48,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:48,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:48,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:48,032 INFO L87 Difference]: Start difference. First operand 20280 states and 25377 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:50,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:50,976 INFO L93 Difference]: Finished difference Result 48069 states and 61249 transitions. [2023-12-16 01:55:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:50,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2023-12-16 01:55:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:51,014 INFO L225 Difference]: With dead ends: 48069 [2023-12-16 01:55:51,014 INFO L226 Difference]: Without dead ends: 27790 [2023-12-16 01:55:51,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:51,036 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 774 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:51,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 540 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:55:51,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27790 states. [2023-12-16 01:55:51,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27790 to 20280. [2023-12-16 01:55:51,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20280 states, 20279 states have (on average 1.2513930667192663) internal successors, (25377), 20279 states have internal predecessors, (25377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:51,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20280 states to 20280 states and 25377 transitions. [2023-12-16 01:55:51,282 INFO L78 Accepts]: Start accepts. Automaton has 20280 states and 25377 transitions. Word has length 220 [2023-12-16 01:55:51,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:51,282 INFO L495 AbstractCegarLoop]: Abstraction has 20280 states and 25377 transitions. [2023-12-16 01:55:51,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:51,283 INFO L276 IsEmpty]: Start isEmpty. Operand 20280 states and 25377 transitions. [2023-12-16 01:55:51,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-16 01:55:51,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:51,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:55:51,286 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:51,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:51,287 INFO L85 PathProgramCache]: Analyzing trace with hash -590873744, now seen corresponding path program 1 times [2023-12-16 01:55:51,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:51,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205686851] [2023-12-16 01:55:51,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:51,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-16 01:55:51,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:51,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205686851] [2023-12-16 01:55:51,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205686851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:51,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:51,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:55:51,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911924634] [2023-12-16 01:55:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:51,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:51,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:51,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:51,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:51,536 INFO L87 Difference]: Start difference. First operand 20280 states and 25377 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:54,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:54,298 INFO L93 Difference]: Finished difference Result 54079 states and 68818 transitions. [2023-12-16 01:55:54,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:54,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2023-12-16 01:55:54,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:54,408 INFO L225 Difference]: With dead ends: 54079 [2023-12-16 01:55:54,408 INFO L226 Difference]: Without dead ends: 33800 [2023-12-16 01:55:54,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:54,446 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 848 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:54,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 308 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:55:54,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33800 states. [2023-12-16 01:55:54,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33800 to 31545. [2023-12-16 01:55:54,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31545 states, 31544 states have (on average 1.2279672837940654) internal successors, (38735), 31544 states have internal predecessors, (38735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31545 states to 31545 states and 38735 transitions. [2023-12-16 01:55:55,125 INFO L78 Accepts]: Start accepts. Automaton has 31545 states and 38735 transitions. Word has length 221 [2023-12-16 01:55:55,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:55,125 INFO L495 AbstractCegarLoop]: Abstraction has 31545 states and 38735 transitions. [2023-12-16 01:55:55,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:55,125 INFO L276 IsEmpty]: Start isEmpty. Operand 31545 states and 38735 transitions. [2023-12-16 01:55:55,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-16 01:55:55,127 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:55,131 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:55:55,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:55:55,131 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:55,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:55,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1706819236, now seen corresponding path program 1 times [2023-12-16 01:55:55,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:55,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676695703] [2023-12-16 01:55:55,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:55,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:55,399 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 01:55:55,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:55,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676695703] [2023-12-16 01:55:55,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676695703] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:55,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:55,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:55,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427440] [2023-12-16 01:55:55,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:55,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:55,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:55,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:55,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:55,403 INFO L87 Difference]: Start difference. First operand 31545 states and 38735 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:55:58,412 INFO L93 Difference]: Finished difference Result 74354 states and 92807 transitions. [2023-12-16 01:55:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:55:58,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2023-12-16 01:55:58,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:55:58,460 INFO L225 Difference]: With dead ends: 74354 [2023-12-16 01:55:58,461 INFO L226 Difference]: Without dead ends: 42810 [2023-12-16 01:55:58,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:58,488 INFO L413 NwaCegarLoop]: 1206 mSDtfsCounter, 766 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 521 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:55:58,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 1213 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:55:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42810 states. [2023-12-16 01:55:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42810 to 40557. [2023-12-16 01:55:59,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40557 states, 40556 states have (on average 1.2051730939934904) internal successors, (48877), 40556 states have internal predecessors, (48877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40557 states to 40557 states and 48877 transitions. [2023-12-16 01:55:59,064 INFO L78 Accepts]: Start accepts. Automaton has 40557 states and 48877 transitions. Word has length 238 [2023-12-16 01:55:59,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:55:59,064 INFO L495 AbstractCegarLoop]: Abstraction has 40557 states and 48877 transitions. [2023-12-16 01:55:59,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:55:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40557 states and 48877 transitions. [2023-12-16 01:55:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-12-16 01:55:59,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:55:59,067 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:55:59,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:55:59,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:55:59,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:55:59,067 INFO L85 PathProgramCache]: Analyzing trace with hash 299502206, now seen corresponding path program 1 times [2023-12-16 01:55:59,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:55:59,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884490895] [2023-12-16 01:55:59,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:55:59,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:55:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:55:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:55:59,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:55:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884490895] [2023-12-16 01:55:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884490895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:55:59,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:55:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:55:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062498467] [2023-12-16 01:55:59,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:55:59,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:55:59,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:55:59,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:55:59,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:55:59,473 INFO L87 Difference]: Start difference. First operand 40557 states and 48877 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:02,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:56:02,610 INFO L93 Difference]: Finished difference Result 98386 states and 118291 transitions. [2023-12-16 01:56:02,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:56:02,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2023-12-16 01:56:02,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:56:02,675 INFO L225 Difference]: With dead ends: 98386 [2023-12-16 01:56:02,675 INFO L226 Difference]: Without dead ends: 57830 [2023-12-16 01:56:02,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:02,702 INFO L413 NwaCegarLoop]: 1178 mSDtfsCounter, 637 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2589 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:56:02,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 1184 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2589 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 01:56:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57830 states. [2023-12-16 01:56:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57830 to 57079. [2023-12-16 01:56:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57079 states, 57078 states have (on average 1.1905988296716774) internal successors, (67957), 57078 states have internal predecessors, (67957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57079 states to 57079 states and 67957 transitions. [2023-12-16 01:56:03,471 INFO L78 Accepts]: Start accepts. Automaton has 57079 states and 67957 transitions. Word has length 266 [2023-12-16 01:56:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:56:03,472 INFO L495 AbstractCegarLoop]: Abstraction has 57079 states and 67957 transitions. [2023-12-16 01:56:03,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 57079 states and 67957 transitions. [2023-12-16 01:56:03,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-12-16 01:56:03,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:56:03,489 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:56:03,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:56:03,490 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:56:03,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:56:03,490 INFO L85 PathProgramCache]: Analyzing trace with hash 23249140, now seen corresponding path program 1 times [2023-12-16 01:56:03,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:56:03,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293297507] [2023-12-16 01:56:03,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:56:03,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:56:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:56:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2023-12-16 01:56:03,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:56:03,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293297507] [2023-12-16 01:56:03,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293297507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:56:03,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:56:03,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:56:03,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639724150] [2023-12-16 01:56:03,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:56:03,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:56:03,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:56:03,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:56:03,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:03,869 INFO L87 Difference]: Start difference. First operand 57079 states and 67957 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:07,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:56:07,154 INFO L93 Difference]: Finished difference Result 129928 states and 156971 transitions. [2023-12-16 01:56:07,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:56:07,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2023-12-16 01:56:07,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:56:07,242 INFO L225 Difference]: With dead ends: 129928 [2023-12-16 01:56:07,242 INFO L226 Difference]: Without dead ends: 72850 [2023-12-16 01:56:07,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:07,277 INFO L413 NwaCegarLoop]: 1280 mSDtfsCounter, 759 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2248 mSolverCounterSat, 539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 759 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 2248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:56:07,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [759 Valid, 1287 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 2248 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 01:56:07,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72850 states. [2023-12-16 01:56:08,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72850 to 72850. [2023-12-16 01:56:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72850 states, 72849 states have (on average 1.1519032519320787) internal successors, (83915), 72849 states have internal predecessors, (83915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:08,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72850 states to 72850 states and 83915 transitions. [2023-12-16 01:56:08,490 INFO L78 Accepts]: Start accepts. Automaton has 72850 states and 83915 transitions. Word has length 270 [2023-12-16 01:56:08,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:56:08,491 INFO L495 AbstractCegarLoop]: Abstraction has 72850 states and 83915 transitions. [2023-12-16 01:56:08,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 72850 states and 83915 transitions. [2023-12-16 01:56:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-16 01:56:08,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:56:08,497 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:08,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:56:08,497 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:56:08,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:56:08,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2031117237, now seen corresponding path program 1 times [2023-12-16 01:56:08,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:56:08,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633944294] [2023-12-16 01:56:08,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:56:08,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:56:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:56:08,742 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-16 01:56:08,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:56:08,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633944294] [2023-12-16 01:56:08,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633944294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:56:08,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:56:08,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:56:08,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276567182] [2023-12-16 01:56:08,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:56:08,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:56:08,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:56:08,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:56:08,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:08,744 INFO L87 Difference]: Start difference. First operand 72850 states and 83915 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:11,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:56:11,428 INFO L93 Difference]: Finished difference Result 147952 states and 170126 transitions. [2023-12-16 01:56:11,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:56:11,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2023-12-16 01:56:11,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:56:11,535 INFO L225 Difference]: With dead ends: 147952 [2023-12-16 01:56:11,535 INFO L226 Difference]: Without dead ends: 74352 [2023-12-16 01:56:11,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:11,569 INFO L413 NwaCegarLoop]: 1189 mSDtfsCounter, 738 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-16 01:56:11,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1195 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-16 01:56:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74352 states. [2023-12-16 01:56:12,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74352 to 69095. [2023-12-16 01:56:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69095 states, 69094 states have (on average 1.1024546270298434) internal successors, (76173), 69094 states have internal predecessors, (76173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:12,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69095 states to 69095 states and 76173 transitions. [2023-12-16 01:56:12,543 INFO L78 Accepts]: Start accepts. Automaton has 69095 states and 76173 transitions. Word has length 346 [2023-12-16 01:56:12,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:56:12,544 INFO L495 AbstractCegarLoop]: Abstraction has 69095 states and 76173 transitions. [2023-12-16 01:56:12,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:12,544 INFO L276 IsEmpty]: Start isEmpty. Operand 69095 states and 76173 transitions. [2023-12-16 01:56:12,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-16 01:56:12,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:56:12,548 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:12,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:56:12,549 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:56:12,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:56:12,549 INFO L85 PathProgramCache]: Analyzing trace with hash 588146865, now seen corresponding path program 1 times [2023-12-16 01:56:12,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:56:12,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702639287] [2023-12-16 01:56:12,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:56:12,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:56:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:56:13,198 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2023-12-16 01:56:13,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:56:13,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702639287] [2023-12-16 01:56:13,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702639287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:56:13,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:56:13,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:56:13,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752529249] [2023-12-16 01:56:13,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:56:13,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:56:13,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:56:13,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:56:13,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:13,199 INFO L87 Difference]: Start difference. First operand 69095 states and 76173 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:15,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:56:15,869 INFO L93 Difference]: Finished difference Result 147201 states and 162024 transitions. [2023-12-16 01:56:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:56:15,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 367 [2023-12-16 01:56:15,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:56:15,957 INFO L225 Difference]: With dead ends: 147201 [2023-12-16 01:56:15,958 INFO L226 Difference]: Without dead ends: 78107 [2023-12-16 01:56:15,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:15,988 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 858 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:56:15,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 914 Invalid, 2725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 01:56:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78107 states. [2023-12-16 01:56:16,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78107 to 71348. [2023-12-16 01:56:17,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71348 states, 71347 states have (on average 1.093052265687415) internal successors, (77986), 71347 states have internal predecessors, (77986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:17,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71348 states to 71348 states and 77986 transitions. [2023-12-16 01:56:17,097 INFO L78 Accepts]: Start accepts. Automaton has 71348 states and 77986 transitions. Word has length 367 [2023-12-16 01:56:17,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:56:17,099 INFO L495 AbstractCegarLoop]: Abstraction has 71348 states and 77986 transitions. [2023-12-16 01:56:17,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:17,099 INFO L276 IsEmpty]: Start isEmpty. Operand 71348 states and 77986 transitions. [2023-12-16 01:56:17,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2023-12-16 01:56:17,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:56:17,126 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:17,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:56:17,126 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:56:17,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:56:17,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1144699687, now seen corresponding path program 1 times [2023-12-16 01:56:17,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:56:17,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795546259] [2023-12-16 01:56:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:56:17,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:56:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:56:17,624 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-16 01:56:17,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:56:17,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795546259] [2023-12-16 01:56:17,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795546259] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:56:17,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:56:17,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:56:17,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933903372] [2023-12-16 01:56:17,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:56:17,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:56:17,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:56:17,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:56:17,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:17,626 INFO L87 Difference]: Start difference. First operand 71348 states and 77986 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:20,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:56:20,783 INFO L93 Difference]: Finished difference Result 149454 states and 163103 transitions. [2023-12-16 01:56:20,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:56:20,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 422 [2023-12-16 01:56:20,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:56:20,865 INFO L225 Difference]: With dead ends: 149454 [2023-12-16 01:56:20,865 INFO L226 Difference]: Without dead ends: 78107 [2023-12-16 01:56:20,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:20,892 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 777 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2419 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 2419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:56:20,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1220 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 2419 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-16 01:56:20,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78107 states. [2023-12-16 01:56:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78107 to 75103. [2023-12-16 01:56:21,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75103 states, 75102 states have (on average 1.083100316902346) internal successors, (81343), 75102 states have internal predecessors, (81343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75103 states to 75103 states and 81343 transitions. [2023-12-16 01:56:21,937 INFO L78 Accepts]: Start accepts. Automaton has 75103 states and 81343 transitions. Word has length 422 [2023-12-16 01:56:21,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:56:21,940 INFO L495 AbstractCegarLoop]: Abstraction has 75103 states and 81343 transitions. [2023-12-16 01:56:21,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:56:21,940 INFO L276 IsEmpty]: Start isEmpty. Operand 75103 states and 81343 transitions. [2023-12-16 01:56:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2023-12-16 01:56:21,947 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:56:21,947 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:56:21,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:56:21,947 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:56:21,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:56:21,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1885247053, now seen corresponding path program 1 times [2023-12-16 01:56:21,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:56:21,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124660750] [2023-12-16 01:56:21,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:56:21,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:56:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:56:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 452 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-12-16 01:56:22,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:56:22,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124660750] [2023-12-16 01:56:22,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124660750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:56:22,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:56:22,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:56:22,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599365608] [2023-12-16 01:56:22,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:56:22,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:56:22,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:56:22,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:56:22,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:22,619 INFO L87 Difference]: Start difference. First operand 75103 states and 81343 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 01:56:24,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:56:24,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:56:24,563 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 646 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-16 01:56:24,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 253 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-16 01:56:24,564 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:56:24,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:56:24,566 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (75103states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (35629 states constructed, input type IntersectNwa). [2023-12-16 01:56:24,569 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:56:24,571 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:56:24,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:56:24 BoogieIcfgContainer [2023-12-16 01:56:24,572 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:56:24,572 INFO L158 Benchmark]: Toolchain (without parser) took 71818.63ms. Allocated memory was 233.8MB in the beginning and 5.0GB in the end (delta: 4.8GB). Free memory was 163.2MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 01:56:24,573 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:56:24,573 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1799.58ms. Allocated memory was 233.8MB in the beginning and 338.7MB in the end (delta: 104.9MB). Free memory was 163.2MB in the beginning and 230.5MB in the end (delta: -67.3MB). Peak memory consumption was 63.2MB. Max. memory is 8.0GB. [2023-12-16 01:56:24,573 INFO L158 Benchmark]: Boogie Procedure Inliner took 458.87ms. Allocated memory is still 338.7MB. Free memory was 230.5MB in the beginning and 160.3MB in the end (delta: 70.2MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. [2023-12-16 01:56:24,573 INFO L158 Benchmark]: Boogie Preprocessor took 845.64ms. Allocated memory is still 338.7MB. Free memory was 160.3MB in the beginning and 210.6MB in the end (delta: -50.2MB). Peak memory consumption was 129.6MB. Max. memory is 8.0GB. [2023-12-16 01:56:24,573 INFO L158 Benchmark]: RCFGBuilder took 4360.73ms. Allocated memory was 338.7MB in the beginning and 677.4MB in the end (delta: 338.7MB). Free memory was 210.2MB in the beginning and 394.0MB in the end (delta: -183.8MB). Peak memory consumption was 179.8MB. Max. memory is 8.0GB. [2023-12-16 01:56:24,573 INFO L158 Benchmark]: TraceAbstraction took 64331.79ms. Allocated memory was 677.4MB in the beginning and 5.0GB in the end (delta: 4.4GB). Free memory was 393.5MB in the beginning and 3.4GB in the end (delta: -3.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-16 01:56:24,574 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-16 01:56:24,580 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 Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 175.1MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1799.58ms. Allocated memory was 233.8MB in the beginning and 338.7MB in the end (delta: 104.9MB). Free memory was 163.2MB in the beginning and 230.5MB in the end (delta: -67.3MB). Peak memory consumption was 63.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 458.87ms. Allocated memory is still 338.7MB. Free memory was 230.5MB in the beginning and 160.3MB in the end (delta: 70.2MB). Peak memory consumption was 69.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 845.64ms. Allocated memory is still 338.7MB. Free memory was 160.3MB in the beginning and 210.6MB in the end (delta: -50.2MB). Peak memory consumption was 129.6MB. Max. memory is 8.0GB. * RCFGBuilder took 4360.73ms. Allocated memory was 338.7MB in the beginning and 677.4MB in the end (delta: 338.7MB). Free memory was 210.2MB in the beginning and 394.0MB in the end (delta: -183.8MB). Peak memory consumption was 179.8MB. Max. memory is 8.0GB. * TraceAbstraction took 64331.79ms. Allocated memory was 677.4MB in the beginning and 5.0GB in the end (delta: 4.4GB). Free memory was 393.5MB in the beginning and 3.4GB in the end (delta: -3.1GB). Peak memory consumption was 1.4GB. 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: 49]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 49). Cancelled while NwaCegarLoop was constructing difference of abstraction (75103states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (35629 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 64.3s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 50.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16149 SdHoareTripleChecker+Valid, 45.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16149 mSDsluCounter, 11401 SdHoareTripleChecker+Invalid, 37.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147 mSDsCounter, 8756 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40124 IncrementalHoareTripleChecker+Invalid, 48880 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8756 mSolverCounterUnsat, 11254 mSDtfsCounter, 40124 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75103occurred in iteration=14, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 34548 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 3436 NumberOfCodeBlocks, 3436 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3568 ConstructedInterpolants, 0 QuantifiedInterpolants, 10459 SizeOfPredicates, 6 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 2128/2146 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