/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/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 14:41:31,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 14:41:31,560 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 14:41:31,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 14:41:31,563 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 14:41:31,576 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 14:41:31,577 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 14:41:31,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 14:41:31,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 14:41:31,578 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 14:41:31,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 14:41:31,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 14:41:31,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 14:41:31,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 14:41:31,579 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 14:41:31,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 14:41:31,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 14:41:31,579 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 14:41:31,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 14:41:31,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 14:41:31,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 14:41:31,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 14:41:31,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 14:41:31,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 14:41:31,581 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 14:41:31,581 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 14:41:31,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 14:41:31,582 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 14:41:31,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 14:41:31,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 14:41:31,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 14:41:31,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 14:41:31,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 14:41:31,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 14:41:31,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 14:41:31,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 14:41:31,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 14:41:31,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 14:41:31,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 14:41:31,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 14:41:31,584 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 14:41:31,596 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 14:41:31,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 14:41:31,596 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 14:41:31,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 14:41:31,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 14:41:31,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 14:41:31,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 14:41:31,786 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 14:41:31,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c [2023-12-20 14:41:32,782 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 14:41:33,119 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 14:41:33,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c [2023-12-20 14:41:33,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a360b81b5/826e038fcee8432390311df5285f1fd1/FLAG8c4d1a118 [2023-12-20 14:41:33,162 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a360b81b5/826e038fcee8432390311df5285f1fd1 [2023-12-20 14:41:33,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 14:41:33,166 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 14:41:33,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 14:41:33,168 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 14:41:33,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 14:41:33,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:41:33" (1/1) ... [2023-12-20 14:41:33,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aad9ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:33, skipping insertion in model container [2023-12-20 14:41:33,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:41:33" (1/1) ... [2023-12-20 14:41:33,276 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 14:41:33,609 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c[26888,26901] [2023-12-20 14:41:33,661 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c[29705,29718] [2023-12-20 14:41:34,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 14:41:34,174 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 14:41:34,215 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c[26888,26901] [2023-12-20 14:41:34,222 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c[29705,29718] [2023-12-20 14:41:34,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 14:41:34,526 INFO L206 MainTranslator]: Completed translation [2023-12-20 14:41:34,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34 WrapperNode [2023-12-20 14:41:34,527 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 14:41:34,528 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 14:41:34,528 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 14:41:34,528 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 14:41:34,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:34,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:34,827 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5283 [2023-12-20 14:41:34,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 14:41:34,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 14:41:34,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 14:41:34,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 14:41:34,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:34,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:34,873 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:34,977 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]. [2023-12-20 14:41:34,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:34,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:35,253 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:35,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:35,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:35,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:35,357 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 14:41:35,359 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 14:41:35,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 14:41:35,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 14:41:35,360 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (1/1) ... [2023-12-20 14:41:35,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 14:41:35,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 14:41:35,382 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) [2023-12-20 14:41:35,390 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 [2023-12-20 14:41:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 14:41:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 14:41:35,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 14:41:35,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 14:41:35,520 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 14:41:35,521 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 14:41:38,453 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 14:41:38,510 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 14:41:38,511 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-20 14:41:38,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:41:38 BoogieIcfgContainer [2023-12-20 14:41:38,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 14:41:38,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 14:41:38,513 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 14:41:38,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 14:41:38,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:41:33" (1/3) ... [2023-12-20 14:41:38,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb58a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:41:38, skipping insertion in model container [2023-12-20 14:41:38,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:41:34" (2/3) ... [2023-12-20 14:41:38,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb58a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:41:38, skipping insertion in model container [2023-12-20 14:41:38,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:41:38" (3/3) ... [2023-12-20 14:41:38,517 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label06.c [2023-12-20 14:41:38,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 14:41:38,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-20 14:41:38,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 14:41:38,587 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;@e200c0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 14:41:38,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-20 14:41:38,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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) [2023-12-20 14:41:38,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-20 14:41:38,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:38,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:38,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:38,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1926784474, now seen corresponding path program 1 times [2023-12-20 14:41:38,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:38,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305912697] [2023-12-20 14:41:38,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:38,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:38,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:38,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:38,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305912697] [2023-12-20 14:41:38,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305912697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:38,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:38,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 14:41:38,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034297416] [2023-12-20 14:41:38,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:38,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 14:41:38,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:38,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 14:41:38,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 14:41:38,777 INFO L87 Difference]: Start difference. First operand has 884 states, 881 states have (on average 1.9693530079455164) internal successors, (1735), 883 states have internal predecessors, (1735), 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 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-20 14:41:38,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:38,877 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-20 14:41:38,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 14:41:38,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2023-12-20 14:41:38,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:38,895 INFO L225 Difference]: With dead ends: 1702 [2023-12-20 14:41:38,896 INFO L226 Difference]: Without dead ends: 880 [2023-12-20 14:41:38,902 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 [2023-12-20 14:41:38,905 INFO L413 NwaCegarLoop]: 1663 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:38,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1663 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:38,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-20 14:41:38,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-20 14:41:38,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 878 states have (on average 1.8952164009111618) internal successors, (1664), 879 states have internal predecessors, (1664), 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) [2023-12-20 14:41:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-20 14:41:38,963 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 23 [2023-12-20 14:41:38,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:38,963 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-20 14:41:38,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-20 14:41:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-20 14:41:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-20 14:41:38,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:38,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:38,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 14:41:38,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:38,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:38,966 INFO L85 PathProgramCache]: Analyzing trace with hash 199933740, now seen corresponding path program 1 times [2023-12-20 14:41:38,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:38,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004784662] [2023-12-20 14:41:38,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:38,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:39,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:39,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004784662] [2023-12-20 14:41:39,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004784662] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:39,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:39,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 14:41:39,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247660100] [2023-12-20 14:41:39,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:39,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:39,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:39,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:39,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:39,108 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-20 14:41:41,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:41,876 INFO L93 Difference]: Finished difference Result 2384 states and 4537 transitions. [2023-12-20 14:41:41,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:41,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 23 [2023-12-20 14:41:41,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:41,885 INFO L225 Difference]: With dead ends: 2384 [2023-12-20 14:41:41,885 INFO L226 Difference]: Without dead ends: 1631 [2023-12-20 14:41:41,888 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 [2023-12-20 14:41:41,889 INFO L413 NwaCegarLoop]: 762 mSDtfsCounter, 998 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:41,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 769 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-20 14:41:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-20 14:41:41,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-20 14:41:41,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.5782688766114181) internal successors, (2571), 1630 states have internal predecessors, (2571), 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) [2023-12-20 14:41:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2571 transitions. [2023-12-20 14:41:41,921 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2571 transitions. Word has length 23 [2023-12-20 14:41:41,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:41,922 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2571 transitions. [2023-12-20 14:41:41,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2023-12-20 14:41:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2571 transitions. [2023-12-20 14:41:41,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-20 14:41:41,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:41,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:41,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 14:41:41,926 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:41,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:41,926 INFO L85 PathProgramCache]: Analyzing trace with hash 143558005, now seen corresponding path program 1 times [2023-12-20 14:41:41,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:41,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678237130] [2023-12-20 14:41:41,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:41,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:42,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:42,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:42,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678237130] [2023-12-20 14:41:42,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678237130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:42,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:42,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 14:41:42,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460111846] [2023-12-20 14:41:42,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:42,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 14:41:42,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:42,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 14:41:42,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 14:41:42,111 INFO L87 Difference]: Start difference. First operand 1631 states and 2571 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-20 14:41:42,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:42,171 INFO L93 Difference]: Finished difference Result 1695 states and 2673 transitions. [2023-12-20 14:41:42,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 14:41:42,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-12-20 14:41:42,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:42,176 INFO L225 Difference]: With dead ends: 1695 [2023-12-20 14:41:42,176 INFO L226 Difference]: Without dead ends: 1631 [2023-12-20 14:41:42,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 14:41:42,178 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 0 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4918 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:42,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4918 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-20 14:41:42,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-20 14:41:42,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.5408225905463475) internal successors, (2510), 1630 states have internal predecessors, (2510), 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) [2023-12-20 14:41:42,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2510 transitions. [2023-12-20 14:41:42,202 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2510 transitions. Word has length 27 [2023-12-20 14:41:42,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:42,202 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2510 transitions. [2023-12-20 14:41:42,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-12-20 14:41:42,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2510 transitions. [2023-12-20 14:41:42,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-20 14:41:42,204 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:42,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:42,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 14:41:42,205 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:42,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:42,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1723189211, now seen corresponding path program 1 times [2023-12-20 14:41:42,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:42,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585926470] [2023-12-20 14:41:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:42,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:42,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:42,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585926470] [2023-12-20 14:41:42,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585926470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:42,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:42,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:41:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292164851] [2023-12-20 14:41:42,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:42,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:41:42,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:42,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:41:42,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:41:42,528 INFO L87 Difference]: Start difference. First operand 1631 states and 2510 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-20 14:41:42,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:42,914 INFO L93 Difference]: Finished difference Result 2607 states and 4094 transitions. [2023-12-20 14:41:42,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 14:41:42,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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 87 [2023-12-20 14:41:42,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:42,923 INFO L225 Difference]: With dead ends: 2607 [2023-12-20 14:41:42,923 INFO L226 Difference]: Without dead ends: 2546 [2023-12-20 14:41:42,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2023-12-20 14:41:42,929 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 13544 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13544 SdHoareTripleChecker+Valid, 5483 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:42,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 5483 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:41:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2023-12-20 14:41:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1690. [2023-12-20 14:41:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1688 states have (on average 1.5438388625592416) internal successors, (2606), 1689 states have internal predecessors, (2606), 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) [2023-12-20 14:41:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2606 transitions. [2023-12-20 14:41:42,965 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2606 transitions. Word has length 87 [2023-12-20 14:41:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:42,967 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2606 transitions. [2023-12-20 14:41:42,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 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) [2023-12-20 14:41:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2606 transitions. [2023-12-20 14:41:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 14:41:42,969 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:42,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:42,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 14:41:42,970 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:42,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1732338517, now seen corresponding path program 1 times [2023-12-20 14:41:42,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:42,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192096305] [2023-12-20 14:41:42,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:42,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:43,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192096305] [2023-12-20 14:41:43,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192096305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:43,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:43,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:43,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525277199] [2023-12-20 14:41:43,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:43,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:43,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:43,111 INFO L87 Difference]: Start difference. First operand 1690 states and 2606 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-20 14:41:43,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:43,143 INFO L93 Difference]: Finished difference Result 1919 states and 2977 transitions. [2023-12-20 14:41:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:43,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2023-12-20 14:41:43,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:43,149 INFO L225 Difference]: With dead ends: 1919 [2023-12-20 14:41:43,149 INFO L226 Difference]: Without dead ends: 1799 [2023-12-20 14:41:43,151 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 [2023-12-20 14:41:43,152 INFO L413 NwaCegarLoop]: 1596 mSDtfsCounter, 1506 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:43,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1687 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:43,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-12-20 14:41:43,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1795. [2023-12-20 14:41:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.54712771890686) internal successors, (2774), 1794 states have internal predecessors, (2774), 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) [2023-12-20 14:41:43,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2774 transitions. [2023-12-20 14:41:43,183 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2774 transitions. Word has length 89 [2023-12-20 14:41:43,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:43,185 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2774 transitions. [2023-12-20 14:41:43,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2023-12-20 14:41:43,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2774 transitions. [2023-12-20 14:41:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-20 14:41:43,187 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:43,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:43,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 14:41:43,188 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:43,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1734483469, now seen corresponding path program 1 times [2023-12-20 14:41:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:43,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278492608] [2023-12-20 14:41:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:43,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:43,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:43,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278492608] [2023-12-20 14:41:43,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278492608] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:43,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:43,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:41:43,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557938128] [2023-12-20 14:41:43,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:43,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:41:43,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:43,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:41:43,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:41:43,609 INFO L87 Difference]: Start difference. First operand 1795 states and 2774 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2023-12-20 14:41:43,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:43,947 INFO L93 Difference]: Finished difference Result 2022 states and 3138 transitions. [2023-12-20 14:41:43,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 14:41:43,947 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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 89 [2023-12-20 14:41:43,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:43,954 INFO L225 Difference]: With dead ends: 2022 [2023-12-20 14:41:43,955 INFO L226 Difference]: Without dead ends: 1797 [2023-12-20 14:41:43,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-20 14:41:43,956 INFO L413 NwaCegarLoop]: 1590 mSDtfsCounter, 12140 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12140 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:43,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12140 Valid, 2258 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:41:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2023-12-20 14:41:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1795. [2023-12-20 14:41:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.5460122699386503) internal successors, (2772), 1794 states have internal predecessors, (2772), 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) [2023-12-20 14:41:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2772 transitions. [2023-12-20 14:41:43,999 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2772 transitions. Word has length 89 [2023-12-20 14:41:44,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:44,000 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2772 transitions. [2023-12-20 14:41:44,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 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) [2023-12-20 14:41:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2772 transitions. [2023-12-20 14:41:44,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-20 14:41:44,004 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:44,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:44,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 14:41:44,004 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:44,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:44,005 INFO L85 PathProgramCache]: Analyzing trace with hash 2100477793, now seen corresponding path program 1 times [2023-12-20 14:41:44,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:44,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323037058] [2023-12-20 14:41:44,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:44,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:44,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:44,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323037058] [2023-12-20 14:41:44,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323037058] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:44,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:44,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 14:41:44,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541535342] [2023-12-20 14:41:44,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:44,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 14:41:44,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:44,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 14:41:44,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 14:41:44,226 INFO L87 Difference]: Start difference. First operand 1795 states and 2772 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-20 14:41:44,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:44,259 INFO L93 Difference]: Finished difference Result 1803 states and 2781 transitions. [2023-12-20 14:41:44,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 14:41:44,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2023-12-20 14:41:44,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:44,265 INFO L225 Difference]: With dead ends: 1803 [2023-12-20 14:41:44,265 INFO L226 Difference]: Without dead ends: 1801 [2023-12-20 14:41:44,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 14:41:44,266 INFO L413 NwaCegarLoop]: 1599 mSDtfsCounter, 1 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4789 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:44,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4789 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:44,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-12-20 14:41:44,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2023-12-20 14:41:44,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.5442404006677797) internal successors, (2775), 1798 states have internal predecessors, (2775), 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) [2023-12-20 14:41:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2775 transitions. [2023-12-20 14:41:44,293 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2775 transitions. Word has length 90 [2023-12-20 14:41:44,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:44,293 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2775 transitions. [2023-12-20 14:41:44,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2023-12-20 14:41:44,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2775 transitions. [2023-12-20 14:41:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:44,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:44,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:44,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 14:41:44,294 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:44,295 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:44,295 INFO L85 PathProgramCache]: Analyzing trace with hash -728003923, now seen corresponding path program 1 times [2023-12-20 14:41:44,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:44,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950431071] [2023-12-20 14:41:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:44,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:44,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950431071] [2023-12-20 14:41:44,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950431071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:44,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:44,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:44,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017926871] [2023-12-20 14:41:44,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:44,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:44,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:44,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:44,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:44,356 INFO L87 Difference]: Start difference. First operand 1799 states and 2775 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:44,383 INFO L93 Difference]: Finished difference Result 2241 states and 3475 transitions. [2023-12-20 14:41:44,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:44,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:44,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:44,390 INFO L225 Difference]: With dead ends: 2241 [2023-12-20 14:41:44,390 INFO L226 Difference]: Without dead ends: 2012 [2023-12-20 14:41:44,393 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 [2023-12-20 14:41:44,394 INFO L413 NwaCegarLoop]: 1675 mSDtfsCounter, 1525 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:44,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:44,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2023-12-20 14:41:44,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2010. [2023-12-20 14:41:44,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 2008 states have (on average 1.546812749003984) internal successors, (3106), 2009 states have internal predecessors, (3106), 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) [2023-12-20 14:41:44,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 3106 transitions. [2023-12-20 14:41:44,428 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 3106 transitions. Word has length 91 [2023-12-20 14:41:44,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:44,428 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 3106 transitions. [2023-12-20 14:41:44,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 3106 transitions. [2023-12-20 14:41:44,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:44,429 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:44,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:44,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 14:41:44,430 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:44,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:44,430 INFO L85 PathProgramCache]: Analyzing trace with hash 27380141, now seen corresponding path program 1 times [2023-12-20 14:41:44,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:44,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896071468] [2023-12-20 14:41:44,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:44,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:44,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:44,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896071468] [2023-12-20 14:41:44,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896071468] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:44,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:44,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:44,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824436067] [2023-12-20 14:41:44,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:44,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:44,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:44,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:44,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:44,492 INFO L87 Difference]: Start difference. First operand 2010 states and 3106 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:44,526 INFO L93 Difference]: Finished difference Result 2858 states and 4440 transitions. [2023-12-20 14:41:44,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:44,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:44,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:44,536 INFO L225 Difference]: With dead ends: 2858 [2023-12-20 14:41:44,536 INFO L226 Difference]: Without dead ends: 2418 [2023-12-20 14:41:44,539 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 [2023-12-20 14:41:44,540 INFO L413 NwaCegarLoop]: 1673 mSDtfsCounter, 1523 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:44,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:44,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2418 states. [2023-12-20 14:41:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2418 to 2416. [2023-12-20 14:41:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2416 states, 2414 states have (on average 1.5476387738193869) internal successors, (3736), 2415 states have internal predecessors, (3736), 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) [2023-12-20 14:41:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2416 states to 2416 states and 3736 transitions. [2023-12-20 14:41:44,585 INFO L78 Accepts]: Start accepts. Automaton has 2416 states and 3736 transitions. Word has length 91 [2023-12-20 14:41:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:44,585 INFO L495 AbstractCegarLoop]: Abstraction has 2416 states and 3736 transitions. [2023-12-20 14:41:44,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2416 states and 3736 transitions. [2023-12-20 14:41:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:44,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:44,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:44,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 14:41:44,596 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:44,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash -651589715, now seen corresponding path program 1 times [2023-12-20 14:41:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:44,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189602370] [2023-12-20 14:41:44,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:44,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:44,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:44,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189602370] [2023-12-20 14:41:44,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189602370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:44,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27647546] [2023-12-20 14:41:44,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:44,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:44,672 INFO L87 Difference]: Start difference. First operand 2416 states and 3736 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:44,715 INFO L93 Difference]: Finished difference Result 4044 states and 6274 transitions. [2023-12-20 14:41:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:44,724 INFO L225 Difference]: With dead ends: 4044 [2023-12-20 14:41:44,724 INFO L226 Difference]: Without dead ends: 3198 [2023-12-20 14:41:44,726 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 [2023-12-20 14:41:44,726 INFO L413 NwaCegarLoop]: 1661 mSDtfsCounter, 1519 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:44,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1776 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3198 states. [2023-12-20 14:41:44,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3198 to 3196. [2023-12-20 14:41:44,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3194 states have (on average 1.5441452723857232) internal successors, (4932), 3195 states have internal predecessors, (4932), 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) [2023-12-20 14:41:44,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4932 transitions. [2023-12-20 14:41:44,784 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4932 transitions. Word has length 91 [2023-12-20 14:41:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:44,784 INFO L495 AbstractCegarLoop]: Abstraction has 3196 states and 4932 transitions. [2023-12-20 14:41:44,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4932 transitions. [2023-12-20 14:41:44,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:44,786 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:44,786 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:44,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 14:41:44,786 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:44,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:44,786 INFO L85 PathProgramCache]: Analyzing trace with hash -611645779, now seen corresponding path program 1 times [2023-12-20 14:41:44,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:44,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772024723] [2023-12-20 14:41:44,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:44,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:44,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:44,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772024723] [2023-12-20 14:41:44,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772024723] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:44,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:44,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:44,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650518891] [2023-12-20 14:41:44,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:44,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:44,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:44,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:44,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:44,842 INFO L87 Difference]: Start difference. First operand 3196 states and 4932 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:44,906 INFO L93 Difference]: Finished difference Result 6320 states and 9750 transitions. [2023-12-20 14:41:44,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:44,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:44,932 INFO L225 Difference]: With dead ends: 6320 [2023-12-20 14:41:44,932 INFO L226 Difference]: Without dead ends: 4694 [2023-12-20 14:41:44,935 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 [2023-12-20 14:41:44,936 INFO L413 NwaCegarLoop]: 1659 mSDtfsCounter, 1517 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1517 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:44,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1517 Valid, 1778 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:44,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2023-12-20 14:41:45,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4692. [2023-12-20 14:41:45,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 4690 states have (on average 1.5343283582089553) internal successors, (7196), 4691 states have internal predecessors, (7196), 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) [2023-12-20 14:41:45,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 7196 transitions. [2023-12-20 14:41:45,040 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 7196 transitions. Word has length 91 [2023-12-20 14:41:45,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:45,040 INFO L495 AbstractCegarLoop]: Abstraction has 4692 states and 7196 transitions. [2023-12-20 14:41:45,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:45,041 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 7196 transitions. [2023-12-20 14:41:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:45,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:45,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:45,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 14:41:45,042 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:45,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:45,043 INFO L85 PathProgramCache]: Analyzing trace with hash -348568403, now seen corresponding path program 1 times [2023-12-20 14:41:45,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:45,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109288654] [2023-12-20 14:41:45,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:45,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:45,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:45,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109288654] [2023-12-20 14:41:45,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109288654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:45,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:45,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:45,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862720868] [2023-12-20 14:41:45,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:45,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:45,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:45,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:45,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:45,103 INFO L87 Difference]: Start difference. First operand 4692 states and 7196 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:45,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:45,286 INFO L93 Difference]: Finished difference Result 10680 states and 16318 transitions. [2023-12-20 14:41:45,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:45,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:45,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:45,298 INFO L225 Difference]: With dead ends: 10680 [2023-12-20 14:41:45,299 INFO L226 Difference]: Without dead ends: 7558 [2023-12-20 14:41:45,303 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 [2023-12-20 14:41:45,304 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 1513 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:45,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1513 Valid, 1774 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:45,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7558 states. [2023-12-20 14:41:45,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7558 to 7556. [2023-12-20 14:41:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7556 states, 7554 states have (on average 1.5181360868414084) internal successors, (11468), 7555 states have internal predecessors, (11468), 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) [2023-12-20 14:41:45,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 11468 transitions. [2023-12-20 14:41:45,509 INFO L78 Accepts]: Start accepts. Automaton has 7556 states and 11468 transitions. Word has length 91 [2023-12-20 14:41:45,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:45,509 INFO L495 AbstractCegarLoop]: Abstraction has 7556 states and 11468 transitions. [2023-12-20 14:41:45,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7556 states and 11468 transitions. [2023-12-20 14:41:45,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:45,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:45,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:45,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 14:41:45,511 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:45,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1237301843, now seen corresponding path program 1 times [2023-12-20 14:41:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:45,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214896695] [2023-12-20 14:41:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:45,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:45,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:45,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214896695] [2023-12-20 14:41:45,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214896695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:45,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:45,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215493580] [2023-12-20 14:41:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:45,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:45,579 INFO L87 Difference]: Start difference. First operand 7556 states and 11468 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:45,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:45,762 INFO L93 Difference]: Finished difference Result 19016 states and 28686 transitions. [2023-12-20 14:41:45,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:45,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:45,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:45,785 INFO L225 Difference]: With dead ends: 19016 [2023-12-20 14:41:45,785 INFO L226 Difference]: Without dead ends: 13030 [2023-12-20 14:41:45,796 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 [2023-12-20 14:41:45,797 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 1515 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:45,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1780 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:45,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13030 states. [2023-12-20 14:41:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13030 to 13028. [2023-12-20 14:41:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13028 states, 13026 states have (on average 1.4970059880239521) internal successors, (19500), 13027 states have internal predecessors, (19500), 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) [2023-12-20 14:41:46,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13028 states to 13028 states and 19500 transitions. [2023-12-20 14:41:46,102 INFO L78 Accepts]: Start accepts. Automaton has 13028 states and 19500 transitions. Word has length 91 [2023-12-20 14:41:46,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:46,102 INFO L495 AbstractCegarLoop]: Abstraction has 13028 states and 19500 transitions. [2023-12-20 14:41:46,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:46,102 INFO L276 IsEmpty]: Start isEmpty. Operand 13028 states and 19500 transitions. [2023-12-20 14:41:46,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 14:41:46,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:46,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:46,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 14:41:46,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:46,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:46,104 INFO L85 PathProgramCache]: Analyzing trace with hash -383006547, now seen corresponding path program 1 times [2023-12-20 14:41:46,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:46,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048793061] [2023-12-20 14:41:46,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:46,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:46,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:46,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:46,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048793061] [2023-12-20 14:41:46,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048793061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:46,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:46,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:46,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299833555] [2023-12-20 14:41:46,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:46,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:46,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:46,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:46,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:46,159 INFO L87 Difference]: Start difference. First operand 13028 states and 19500 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:46,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:46,573 INFO L93 Difference]: Finished difference Result 34920 states and 51886 transitions. [2023-12-20 14:41:46,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:46,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2023-12-20 14:41:46,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:46,615 INFO L225 Difference]: With dead ends: 34920 [2023-12-20 14:41:46,616 INFO L226 Difference]: Without dead ends: 23462 [2023-12-20 14:41:46,635 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 [2023-12-20 14:41:46,635 INFO L413 NwaCegarLoop]: 1671 mSDtfsCounter, 1521 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:46,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1521 Valid, 1782 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:46,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23462 states. [2023-12-20 14:41:47,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23462 to 23460. [2023-12-20 14:41:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23460 states, 23458 states have (on average 1.4724187910307784) internal successors, (34540), 23459 states have internal predecessors, (34540), 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) [2023-12-20 14:41:47,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23460 states to 23460 states and 34540 transitions. [2023-12-20 14:41:47,316 INFO L78 Accepts]: Start accepts. Automaton has 23460 states and 34540 transitions. Word has length 91 [2023-12-20 14:41:47,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:47,316 INFO L495 AbstractCegarLoop]: Abstraction has 23460 states and 34540 transitions. [2023-12-20 14:41:47,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2023-12-20 14:41:47,316 INFO L276 IsEmpty]: Start isEmpty. Operand 23460 states and 34540 transitions. [2023-12-20 14:41:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 14:41:47,317 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:47,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:47,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 14:41:47,317 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:47,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1700611410, now seen corresponding path program 1 times [2023-12-20 14:41:47,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:47,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164272658] [2023-12-20 14:41:47,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:47,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:47,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:47,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164272658] [2023-12-20 14:41:47,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164272658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:47,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:47,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 14:41:47,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013690968] [2023-12-20 14:41:47,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:47,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:47,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:47,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:47,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:47,371 INFO L87 Difference]: Start difference. First operand 23460 states and 34540 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-20 14:41:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:47,951 INFO L93 Difference]: Finished difference Result 45995 states and 68082 transitions. [2023-12-20 14:41:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:47,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2023-12-20 14:41:47,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:48,009 INFO L225 Difference]: With dead ends: 45995 [2023-12-20 14:41:48,010 INFO L226 Difference]: Without dead ends: 33960 [2023-12-20 14:41:48,033 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 [2023-12-20 14:41:48,034 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1524 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:48,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1779 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 14:41:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33960 states. [2023-12-20 14:41:48,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33960 to 33958. [2023-12-20 14:41:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33958 states, 33956 states have (on average 1.4658381434797974) internal successors, (49774), 33957 states have internal predecessors, (49774), 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) [2023-12-20 14:41:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33958 states to 33958 states and 49774 transitions. [2023-12-20 14:41:48,833 INFO L78 Accepts]: Start accepts. Automaton has 33958 states and 49774 transitions. Word has length 93 [2023-12-20 14:41:48,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:48,833 INFO L495 AbstractCegarLoop]: Abstraction has 33958 states and 49774 transitions. [2023-12-20 14:41:48,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2023-12-20 14:41:48,834 INFO L276 IsEmpty]: Start isEmpty. Operand 33958 states and 49774 transitions. [2023-12-20 14:41:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-20 14:41:48,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:48,834 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 14:41:48,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 14:41:48,835 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:48,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:48,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1969063787, now seen corresponding path program 1 times [2023-12-20 14:41:48,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:48,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160832480] [2023-12-20 14:41:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:48,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-20 14:41:49,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:49,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160832480] [2023-12-20 14:41:49,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160832480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:49,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:49,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 14:41:49,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431048528] [2023-12-20 14:41:49,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:49,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:49,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:49,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:49,010 INFO L87 Difference]: Start difference. First operand 33958 states and 49774 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 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) [2023-12-20 14:41:51,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:51,948 INFO L93 Difference]: Finished difference Result 36964 states and 54461 transitions. [2023-12-20 14:41:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:51,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 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 94 [2023-12-20 14:41:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:52,010 INFO L225 Difference]: With dead ends: 36964 [2023-12-20 14:41:52,010 INFO L226 Difference]: Without dead ends: 35460 [2023-12-20 14:41:52,019 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 [2023-12-20 14:41:52,019 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 890 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:52,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 635 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-20 14:41:52,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35460 states. [2023-12-20 14:41:52,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35460 to 35460. [2023-12-20 14:41:52,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35460 states, 35458 states have (on average 1.4538891082407355) internal successors, (51552), 35459 states have internal predecessors, (51552), 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) [2023-12-20 14:41:52,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35460 states to 35460 states and 51552 transitions. [2023-12-20 14:41:52,980 INFO L78 Accepts]: Start accepts. Automaton has 35460 states and 51552 transitions. Word has length 94 [2023-12-20 14:41:52,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:52,980 INFO L495 AbstractCegarLoop]: Abstraction has 35460 states and 51552 transitions. [2023-12-20 14:41:52,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 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) [2023-12-20 14:41:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 35460 states and 51552 transitions. [2023-12-20 14:41:52,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 14:41:52,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:52,981 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 14:41:52,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 14:41:52,981 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:52,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:52,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1646956380, now seen corresponding path program 1 times [2023-12-20 14:41:52,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:52,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335933710] [2023-12-20 14:41:52,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:52,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 14:41:53,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:53,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335933710] [2023-12-20 14:41:53,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335933710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:53,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:53,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 14:41:53,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936350874] [2023-12-20 14:41:53,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:53,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 14:41:53,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:53,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 14:41:53,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 14:41:53,081 INFO L87 Difference]: Start difference. First operand 35460 states and 51552 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-12-20 14:41:55,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:41:55,989 INFO L93 Difference]: Finished difference Result 41472 states and 59796 transitions. [2023-12-20 14:41:55,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 14:41:55,989 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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 100 [2023-12-20 14:41:55,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:41:56,033 INFO L225 Difference]: With dead ends: 41472 [2023-12-20 14:41:56,033 INFO L226 Difference]: Without dead ends: 38466 [2023-12-20 14:41:56,044 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 [2023-12-20 14:41:56,045 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1078 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 14:41:56,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 513 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 14:41:56,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38466 states. [2023-12-20 14:41:56,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38466 to 38464. [2023-12-20 14:41:56,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38464 states, 38462 states have (on average 1.4320368155582133) internal successors, (55079), 38463 states have internal predecessors, (55079), 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) [2023-12-20 14:41:56,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38464 states to 38464 states and 55079 transitions. [2023-12-20 14:41:56,845 INFO L78 Accepts]: Start accepts. Automaton has 38464 states and 55079 transitions. Word has length 100 [2023-12-20 14:41:56,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:41:56,845 INFO L495 AbstractCegarLoop]: Abstraction has 38464 states and 55079 transitions. [2023-12-20 14:41:56,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-12-20 14:41:56,845 INFO L276 IsEmpty]: Start isEmpty. Operand 38464 states and 55079 transitions. [2023-12-20 14:41:56,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 14:41:56,851 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:41:56,851 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-20 14:41:56,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 14:41:56,851 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:41:56,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:41:56,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1717316400, now seen corresponding path program 1 times [2023-12-20 14:41:56,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:41:56,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753681813] [2023-12-20 14:41:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:41:56,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:41:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:41:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-20 14:41:57,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:41:57,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753681813] [2023-12-20 14:41:57,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753681813] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:41:57,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:41:57,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:41:57,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288485031] [2023-12-20 14:41:57,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:41:57,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:41:57,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:41:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:41:57,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:41:57,060 INFO L87 Difference]: Start difference. First operand 38464 states and 55079 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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) [2023-12-20 14:42:01,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:42:01,022 INFO L93 Difference]: Finished difference Result 303954 states and 443056 transitions. [2023-12-20 14:42:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 14:42:01,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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 115 [2023-12-20 14:42:01,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:42:01,580 INFO L225 Difference]: With dead ends: 303954 [2023-12-20 14:42:01,580 INFO L226 Difference]: Without dead ends: 271568 [2023-12-20 14:42:01,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-20 14:42:01,627 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 11812 mSDsluCounter, 3228 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11812 SdHoareTripleChecker+Valid, 4926 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:42:01,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11812 Valid, 4926 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:42:01,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271568 states. [2023-12-20 14:42:04,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271568 to 70848. [2023-12-20 14:42:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70848 states, 70846 states have (on average 1.4405188719193744) internal successors, (102055), 70847 states have internal predecessors, (102055), 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) [2023-12-20 14:42:04,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70848 states to 70848 states and 102055 transitions. [2023-12-20 14:42:04,590 INFO L78 Accepts]: Start accepts. Automaton has 70848 states and 102055 transitions. Word has length 115 [2023-12-20 14:42:04,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:42:04,590 INFO L495 AbstractCegarLoop]: Abstraction has 70848 states and 102055 transitions. [2023-12-20 14:42:04,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 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) [2023-12-20 14:42:04,591 INFO L276 IsEmpty]: Start isEmpty. Operand 70848 states and 102055 transitions. [2023-12-20 14:42:04,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 14:42:04,597 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:42:04,597 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-20 14:42:04,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 14:42:04,597 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:42:04,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:42:04,597 INFO L85 PathProgramCache]: Analyzing trace with hash -961932336, now seen corresponding path program 1 times [2023-12-20 14:42:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:42:04,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024050251] [2023-12-20 14:42:04,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:42:04,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:42:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:42:04,805 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 14:42:04,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:42:04,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024050251] [2023-12-20 14:42:04,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024050251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:42:04,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:42:04,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:42:04,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317706864] [2023-12-20 14:42:04,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:42:04,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:42:04,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:42:04,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:42:04,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:42:04,807 INFO L87 Difference]: Start difference. First operand 70848 states and 102055 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2023-12-20 14:42:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:42:10,611 INFO L93 Difference]: Finished difference Result 336338 states and 490032 transitions. [2023-12-20 14:42:10,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 14:42:10,612 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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 115 [2023-12-20 14:42:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:42:11,169 INFO L225 Difference]: With dead ends: 336338 [2023-12-20 14:42:11,169 INFO L226 Difference]: Without dead ends: 303952 [2023-12-20 14:42:11,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-20 14:42:11,234 INFO L413 NwaCegarLoop]: 1695 mSDtfsCounter, 11856 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11856 SdHoareTripleChecker+Valid, 4769 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:42:11,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11856 Valid, 4769 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:42:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303952 states. [2023-12-20 14:42:15,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303952 to 119488. [2023-12-20 14:42:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119488 states, 119486 states have (on average 1.4411646552734212) internal successors, (172199), 119487 states have internal predecessors, (172199), 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) [2023-12-20 14:42:16,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119488 states to 119488 states and 172199 transitions. [2023-12-20 14:42:16,016 INFO L78 Accepts]: Start accepts. Automaton has 119488 states and 172199 transitions. Word has length 115 [2023-12-20 14:42:16,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:42:16,016 INFO L495 AbstractCegarLoop]: Abstraction has 119488 states and 172199 transitions. [2023-12-20 14:42:16,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 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) [2023-12-20 14:42:16,016 INFO L276 IsEmpty]: Start isEmpty. Operand 119488 states and 172199 transitions. [2023-12-20 14:42:16,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 14:42:16,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:42:16,024 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-20 14:42:16,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 14:42:16,024 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:42:16,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:42:16,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1640902192, now seen corresponding path program 1 times [2023-12-20 14:42:16,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:42:16,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982406586] [2023-12-20 14:42:16,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:42:16,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:42:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:42:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 14:42:16,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:42:16,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982406586] [2023-12-20 14:42:16,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982406586] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:42:16,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:42:16,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:42:16,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695972484] [2023-12-20 14:42:16,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:42:16,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:42:16,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:42:16,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:42:16,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:42:16,417 INFO L87 Difference]: Start difference. First operand 119488 states and 172199 transitions. Second operand has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2023-12-20 14:42:23,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:42:23,378 INFO L93 Difference]: Finished difference Result 368722 states and 537008 transitions. [2023-12-20 14:42:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 14:42:23,379 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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 115 [2023-12-20 14:42:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:42:24,126 INFO L225 Difference]: With dead ends: 368722 [2023-12-20 14:42:24,126 INFO L226 Difference]: Without dead ends: 336336 [2023-12-20 14:42:24,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-20 14:42:24,184 INFO L413 NwaCegarLoop]: 1692 mSDtfsCounter, 11923 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11923 SdHoareTripleChecker+Valid, 4797 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:42:24,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11923 Valid, 4797 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:42:24,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336336 states. [2023-12-20 14:42:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336336 to 151872. [2023-12-20 14:42:29,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151872 states, 151870 states have (on average 1.4431750839533812) internal successors, (219175), 151871 states have internal predecessors, (219175), 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) [2023-12-20 14:42:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151872 states to 151872 states and 219175 transitions. [2023-12-20 14:42:30,322 INFO L78 Accepts]: Start accepts. Automaton has 151872 states and 219175 transitions. Word has length 115 [2023-12-20 14:42:30,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:42:30,322 INFO L495 AbstractCegarLoop]: Abstraction has 151872 states and 219175 transitions. [2023-12-20 14:42:30,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.6) internal successors, (106), 10 states have internal predecessors, (106), 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) [2023-12-20 14:42:30,322 INFO L276 IsEmpty]: Start isEmpty. Operand 151872 states and 219175 transitions. [2023-12-20 14:42:30,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 14:42:30,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:42:30,329 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-20 14:42:30,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 14:42:30,329 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:42:30,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:42:30,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1600958256, now seen corresponding path program 1 times [2023-12-20 14:42:30,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:42:30,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841602976] [2023-12-20 14:42:30,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:42:30,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:42:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:42:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-20 14:42:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:42:30,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841602976] [2023-12-20 14:42:30,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841602976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:42:30,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:42:30,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:42:30,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117254928] [2023-12-20 14:42:30,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:42:30,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:42:30,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:42:30,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:42:30,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:42:30,514 INFO L87 Difference]: Start difference. First operand 151872 states and 219175 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2023-12-20 14:42:38,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:42:38,808 INFO L93 Difference]: Finished difference Result 401106 states and 583984 transitions. [2023-12-20 14:42:38,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 14:42:38,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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 115 [2023-12-20 14:42:38,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:42:39,566 INFO L225 Difference]: With dead ends: 401106 [2023-12-20 14:42:39,566 INFO L226 Difference]: Without dead ends: 368720 [2023-12-20 14:42:39,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-20 14:42:39,614 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 12148 mSDsluCounter, 2987 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12148 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:42:39,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12148 Valid, 4676 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:42:39,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368720 states. [2023-12-20 14:42:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368720 to 184256. [2023-12-20 14:42:46,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184256 states, 184254 states have (on average 1.444478817284835) internal successors, (266151), 184255 states have internal predecessors, (266151), 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) [2023-12-20 14:42:46,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184256 states to 184256 states and 266151 transitions. [2023-12-20 14:42:46,821 INFO L78 Accepts]: Start accepts. Automaton has 184256 states and 266151 transitions. Word has length 115 [2023-12-20 14:42:46,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 14:42:46,822 INFO L495 AbstractCegarLoop]: Abstraction has 184256 states and 266151 transitions. [2023-12-20 14:42:46,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 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) [2023-12-20 14:42:46,822 INFO L276 IsEmpty]: Start isEmpty. Operand 184256 states and 266151 transitions. [2023-12-20 14:42:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 14:42:46,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 14:42:46,829 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2023-12-20 14:42:46,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 14:42:46,829 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 14:42:46,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 14:42:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1337880880, now seen corresponding path program 1 times [2023-12-20 14:42:46,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 14:42:46,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347680553] [2023-12-20 14:42:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 14:42:46,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 14:42:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 14:42:47,030 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-20 14:42:47,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 14:42:47,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347680553] [2023-12-20 14:42:47,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347680553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 14:42:47,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 14:42:47,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-20 14:42:47,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237919817] [2023-12-20 14:42:47,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 14:42:47,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 14:42:47,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 14:42:47,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 14:42:47,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-20 14:42:47,031 INFO L87 Difference]: Start difference. First operand 184256 states and 266151 transitions. Second operand has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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) [2023-12-20 14:42:56,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 14:42:56,638 INFO L93 Difference]: Finished difference Result 433490 states and 630960 transitions. [2023-12-20 14:42:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 14:42:56,640 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.0) internal successors, (100), 10 states have internal predecessors, (100), 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 115 [2023-12-20 14:42:56,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 14:42:57,495 INFO L225 Difference]: With dead ends: 433490 [2023-12-20 14:42:57,495 INFO L226 Difference]: Without dead ends: 401104 [2023-12-20 14:42:57,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-20 14:42:57,564 INFO L413 NwaCegarLoop]: 1688 mSDtfsCounter, 11989 mSDsluCounter, 3078 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11989 SdHoareTripleChecker+Valid, 4766 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 14:42:57,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11989 Valid, 4766 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 14:42:57,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401104 states.