/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_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:04:32,797 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:04:32,834 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:04:32,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:04:32,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:04:32,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:04:32,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:04:32,851 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:04:32,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:04:32,852 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:04:32,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:04:32,852 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:04:32,853 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:04:32,853 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:04:32,853 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:04:32,853 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:04:32,854 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:04:32,854 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:04:32,854 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:04:32,854 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:04:32,855 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:04:32,855 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:04:32,855 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:04:32,855 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:04:32,856 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:04:32,856 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:04:32,856 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:04:32,856 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:04:32,856 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:04:32,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:04:32,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:04:32,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:04:32,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:04:32,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:04:32,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:04:32,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:04:32,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:04:32,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:04:32,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:04:32,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:04:32,858 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:04:32,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:04:32,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:04:32,859 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:04:33,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:04:33,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:04:33,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:04:33,023 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:04:33,023 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:04:33,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c [2023-12-16 01:04:34,148 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:04:34,526 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:04:34,527 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c [2023-12-16 01:04:34,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfcdf24d/90e4c4b12f69437f863bf0009117115c/FLAGed2b83b81 [2023-12-16 01:04:34,573 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dcfcdf24d/90e4c4b12f69437f863bf0009117115c [2023-12-16 01:04:34,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:04:34,577 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:04:34,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:04:34,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:04:34,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:04:34,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:04:34" (1/1) ... [2023-12-16 01:04:34,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b19b8f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:34, skipping insertion in model container [2023-12-16 01:04:34,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:04:34" (1/1) ... [2023-12-16 01:04:34,677 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:04:35,114 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_label03.c[26888,26901] [2023-12-16 01:04:35,152 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_label03.c[29225,29238] [2023-12-16 01:04:35,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:04:35,672 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:04:35,725 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_label03.c[26888,26901] [2023-12-16 01:04:35,743 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_label03.c[29225,29238] [2023-12-16 01:04:36,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:04:36,037 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:04:36,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36 WrapperNode [2023-12-16 01:04:36,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:04:36,040 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:04:36,040 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:04:36,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:04:36,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,382 INFO L138 Inliner]: procedures = 40, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5283 [2023-12-16 01:04:36,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:04:36,383 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:04:36,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:04:36,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:04:36,392 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,435 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,583 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:04:36,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,725 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:04:36,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:04:36,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:04:36,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:04:36,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (1/1) ... [2023-12-16 01:04:36,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:04:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:04:36,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:04:36,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:04:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:04:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:04:36,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:04:36,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:04:37,007 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:04:37,008 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:04:40,247 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:04:40,290 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:04:40,290 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 01:04:40,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:04:40 BoogieIcfgContainer [2023-12-16 01:04:40,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:04:40,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:04:40,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:04:40,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:04:40,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:04:34" (1/3) ... [2023-12-16 01:04:40,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0bc899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:04:40, skipping insertion in model container [2023-12-16 01:04:40,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:04:36" (2/3) ... [2023-12-16 01:04:40,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0bc899 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:04:40, skipping insertion in model container [2023-12-16 01:04:40,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:04:40" (3/3) ... [2023-12-16 01:04:40,296 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals+Problem12_label03.c [2023-12-16 01:04:40,308 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:04:40,308 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:04:40,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:04:40,357 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;@1e5967ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:04:40,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:04:40,364 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) [2023-12-16 01:04:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 01:04:40,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:40,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:04:40,370 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:40,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:40,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1712849582, now seen corresponding path program 1 times [2023-12-16 01:04:40,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:40,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338146008] [2023-12-16 01:04:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:40,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:40,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:40,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:40,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338146008] [2023-12-16 01:04:40,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338146008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:40,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:40,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:04:40,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028210962] [2023-12-16 01:04:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:40,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:04:40,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:40,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:04:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:04:40,540 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 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:40,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:40,602 INFO L93 Difference]: Finished difference Result 1702 states and 3341 transitions. [2023-12-16 01:04:40,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:04:40,604 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2023-12-16 01:04:40,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:40,616 INFO L225 Difference]: With dead ends: 1702 [2023-12-16 01:04:40,616 INFO L226 Difference]: Without dead ends: 880 [2023-12-16 01:04:40,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:04:40,622 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 [2023-12-16 01:04:40,623 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] [2023-12-16 01:04:40,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-12-16 01:04:40,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 880. [2023-12-16 01:04:40,692 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) [2023-12-16 01:04:40,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1664 transitions. [2023-12-16 01:04:40,695 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1664 transitions. Word has length 19 [2023-12-16 01:04:40,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:40,696 INFO L495 AbstractCegarLoop]: Abstraction has 880 states and 1664 transitions. [2023-12-16 01:04:40,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:40,696 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1664 transitions. [2023-12-16 01:04:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-16 01:04:40,697 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:40,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:04:40,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:04:40,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:40,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:40,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1208531677, now seen corresponding path program 1 times [2023-12-16 01:04:40,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:40,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990032320] [2023-12-16 01:04:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:40,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:40,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:40,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990032320] [2023-12-16 01:04:40,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990032320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:40,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:40,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:04:40,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993246123] [2023-12-16 01:04:40,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:40,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:40,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:40,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:40,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:40,832 INFO L87 Difference]: Start difference. First operand 880 states and 1664 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:43,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:43,495 INFO L93 Difference]: Finished difference Result 2384 states and 4537 transitions. [2023-12-16 01:04:43,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:43,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 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 19 [2023-12-16 01:04:43,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:43,504 INFO L225 Difference]: With dead ends: 2384 [2023-12-16 01:04:43,504 INFO L226 Difference]: Without dead ends: 1631 [2023-12-16 01:04:43,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:43,506 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 1024 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:04:43,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 650 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 01:04:43,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-16 01:04:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-16 01:04:43,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.6519337016574585) internal successors, (2691), 1630 states have internal predecessors, (2691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:43,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2691 transitions. [2023-12-16 01:04:43,547 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2691 transitions. Word has length 19 [2023-12-16 01:04:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:43,548 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2691 transitions. [2023-12-16 01:04:43,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2691 transitions. [2023-12-16 01:04:43,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-16 01:04:43,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:43,549 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] [2023-12-16 01:04:43,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:04:43,549 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:43,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:43,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1038166230, now seen corresponding path program 1 times [2023-12-16 01:04:43,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:43,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670713187] [2023-12-16 01:04:43,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:43,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:43,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:43,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670713187] [2023-12-16 01:04:43,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670713187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:43,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:43,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:04:43,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200088078] [2023-12-16 01:04:43,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:43,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:04:43,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:43,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:04:43,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:04:43,733 INFO L87 Difference]: Start difference. First operand 1631 states and 2691 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) [2023-12-16 01:04:43,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:43,808 INFO L93 Difference]: Finished difference Result 1695 states and 2793 transitions. [2023-12-16 01:04:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:04:43,808 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 [2023-12-16 01:04:43,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:43,812 INFO L225 Difference]: With dead ends: 1695 [2023-12-16 01:04:43,813 INFO L226 Difference]: Without dead ends: 1631 [2023-12-16 01:04:43,813 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 [2023-12-16 01:04:43,814 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 [2023-12-16 01:04:43,814 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] [2023-12-16 01:04:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2023-12-16 01:04:43,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2023-12-16 01:04:43,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1629 states have (on average 1.614487415592388) internal successors, (2630), 1630 states have internal predecessors, (2630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:43,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2630 transitions. [2023-12-16 01:04:43,834 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2630 transitions. Word has length 27 [2023-12-16 01:04:43,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:43,834 INFO L495 AbstractCegarLoop]: Abstraction has 1631 states and 2630 transitions. [2023-12-16 01:04:43,834 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) [2023-12-16 01:04:43,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2630 transitions. [2023-12-16 01:04:43,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-16 01:04:43,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:43,836 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] [2023-12-16 01:04:43,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:04:43,837 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:43,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:43,837 INFO L85 PathProgramCache]: Analyzing trace with hash 64150534, now seen corresponding path program 1 times [2023-12-16 01:04:43,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:43,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56403514] [2023-12-16 01:04:43,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:43,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:44,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:44,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56403514] [2023-12-16 01:04:44,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56403514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:44,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:44,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:04:44,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450499482] [2023-12-16 01:04:44,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:44,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:04:44,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:44,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:04:44,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:04:44,051 INFO L87 Difference]: Start difference. First operand 1631 states and 2630 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) [2023-12-16 01:04:44,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:44,498 INFO L93 Difference]: Finished difference Result 2607 states and 4214 transitions. [2023-12-16 01:04:44,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 01:04:44,498 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 [2023-12-16 01:04:44,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:44,506 INFO L225 Difference]: With dead ends: 2607 [2023-12-16 01:04:44,506 INFO L226 Difference]: Without dead ends: 2546 [2023-12-16 01:04:44,507 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 [2023-12-16 01:04:44,512 INFO L413 NwaCegarLoop]: 1594 mSDtfsCounter, 13544 mSDsluCounter, 3889 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:04:44,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13544 Valid, 5483 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:04:44,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2023-12-16 01:04:44,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 1690. [2023-12-16 01:04:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1690 states, 1688 states have (on average 1.6149289099526067) internal successors, (2726), 1689 states have internal predecessors, (2726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 2726 transitions. [2023-12-16 01:04:44,546 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 2726 transitions. Word has length 87 [2023-12-16 01:04:44,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:44,548 INFO L495 AbstractCegarLoop]: Abstraction has 1690 states and 2726 transitions. [2023-12-16 01:04:44,548 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) [2023-12-16 01:04:44,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 2726 transitions. [2023-12-16 01:04:44,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 01:04:44,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:44,552 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] [2023-12-16 01:04:44,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:04:44,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:44,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:44,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1377992502, now seen corresponding path program 1 times [2023-12-16 01:04:44,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:44,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277290956] [2023-12-16 01:04:44,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:44,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:44,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:44,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:44,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277290956] [2023-12-16 01:04:44,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277290956] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:44,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:44,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:44,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243046772] [2023-12-16 01:04:44,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:44,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:44,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:44,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:44,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:44,694 INFO L87 Difference]: Start difference. First operand 1690 states and 2726 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) [2023-12-16 01:04:44,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:44,726 INFO L93 Difference]: Finished difference Result 1919 states and 3097 transitions. [2023-12-16 01:04:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:44,727 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 [2023-12-16 01:04:44,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:44,733 INFO L225 Difference]: With dead ends: 1919 [2023-12-16 01:04:44,733 INFO L226 Difference]: Without dead ends: 1799 [2023-12-16 01:04:44,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:44,734 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 [2023-12-16 01:04:44,734 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] [2023-12-16 01:04:44,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2023-12-16 01:04:44,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1795. [2023-12-16 01:04:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.6140546569994423) internal successors, (2894), 1794 states have internal predecessors, (2894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2894 transitions. [2023-12-16 01:04:44,765 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2894 transitions. Word has length 89 [2023-12-16 01:04:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:44,766 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2894 transitions. [2023-12-16 01:04:44,767 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) [2023-12-16 01:04:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2894 transitions. [2023-12-16 01:04:44,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 01:04:44,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:44,768 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] [2023-12-16 01:04:44,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:04:44,768 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:44,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:44,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1380137454, now seen corresponding path program 1 times [2023-12-16 01:04:44,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:44,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407751698] [2023-12-16 01:04:44,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:44,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:45,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:45,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:45,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407751698] [2023-12-16 01:04:45,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407751698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:45,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:45,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:04:45,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388564540] [2023-12-16 01:04:45,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:45,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:04:45,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:45,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:04:45,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:04:45,187 INFO L87 Difference]: Start difference. First operand 1795 states and 2894 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) [2023-12-16 01:04:45,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:45,570 INFO L93 Difference]: Finished difference Result 2022 states and 3258 transitions. [2023-12-16 01:04:45,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:04:45,571 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 [2023-12-16 01:04:45,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:45,577 INFO L225 Difference]: With dead ends: 2022 [2023-12-16 01:04:45,577 INFO L226 Difference]: Without dead ends: 1797 [2023-12-16 01:04:45,578 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 [2023-12-16 01:04:45,579 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 [2023-12-16 01:04:45,579 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] [2023-12-16 01:04:45,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2023-12-16 01:04:45,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1795. [2023-12-16 01:04:45,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1793 states have (on average 1.6129392080312326) internal successors, (2892), 1794 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2892 transitions. [2023-12-16 01:04:45,611 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2892 transitions. Word has length 89 [2023-12-16 01:04:45,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:45,612 INFO L495 AbstractCegarLoop]: Abstraction has 1795 states and 2892 transitions. [2023-12-16 01:04:45,612 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) [2023-12-16 01:04:45,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2892 transitions. [2023-12-16 01:04:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 01:04:45,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:45,614 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] [2023-12-16 01:04:45,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:04:45,614 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:45,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:45,615 INFO L85 PathProgramCache]: Analyzing trace with hash -294342910, now seen corresponding path program 1 times [2023-12-16 01:04:45,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:45,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640004757] [2023-12-16 01:04:45,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:45,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:45,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:45,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640004757] [2023-12-16 01:04:45,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640004757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:45,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:45,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:04:45,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84975152] [2023-12-16 01:04:45,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:45,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:04:45,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:45,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:04:45,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:04:45,837 INFO L87 Difference]: Start difference. First operand 1795 states and 2892 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) [2023-12-16 01:04:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:45,872 INFO L93 Difference]: Finished difference Result 1803 states and 2901 transitions. [2023-12-16 01:04:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:04:45,873 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 [2023-12-16 01:04:45,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:45,878 INFO L225 Difference]: With dead ends: 1803 [2023-12-16 01:04:45,878 INFO L226 Difference]: Without dead ends: 1801 [2023-12-16 01:04:45,878 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 [2023-12-16 01:04:45,879 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 [2023-12-16 01:04:45,879 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] [2023-12-16 01:04:45,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2023-12-16 01:04:45,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1799. [2023-12-16 01:04:45,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1799 states, 1797 states have (on average 1.6110183639398998) internal successors, (2895), 1798 states have internal predecessors, (2895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1799 states to 1799 states and 2895 transitions. [2023-12-16 01:04:45,914 INFO L78 Accepts]: Start accepts. Automaton has 1799 states and 2895 transitions. Word has length 90 [2023-12-16 01:04:45,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:45,914 INFO L495 AbstractCegarLoop]: Abstraction has 1799 states and 2895 transitions. [2023-12-16 01:04:45,915 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) [2023-12-16 01:04:45,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1799 states and 2895 transitions. [2023-12-16 01:04:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 01:04:45,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:45,918 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 01:04:45,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:04:45,918 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:45,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1795733988, now seen corresponding path program 1 times [2023-12-16 01:04:45,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:45,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541001307] [2023-12-16 01:04:45,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:45,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:46,009 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 01:04:46,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:46,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541001307] [2023-12-16 01:04:46,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541001307] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:46,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:46,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:04:46,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170419206] [2023-12-16 01:04:46,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:46,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:46,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:46,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:46,011 INFO L87 Difference]: Start difference. First operand 1799 states and 2895 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) [2023-12-16 01:04:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:48,814 INFO L93 Difference]: Finished difference Result 4805 states and 7822 transitions. [2023-12-16 01:04:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:48,814 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 90 [2023-12-16 01:04:48,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:48,825 INFO L225 Difference]: With dead ends: 4805 [2023-12-16 01:04:48,825 INFO L226 Difference]: Without dead ends: 3301 [2023-12-16 01:04:48,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:48,830 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 890 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2264 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 2264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:04:48,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 636 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 2264 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 01:04:48,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3301 states. [2023-12-16 01:04:48,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3301 to 3301. [2023-12-16 01:04:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3301 states, 3299 states have (on average 1.4292209760533494) internal successors, (4715), 3300 states have internal predecessors, (4715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:48,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3301 states to 3301 states and 4715 transitions. [2023-12-16 01:04:48,886 INFO L78 Accepts]: Start accepts. Automaton has 3301 states and 4715 transitions. Word has length 90 [2023-12-16 01:04:48,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:48,886 INFO L495 AbstractCegarLoop]: Abstraction has 3301 states and 4715 transitions. [2023-12-16 01:04:48,887 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) [2023-12-16 01:04:48,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3301 states and 4715 transitions. [2023-12-16 01:04:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:48,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:48,888 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] [2023-12-16 01:04:48,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 01:04:48,888 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:48,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1953030514, now seen corresponding path program 1 times [2023-12-16 01:04:48,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:48,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491285887] [2023-12-16 01:04:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:48,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:48,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:48,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491285887] [2023-12-16 01:04:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491285887] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:48,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742969470] [2023-12-16 01:04:48,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:48,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:48,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:48,976 INFO L87 Difference]: Start difference. First operand 3301 states and 4715 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) [2023-12-16 01:04:49,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:49,014 INFO L93 Difference]: Finished difference Result 3743 states and 5415 transitions. [2023-12-16 01:04:49,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:49,015 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 [2023-12-16 01:04:49,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:49,026 INFO L225 Difference]: With dead ends: 3743 [2023-12-16 01:04:49,026 INFO L226 Difference]: Without dead ends: 3514 [2023-12-16 01:04:49,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,030 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 [2023-12-16 01:04:49,031 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] [2023-12-16 01:04:49,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2023-12-16 01:04:49,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3512. [2023-12-16 01:04:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 3510 states have (on average 1.4376068376068376) internal successors, (5046), 3511 states have internal predecessors, (5046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 5046 transitions. [2023-12-16 01:04:49,098 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 5046 transitions. Word has length 91 [2023-12-16 01:04:49,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:49,099 INFO L495 AbstractCegarLoop]: Abstraction has 3512 states and 5046 transitions. [2023-12-16 01:04:49,099 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) [2023-12-16 01:04:49,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 5046 transitions. [2023-12-16 01:04:49,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:49,100 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:49,100 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] [2023-12-16 01:04:49,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:04:49,101 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:49,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1197646450, now seen corresponding path program 1 times [2023-12-16 01:04:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519498554] [2023-12-16 01:04:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:49,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:49,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:49,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519498554] [2023-12-16 01:04:49,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519498554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:49,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:49,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:49,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479266451] [2023-12-16 01:04:49,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:49,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:49,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:49,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:49,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,180 INFO L87 Difference]: Start difference. First operand 3512 states and 5046 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) [2023-12-16 01:04:49,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:49,228 INFO L93 Difference]: Finished difference Result 4360 states and 6380 transitions. [2023-12-16 01:04:49,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:49,228 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 [2023-12-16 01:04:49,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:49,238 INFO L225 Difference]: With dead ends: 4360 [2023-12-16 01:04:49,238 INFO L226 Difference]: Without dead ends: 3920 [2023-12-16 01:04:49,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,239 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 [2023-12-16 01:04:49,240 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] [2023-12-16 01:04:49,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2023-12-16 01:04:49,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3918. [2023-12-16 01:04:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3916 states have (on average 1.449438202247191) internal successors, (5676), 3917 states have internal predecessors, (5676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:49,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5676 transitions. [2023-12-16 01:04:49,314 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 5676 transitions. Word has length 91 [2023-12-16 01:04:49,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:49,314 INFO L495 AbstractCegarLoop]: Abstraction has 3918 states and 5676 transitions. [2023-12-16 01:04:49,314 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) [2023-12-16 01:04:49,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 5676 transitions. [2023-12-16 01:04:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:49,315 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:49,315 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] [2023-12-16 01:04:49,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 01:04:49,316 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:49,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1876616306, now seen corresponding path program 1 times [2023-12-16 01:04:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096213221] [2023-12-16 01:04:49,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:49,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:49,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:49,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:49,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096213221] [2023-12-16 01:04:49,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096213221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:49,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:49,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:49,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764005008] [2023-12-16 01:04:49,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:49,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:49,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:49,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:49,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,393 INFO L87 Difference]: Start difference. First operand 3918 states and 5676 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) [2023-12-16 01:04:49,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:49,445 INFO L93 Difference]: Finished difference Result 5546 states and 8214 transitions. [2023-12-16 01:04:49,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:49,446 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 [2023-12-16 01:04:49,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:49,474 INFO L225 Difference]: With dead ends: 5546 [2023-12-16 01:04:49,474 INFO L226 Difference]: Without dead ends: 4700 [2023-12-16 01:04:49,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,477 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 [2023-12-16 01:04:49,478 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] [2023-12-16 01:04:49,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-12-16 01:04:49,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4698. [2023-12-16 01:04:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4698 states, 4696 states have (on average 1.463373083475298) internal successors, (6872), 4697 states have internal predecessors, (6872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4698 states to 4698 states and 6872 transitions. [2023-12-16 01:04:49,577 INFO L78 Accepts]: Start accepts. Automaton has 4698 states and 6872 transitions. Word has length 91 [2023-12-16 01:04:49,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:49,577 INFO L495 AbstractCegarLoop]: Abstraction has 4698 states and 6872 transitions. [2023-12-16 01:04:49,578 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) [2023-12-16 01:04:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 4698 states and 6872 transitions. [2023-12-16 01:04:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:49,579 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:49,579 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] [2023-12-16 01:04:49,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:04:49,579 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:49,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:49,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1836672370, now seen corresponding path program 1 times [2023-12-16 01:04:49,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:49,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155020071] [2023-12-16 01:04:49,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:49,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:49,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:49,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155020071] [2023-12-16 01:04:49,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155020071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:49,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:49,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:49,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983554418] [2023-12-16 01:04:49,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:49,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:49,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:49,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:49,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,665 INFO L87 Difference]: Start difference. First operand 4698 states and 6872 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) [2023-12-16 01:04:49,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:49,731 INFO L93 Difference]: Finished difference Result 7822 states and 11690 transitions. [2023-12-16 01:04:49,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:49,732 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 [2023-12-16 01:04:49,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:49,742 INFO L225 Difference]: With dead ends: 7822 [2023-12-16 01:04:49,742 INFO L226 Difference]: Without dead ends: 6196 [2023-12-16 01:04:49,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,746 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 [2023-12-16 01:04:49,746 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] [2023-12-16 01:04:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6196 states. [2023-12-16 01:04:49,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6196 to 6194. [2023-12-16 01:04:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 6192 states have (on average 1.475452196382429) internal successors, (9136), 6193 states have internal predecessors, (9136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:49,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 9136 transitions. [2023-12-16 01:04:49,860 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 9136 transitions. Word has length 91 [2023-12-16 01:04:49,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:49,860 INFO L495 AbstractCegarLoop]: Abstraction has 6194 states and 9136 transitions. [2023-12-16 01:04:49,860 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) [2023-12-16 01:04:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 9136 transitions. [2023-12-16 01:04:49,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:49,861 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:49,861 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] [2023-12-16 01:04:49,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:04:49,861 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:49,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1573594994, now seen corresponding path program 1 times [2023-12-16 01:04:49,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:49,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077050061] [2023-12-16 01:04:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:49,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:49,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077050061] [2023-12-16 01:04:49,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077050061] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:49,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:49,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:49,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825641066] [2023-12-16 01:04:49,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:49,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:49,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:49,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:49,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:49,925 INFO L87 Difference]: Start difference. First operand 6194 states and 9136 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) [2023-12-16 01:04:50,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:50,080 INFO L93 Difference]: Finished difference Result 12182 states and 18258 transitions. [2023-12-16 01:04:50,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:50,081 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 [2023-12-16 01:04:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:50,095 INFO L225 Difference]: With dead ends: 12182 [2023-12-16 01:04:50,095 INFO L226 Difference]: Without dead ends: 9060 [2023-12-16 01:04:50,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:50,099 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 [2023-12-16 01:04:50,100 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] [2023-12-16 01:04:50,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9060 states. [2023-12-16 01:04:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9060 to 9058. [2023-12-16 01:04:50,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9058 states, 9056 states have (on average 1.480565371024735) internal successors, (13408), 9057 states have internal predecessors, (13408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:50,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9058 states to 9058 states and 13408 transitions. [2023-12-16 01:04:50,260 INFO L78 Accepts]: Start accepts. Automaton has 9058 states and 13408 transitions. Word has length 91 [2023-12-16 01:04:50,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:50,260 INFO L495 AbstractCegarLoop]: Abstraction has 9058 states and 13408 transitions. [2023-12-16 01:04:50,260 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) [2023-12-16 01:04:50,261 INFO L276 IsEmpty]: Start isEmpty. Operand 9058 states and 13408 transitions. [2023-12-16 01:04:50,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:50,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:50,261 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] [2023-12-16 01:04:50,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:04:50,262 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:50,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:50,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1832638862, now seen corresponding path program 1 times [2023-12-16 01:04:50,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:50,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984835861] [2023-12-16 01:04:50,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:50,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:50,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:50,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984835861] [2023-12-16 01:04:50,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984835861] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:50,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:50,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:50,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709977217] [2023-12-16 01:04:50,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:50,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:50,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:50,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:50,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:50,336 INFO L87 Difference]: Start difference. First operand 9058 states and 13408 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) [2023-12-16 01:04:50,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:50,499 INFO L93 Difference]: Finished difference Result 20518 states and 30626 transitions. [2023-12-16 01:04:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:50,500 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 [2023-12-16 01:04:50,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:50,523 INFO L225 Difference]: With dead ends: 20518 [2023-12-16 01:04:50,523 INFO L226 Difference]: Without dead ends: 14532 [2023-12-16 01:04:50,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:50,534 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 [2023-12-16 01:04:50,534 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] [2023-12-16 01:04:50,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14532 states. [2023-12-16 01:04:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14532 to 14530. [2023-12-16 01:04:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14530 states, 14528 states have (on average 1.475770925110132) internal successors, (21440), 14529 states have internal predecessors, (21440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:50,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14530 states to 14530 states and 21440 transitions. [2023-12-16 01:04:50,816 INFO L78 Accepts]: Start accepts. Automaton has 14530 states and 21440 transitions. Word has length 91 [2023-12-16 01:04:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:50,816 INFO L495 AbstractCegarLoop]: Abstraction has 14530 states and 21440 transitions. [2023-12-16 01:04:50,816 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) [2023-12-16 01:04:50,816 INFO L276 IsEmpty]: Start isEmpty. Operand 14530 states and 21440 transitions. [2023-12-16 01:04:50,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 01:04:50,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:50,817 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] [2023-12-16 01:04:50,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:04:50,817 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:50,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:50,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1608033138, now seen corresponding path program 1 times [2023-12-16 01:04:50,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:50,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303000249] [2023-12-16 01:04:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:50,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:50,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:50,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303000249] [2023-12-16 01:04:50,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303000249] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:50,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:50,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:50,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750839616] [2023-12-16 01:04:50,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:50,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:50,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:50,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:50,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:50,868 INFO L87 Difference]: Start difference. First operand 14530 states and 21440 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) [2023-12-16 01:04:51,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:51,240 INFO L93 Difference]: Finished difference Result 36422 states and 53826 transitions. [2023-12-16 01:04:51,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:51,240 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 [2023-12-16 01:04:51,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:51,286 INFO L225 Difference]: With dead ends: 36422 [2023-12-16 01:04:51,287 INFO L226 Difference]: Without dead ends: 24964 [2023-12-16 01:04:51,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:51,302 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 [2023-12-16 01:04:51,303 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] [2023-12-16 01:04:51,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24964 states. [2023-12-16 01:04:51,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24964 to 24962. [2023-12-16 01:04:51,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24962 states, 24960 states have (on average 1.4615384615384615) internal successors, (36480), 24961 states have internal predecessors, (36480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24962 states to 24962 states and 36480 transitions. [2023-12-16 01:04:52,018 INFO L78 Accepts]: Start accepts. Automaton has 24962 states and 36480 transitions. Word has length 91 [2023-12-16 01:04:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:52,019 INFO L495 AbstractCegarLoop]: Abstraction has 24962 states and 36480 transitions. [2023-12-16 01:04:52,019 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) [2023-12-16 01:04:52,019 INFO L276 IsEmpty]: Start isEmpty. Operand 24962 states and 36480 transitions. [2023-12-16 01:04:52,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 01:04:52,020 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:52,020 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] [2023-12-16 01:04:52,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:04:52,020 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:52,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:52,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1270174003, now seen corresponding path program 1 times [2023-12-16 01:04:52,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:52,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42625576] [2023-12-16 01:04:52,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:52,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:52,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:52,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42625576] [2023-12-16 01:04:52,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42625576] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:52,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:52,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:04:52,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542210606] [2023-12-16 01:04:52,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:52,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:52,089 INFO L87 Difference]: Start difference. First operand 24962 states and 36480 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) [2023-12-16 01:04:52,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:52,663 INFO L93 Difference]: Finished difference Result 47497 states and 70022 transitions. [2023-12-16 01:04:52,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:52,664 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 [2023-12-16 01:04:52,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:52,730 INFO L225 Difference]: With dead ends: 47497 [2023-12-16 01:04:52,730 INFO L226 Difference]: Without dead ends: 35462 [2023-12-16 01:04:52,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:52,742 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 [2023-12-16 01:04:52,742 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] [2023-12-16 01:04:52,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35462 states. [2023-12-16 01:04:53,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35462 to 35460. [2023-12-16 01:04:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35460 states, 35458 states have (on average 1.4584578938462407) internal successors, (51714), 35459 states have internal predecessors, (51714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:53,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35460 states to 35460 states and 51714 transitions. [2023-12-16 01:04:53,551 INFO L78 Accepts]: Start accepts. Automaton has 35460 states and 51714 transitions. Word has length 93 [2023-12-16 01:04:53,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:53,551 INFO L495 AbstractCegarLoop]: Abstraction has 35460 states and 51714 transitions. [2023-12-16 01:04:53,551 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) [2023-12-16 01:04:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 35460 states and 51714 transitions. [2023-12-16 01:04:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-16 01:04:53,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:53,552 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 01:04:53,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:04:53,553 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:53,553 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:53,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2076472174, now seen corresponding path program 1 times [2023-12-16 01:04:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:53,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987444507] [2023-12-16 01:04:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:53,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:53,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:53,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987444507] [2023-12-16 01:04:53,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987444507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:53,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:53,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:04:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839994583] [2023-12-16 01:04:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:53,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:53,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:53,623 INFO L87 Difference]: Start difference. First operand 35460 states and 51714 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:56,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:04:56,638 INFO L93 Difference]: Finished difference Result 41470 states and 60281 transitions. [2023-12-16 01:04:56,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:04:56,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 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 [2023-12-16 01:04:56,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:04:56,688 INFO L225 Difference]: With dead ends: 41470 [2023-12-16 01:04:56,688 INFO L226 Difference]: Without dead ends: 38464 [2023-12-16 01:04:56,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:56,696 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 938 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 935 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 935 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:04:56,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 609 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [935 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 01:04:56,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38464 states. [2023-12-16 01:04:57,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38464 to 38464. [2023-12-16 01:04:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38464 states, 38462 states have (on average 1.4354687743747074) internal successors, (55211), 38463 states have internal predecessors, (55211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:57,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38464 states to 38464 states and 55211 transitions. [2023-12-16 01:04:57,616 INFO L78 Accepts]: Start accepts. Automaton has 38464 states and 55211 transitions. Word has length 94 [2023-12-16 01:04:57,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:04:57,616 INFO L495 AbstractCegarLoop]: Abstraction has 38464 states and 55211 transitions. [2023-12-16 01:04:57,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:04:57,617 INFO L276 IsEmpty]: Start isEmpty. Operand 38464 states and 55211 transitions. [2023-12-16 01:04:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 01:04:57,618 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:04:57,618 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 01:04:57,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:04:57,618 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:04:57,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:04:57,618 INFO L85 PathProgramCache]: Analyzing trace with hash -136290371, now seen corresponding path program 1 times [2023-12-16 01:04:57,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:04:57,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181795919] [2023-12-16 01:04:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:04:57,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:04:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:04:57,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:04:57,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:04:57,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181795919] [2023-12-16 01:04:57,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181795919] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:04:57,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:04:57,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:04:57,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319883099] [2023-12-16 01:04:57,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:04:57,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:04:57,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:04:57,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:04:57,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:04:57,800 INFO L87 Difference]: Start difference. First operand 38464 states and 55211 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) [2023-12-16 01:05:00,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:05:00,391 INFO L93 Difference]: Finished difference Result 50484 states and 70773 transitions. [2023-12-16 01:05:00,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:05:00,392 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 [2023-12-16 01:05:00,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:05:00,443 INFO L225 Difference]: With dead ends: 50484 [2023-12-16 01:05:00,443 INFO L226 Difference]: Without dead ends: 44474 [2023-12-16 01:05:00,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:05:00,458 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 1074 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 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, 2.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:05:00,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 513 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-16 01:05:00,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44474 states. [2023-12-16 01:05:01,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44474 to 43721. [2023-12-16 01:05:01,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43721 states, 43719 states have (on average 1.4012671836043826) internal successors, (61262), 43720 states have internal predecessors, (61262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:05:01,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43721 states to 43721 states and 61262 transitions. [2023-12-16 01:05:01,396 INFO L78 Accepts]: Start accepts. Automaton has 43721 states and 61262 transitions. Word has length 100 [2023-12-16 01:05:01,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:05:01,396 INFO L495 AbstractCegarLoop]: Abstraction has 43721 states and 61262 transitions. [2023-12-16 01:05:01,397 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) [2023-12-16 01:05:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 43721 states and 61262 transitions. [2023-12-16 01:05:01,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 01:05:01,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:05:01,402 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] [2023-12-16 01:05:01,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:05:01,402 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:05:01,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:05:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1909067792, now seen corresponding path program 1 times [2023-12-16 01:05:01,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:05:01,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508751286] [2023-12-16 01:05:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:05:01,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:05:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:05:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:05:01,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:05:01,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508751286] [2023-12-16 01:05:01,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508751286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:05:01,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:05:01,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:05:01,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892566001] [2023-12-16 01:05:01,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:05:01,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:05:01,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:05:01,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:05:01,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:05:01,603 INFO L87 Difference]: Start difference. First operand 43721 states and 61262 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) [2023-12-16 01:05:06,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:05:06,051 INFO L93 Difference]: Finished difference Result 309211 states and 449239 transitions. [2023-12-16 01:05:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:05:06,052 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 [2023-12-16 01:05:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:05:06,635 INFO L225 Difference]: With dead ends: 309211 [2023-12-16 01:05:06,635 INFO L226 Difference]: Without dead ends: 276825 [2023-12-16 01:05:06,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:05:06,744 INFO L413 NwaCegarLoop]: 1698 mSDtfsCounter, 11808 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11808 SdHoareTripleChecker+Valid, 4962 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:05:06,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11808 Valid, 4962 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:05:07,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276825 states. [2023-12-16 01:05:10,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276825 to 76105. [2023-12-16 01:05:10,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76105 states, 76103 states have (on average 1.422256678448944) internal successors, (108238), 76104 states have internal predecessors, (108238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:05:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76105 states to 76105 states and 108238 transitions. [2023-12-16 01:05:10,279 INFO L78 Accepts]: Start accepts. Automaton has 76105 states and 108238 transitions. Word has length 115 [2023-12-16 01:05:10,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:05:10,279 INFO L495 AbstractCegarLoop]: Abstraction has 76105 states and 108238 transitions. [2023-12-16 01:05:10,280 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) [2023-12-16 01:05:10,280 INFO L276 IsEmpty]: Start isEmpty. Operand 76105 states and 108238 transitions. [2023-12-16 01:05:10,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 01:05:10,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:05:10,288 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] [2023-12-16 01:05:10,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:05:10,288 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:05:10,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:05:10,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1630515440, now seen corresponding path program 1 times [2023-12-16 01:05:10,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:05:10,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606207965] [2023-12-16 01:05:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:05:10,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:05:10,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:05:10,516 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 01:05:10,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:05:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606207965] [2023-12-16 01:05:10,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606207965] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:05:10,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:05:10,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:05:10,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358960485] [2023-12-16 01:05:10,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:05:10,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:05:10,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:05:10,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:05:10,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:05:10,518 INFO L87 Difference]: Start difference. First operand 76105 states and 108238 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) [2023-12-16 01:05:16,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:05:16,608 INFO L93 Difference]: Finished difference Result 341595 states and 496215 transitions. [2023-12-16 01:05:16,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:05:16,612 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 [2023-12-16 01:05:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:05:17,391 INFO L225 Difference]: With dead ends: 341595 [2023-12-16 01:05:17,392 INFO L226 Difference]: Without dead ends: 309209 [2023-12-16 01:05:17,482 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 [2023-12-16 01:05:17,482 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 [2023-12-16 01:05:17,483 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] [2023-12-16 01:05:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309209 states. [2023-12-16 01:05:22,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309209 to 124745. [2023-12-16 01:05:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124745 states, 124743 states have (on average 1.4299960719238756) internal successors, (178382), 124744 states have internal predecessors, (178382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:05:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124745 states to 124745 states and 178382 transitions. [2023-12-16 01:05:22,591 INFO L78 Accepts]: Start accepts. Automaton has 124745 states and 178382 transitions. Word has length 115 [2023-12-16 01:05:22,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:05:22,598 INFO L495 AbstractCegarLoop]: Abstraction has 124745 states and 178382 transitions. [2023-12-16 01:05:22,598 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) [2023-12-16 01:05:22,598 INFO L276 IsEmpty]: Start isEmpty. Operand 124745 states and 178382 transitions. [2023-12-16 01:05:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 01:05:22,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:05:22,628 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] [2023-12-16 01:05:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:05:22,629 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:05:22,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:05:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1985482000, now seen corresponding path program 1 times [2023-12-16 01:05:22,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:05:22,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326049789] [2023-12-16 01:05:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:05:22,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:05:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:05:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 01:05:22,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:05:22,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326049789] [2023-12-16 01:05:22,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326049789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:05:22,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:05:22,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 01:05:22,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402848038] [2023-12-16 01:05:22,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:05:22,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:05:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:05:22,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:05:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:05:22,816 INFO L87 Difference]: Start difference. First operand 124745 states and 178382 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) [2023-12-16 01:05:30,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:05:30,358 INFO L93 Difference]: Finished difference Result 373979 states and 543191 transitions. [2023-12-16 01:05:30,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:05:30,359 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 [2023-12-16 01:05:30,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:05:31,275 INFO L225 Difference]: With dead ends: 373979 [2023-12-16 01:05:31,275 INFO L226 Difference]: Without dead ends: 341593 [2023-12-16 01:05:31,417 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 [2023-12-16 01:05:31,418 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 [2023-12-16 01:05:31,418 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] [2023-12-16 01:05:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341593 states. Received shutdown request... [2023-12-16 01:05:33,844 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:05:34,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 01:05:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341593 to 157129. [2023-12-16 01:05:37,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157129 states, 157127 states have (on average 1.4342410916010615) internal successors, (225358), 157128 states have internal predecessors, (225358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:05:37,391 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:05:37,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:05:37,396 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 01:05:37,424 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:05:37,427 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:05:37,429 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:05:37,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:05:37 BoogieIcfgContainer [2023-12-16 01:05:37,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:05:37,433 INFO L158 Benchmark]: Toolchain (without parser) took 62856.47ms. Allocated memory was 198.2MB in the beginning and 7.5GB in the end (delta: 7.3GB). Free memory was 134.8MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-16 01:05:37,434 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 164.6MB. Free memory was 117.8MB in the beginning and 117.6MB in the end (delta: 143.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:05:37,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1459.98ms. Allocated memory is still 198.2MB. Free memory was 134.4MB in the beginning and 90.9MB in the end (delta: 43.5MB). Peak memory consumption was 64.2MB. Max. memory is 8.0GB. [2023-12-16 01:05:37,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 342.72ms. Allocated memory was 198.2MB in the beginning and 274.7MB in the end (delta: 76.5MB). Free memory was 90.9MB in the beginning and 158.6MB in the end (delta: -67.7MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-12-16 01:05:37,438 INFO L158 Benchmark]: Boogie Preprocessor took 474.65ms. Allocated memory is still 274.7MB. Free memory was 158.6MB in the beginning and 133.0MB in the end (delta: 25.7MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. [2023-12-16 01:05:37,438 INFO L158 Benchmark]: RCFGBuilder took 3431.57ms. Allocated memory was 274.7MB in the beginning and 632.3MB in the end (delta: 357.6MB). Free memory was 133.0MB in the beginning and 402.7MB in the end (delta: -269.8MB). Peak memory consumption was 177.2MB. Max. memory is 8.0GB. [2023-12-16 01:05:37,439 INFO L158 Benchmark]: TraceAbstraction took 57141.10ms. Allocated memory was 632.3MB in the beginning and 7.5GB in the end (delta: 6.9GB). Free memory was 402.2MB in the beginning and 5.5GB in the end (delta: -5.1GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. [2023-12-16 01:05:37,443 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 164.6MB. Free memory was 117.8MB in the beginning and 117.6MB in the end (delta: 143.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1459.98ms. Allocated memory is still 198.2MB. Free memory was 134.4MB in the beginning and 90.9MB in the end (delta: 43.5MB). Peak memory consumption was 64.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 342.72ms. Allocated memory was 198.2MB in the beginning and 274.7MB in the end (delta: 76.5MB). Free memory was 90.9MB in the beginning and 158.6MB in the end (delta: -67.7MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 474.65ms. Allocated memory is still 274.7MB. Free memory was 158.6MB in the beginning and 133.0MB in the end (delta: 25.7MB). Peak memory consumption was 80.2MB. Max. memory is 8.0GB. * RCFGBuilder took 3431.57ms. Allocated memory was 274.7MB in the beginning and 632.3MB in the end (delta: 357.6MB). Free memory was 133.0MB in the beginning and 402.7MB in the end (delta: -269.8MB). Peak memory consumption was 177.2MB. Max. memory is 8.0GB. * TraceAbstraction took 57141.10ms. Allocated memory was 632.3MB in the beginning and 7.5GB in the end (delta: 6.9GB). Free memory was 402.2MB in the beginning and 5.5GB in the end (delta: -5.1GB). Peak memory consumption was 2.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 683]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 683). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 758]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 758). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 884 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 57.1s, OverallIterations: 21, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78861 SdHoareTripleChecker+Valid, 10.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78861 mSDsluCounter, 51961 SdHoareTripleChecker+Invalid, 9.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21469 mSDsCounter, 2858 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10240 IncrementalHoareTripleChecker+Invalid, 13098 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2858 mSolverCounterUnsat, 30492 mSDtfsCounter, 10240 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124745occurred in iteration=20, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 386817 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1779 NumberOfCodeBlocks, 1779 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1758 ConstructedInterpolants, 0 QuantifiedInterpolants, 10587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 108/108 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown