/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:49:28,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:49:28,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:49:28,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:49:28,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:49:28,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:49:28,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:49:28,244 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:49:28,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:49:28,245 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:49:28,245 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:49:28,245 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:49:28,245 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:49:28,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:49:28,246 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:49:28,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:49:28,246 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:49:28,247 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:49:28,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:49:28,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:49:28,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:49:28,247 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:49:28,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:49:28,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:49:28,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:49:28,248 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:49:28,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:49:28,249 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:49:28,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:49:28,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:49:28,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:49:28,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:49:28,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:49:28,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:49:28,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:49:28,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:49:28,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:49:28,251 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:49:28,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:49:28,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:49:28,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:49:28,445 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:49:28,446 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:49:28,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-20 02:49:29,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:49:29,636 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:49:29,637 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-20 02:49:29,654 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55adc16d/96549253c64f46fd81a2333623ef58a1/FLAG3bec88f37 [2023-12-20 02:49:29,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f55adc16d/96549253c64f46fd81a2333623ef58a1 [2023-12-20 02:49:29,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:49:29,681 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:49:29,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:49:29,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:49:29,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:49:29,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:49:29" (1/1) ... [2023-12-20 02:49:29,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ba4585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:29, skipping insertion in model container [2023-12-20 02:49:29,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:49:29" (1/1) ... [2023-12-20 02:49:29,771 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:49:29,908 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5377,5390] [2023-12-20 02:49:29,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:49:29,954 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:49:29,979 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[5377,5390] [2023-12-20 02:49:30,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:49:30,036 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:49:30,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30 WrapperNode [2023-12-20 02:49:30,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:49:30,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:49:30,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:49:30,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:49:30,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,059 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,089 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 458 [2023-12-20 02:49:30,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:49:30,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:49:30,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:49:30,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:49:30,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,112 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-20 02:49:30,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,145 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:49:30,146 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:49:30,146 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:49:30,146 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:49:30,147 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (1/1) ... [2023-12-20 02:49:30,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:49:30,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:30,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-20 02:49:30,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-20 02:49:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:49:30,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:49:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:49:30,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:49:30,366 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:49:30,367 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:49:30,729 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:49:30,759 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:49:30,760 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:49:30,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:49:30 BoogieIcfgContainer [2023-12-20 02:49:30,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:49:30,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:49:30,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:49:30,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:49:30,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:49:29" (1/3) ... [2023-12-20 02:49:30,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3590e784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:49:30, skipping insertion in model container [2023-12-20 02:49:30,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:49:30" (2/3) ... [2023-12-20 02:49:30,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3590e784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:49:30, skipping insertion in model container [2023-12-20 02:49:30,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:49:30" (3/3) ... [2023-12-20 02:49:30,765 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2023-12-20 02:49:30,775 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:49:30,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 02:49:30,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:49:30,808 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;@753d3e0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:49:30,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 02:49:30,811 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 1.6944444444444444) internal successors, (183), 109 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:30,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-20 02:49:30,816 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:30,817 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] [2023-12-20 02:49:30,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:30,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:30,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1500294558, now seen corresponding path program 1 times [2023-12-20 02:49:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:30,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164557574] [2023-12-20 02:49:30,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:30,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:31,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:31,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164557574] [2023-12-20 02:49:31,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164557574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:31,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:31,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:31,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072407662] [2023-12-20 02:49:31,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:31,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:31,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:31,062 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 1.6944444444444444) internal successors, (183), 109 states have internal predecessors, (183), 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 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:31,096 INFO L93 Difference]: Finished difference Result 262 states and 421 transitions. [2023-12-20 02:49:31,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:31,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2023-12-20 02:49:31,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:31,104 INFO L225 Difference]: With dead ends: 262 [2023-12-20 02:49:31,104 INFO L226 Difference]: Without dead ends: 174 [2023-12-20 02:49:31,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:31,108 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 129 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:31,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 376 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-12-20 02:49:31,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2023-12-20 02:49:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.5087719298245614) internal successors, (258), 171 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 258 transitions. [2023-12-20 02:49:31,152 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 258 transitions. Word has length 48 [2023-12-20 02:49:31,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:31,152 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 258 transitions. [2023-12-20 02:49:31,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 258 transitions. [2023-12-20 02:49:31,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 02:49:31,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:31,154 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] [2023-12-20 02:49:31,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:49:31,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:31,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1904231256, now seen corresponding path program 1 times [2023-12-20 02:49:31,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:31,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968161654] [2023-12-20 02:49:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:31,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:31,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:31,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968161654] [2023-12-20 02:49:31,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968161654] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:31,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:31,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:31,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140247693] [2023-12-20 02:49:31,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:31,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:31,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:31,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:31,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:31,253 INFO L87 Difference]: Start difference. First operand 172 states and 258 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:31,288 INFO L93 Difference]: Finished difference Result 432 states and 670 transitions. [2023-12-20 02:49:31,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:31,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2023-12-20 02:49:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:31,290 INFO L225 Difference]: With dead ends: 432 [2023-12-20 02:49:31,290 INFO L226 Difference]: Without dead ends: 286 [2023-12-20 02:49:31,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:31,291 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 108 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:31,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 327 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:31,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2023-12-20 02:49:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 284. [2023-12-20 02:49:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.5371024734982333) internal successors, (435), 283 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 435 transitions. [2023-12-20 02:49:31,302 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 435 transitions. Word has length 49 [2023-12-20 02:49:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:31,303 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 435 transitions. [2023-12-20 02:49:31,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 435 transitions. [2023-12-20 02:49:31,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 02:49:31,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:31,304 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] [2023-12-20 02:49:31,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:49:31,304 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:31,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:31,305 INFO L85 PathProgramCache]: Analyzing trace with hash -583215553, now seen corresponding path program 1 times [2023-12-20 02:49:31,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:31,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119399944] [2023-12-20 02:49:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:31,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:31,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119399944] [2023-12-20 02:49:31,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119399944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:31,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:31,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:31,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285951055] [2023-12-20 02:49:31,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:31,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:31,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:31,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:31,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:31,401 INFO L87 Difference]: Start difference. First operand 284 states and 435 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:31,417 INFO L93 Difference]: Finished difference Result 736 states and 1149 transitions. [2023-12-20 02:49:31,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:31,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2023-12-20 02:49:31,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:31,419 INFO L225 Difference]: With dead ends: 736 [2023-12-20 02:49:31,419 INFO L226 Difference]: Without dead ends: 478 [2023-12-20 02:49:31,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:31,421 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 103 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:31,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 312 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:31,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2023-12-20 02:49:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 476. [2023-12-20 02:49:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.5473684210526315) internal successors, (735), 475 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 735 transitions. [2023-12-20 02:49:31,433 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 735 transitions. Word has length 50 [2023-12-20 02:49:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:31,434 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 735 transitions. [2023-12-20 02:49:31,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 735 transitions. [2023-12-20 02:49:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:49:31,435 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:31,435 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] [2023-12-20 02:49:31,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:49:31,435 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:31,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1140177137, now seen corresponding path program 1 times [2023-12-20 02:49:31,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:31,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154854610] [2023-12-20 02:49:31,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:31,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:31,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:31,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154854610] [2023-12-20 02:49:31,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154854610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:31,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:31,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:49:31,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286525558] [2023-12-20 02:49:31,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:31,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:49:31,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:31,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:49:31,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:31,569 INFO L87 Difference]: Start difference. First operand 476 states and 735 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:31,648 INFO L93 Difference]: Finished difference Result 2726 states and 4280 transitions. [2023-12-20 02:49:31,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:49:31,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 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 51 [2023-12-20 02:49:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:31,654 INFO L225 Difference]: With dead ends: 2726 [2023-12-20 02:49:31,654 INFO L226 Difference]: Without dead ends: 2276 [2023-12-20 02:49:31,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:49:31,656 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1016 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:31,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1216 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:31,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2023-12-20 02:49:31,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 924. [2023-12-20 02:49:31,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 923 states have (on average 1.5460455037919827) internal successors, (1427), 923 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 1427 transitions. [2023-12-20 02:49:31,676 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 1427 transitions. Word has length 51 [2023-12-20 02:49:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:31,676 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 1427 transitions. [2023-12-20 02:49:31,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 1427 transitions. [2023-12-20 02:49:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:49:31,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:31,677 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] [2023-12-20 02:49:31,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:49:31,678 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:31,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1005209156, now seen corresponding path program 1 times [2023-12-20 02:49:31,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:31,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936689040] [2023-12-20 02:49:31,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:31,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:31,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:31,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936689040] [2023-12-20 02:49:31,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936689040] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:31,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:31,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:49:31,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283391780] [2023-12-20 02:49:31,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:31,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:49:31,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:31,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:49:31,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:31,853 INFO L87 Difference]: Start difference. First operand 924 states and 1427 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:31,927 INFO L93 Difference]: Finished difference Result 4028 states and 6231 transitions. [2023-12-20 02:49:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:49:31,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2023-12-20 02:49:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:31,936 INFO L225 Difference]: With dead ends: 4028 [2023-12-20 02:49:31,936 INFO L226 Difference]: Without dead ends: 3130 [2023-12-20 02:49:31,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:31,942 INFO L413 NwaCegarLoop]: 359 mSDtfsCounter, 406 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:31,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 815 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:49:31,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3130 states. [2023-12-20 02:49:31,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3130 to 3124. [2023-12-20 02:49:31,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3124 states, 3123 states have (on average 1.5405059237912264) internal successors, (4811), 3123 states have internal predecessors, (4811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3124 states to 3124 states and 4811 transitions. [2023-12-20 02:49:31,983 INFO L78 Accepts]: Start accepts. Automaton has 3124 states and 4811 transitions. Word has length 52 [2023-12-20 02:49:31,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:31,983 INFO L495 AbstractCegarLoop]: Abstraction has 3124 states and 4811 transitions. [2023-12-20 02:49:31,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:31,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3124 states and 4811 transitions. [2023-12-20 02:49:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:49:31,987 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:31,987 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] [2023-12-20 02:49:31,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:49:31,987 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:31,988 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:31,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1230800526, now seen corresponding path program 1 times [2023-12-20 02:49:31,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:31,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903323030] [2023-12-20 02:49:31,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:31,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:32,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:32,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:32,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903323030] [2023-12-20 02:49:32,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903323030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:32,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:32,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:32,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979196245] [2023-12-20 02:49:32,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:32,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:32,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:32,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:32,051 INFO L87 Difference]: Start difference. First operand 3124 states and 4811 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:32,100 INFO L93 Difference]: Finished difference Result 8248 states and 12653 transitions. [2023-12-20 02:49:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:32,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-20 02:49:32,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:32,113 INFO L225 Difference]: With dead ends: 8248 [2023-12-20 02:49:32,113 INFO L226 Difference]: Without dead ends: 5150 [2023-12-20 02:49:32,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:32,117 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 115 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:32,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 367 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:32,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5150 states. [2023-12-20 02:49:32,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5150 to 5148. [2023-12-20 02:49:32,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5148 states, 5147 states have (on average 1.5160287546143385) internal successors, (7803), 5147 states have internal predecessors, (7803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5148 states to 5148 states and 7803 transitions. [2023-12-20 02:49:32,201 INFO L78 Accepts]: Start accepts. Automaton has 5148 states and 7803 transitions. Word has length 53 [2023-12-20 02:49:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:32,202 INFO L495 AbstractCegarLoop]: Abstraction has 5148 states and 7803 transitions. [2023-12-20 02:49:32,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,202 INFO L276 IsEmpty]: Start isEmpty. Operand 5148 states and 7803 transitions. [2023-12-20 02:49:32,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:49:32,203 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:32,203 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] [2023-12-20 02:49:32,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:49:32,203 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:32,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:32,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1165128050, now seen corresponding path program 1 times [2023-12-20 02:49:32,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:32,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552144339] [2023-12-20 02:49:32,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:32,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:32,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:32,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552144339] [2023-12-20 02:49:32,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552144339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:32,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:32,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:49:32,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16112602] [2023-12-20 02:49:32,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:32,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:49:32,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:32,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:49:32,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:49:32,365 INFO L87 Difference]: Start difference. First operand 5148 states and 7803 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:32,420 INFO L93 Difference]: Finished difference Result 10526 states and 15836 transitions. [2023-12-20 02:49:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:49:32,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 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 54 [2023-12-20 02:49:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:32,446 INFO L225 Difference]: With dead ends: 10526 [2023-12-20 02:49:32,446 INFO L226 Difference]: Without dead ends: 10524 [2023-12-20 02:49:32,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:32,451 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 248 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:32,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 766 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:32,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10524 states. [2023-12-20 02:49:32,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10524 to 5404. [2023-12-20 02:49:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5404 states, 5403 states have (on average 1.4915787525448825) internal successors, (8059), 5403 states have internal predecessors, (8059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5404 states to 5404 states and 8059 transitions. [2023-12-20 02:49:32,568 INFO L78 Accepts]: Start accepts. Automaton has 5404 states and 8059 transitions. Word has length 54 [2023-12-20 02:49:32,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:32,569 INFO L495 AbstractCegarLoop]: Abstraction has 5404 states and 8059 transitions. [2023-12-20 02:49:32,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5404 states and 8059 transitions. [2023-12-20 02:49:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:49:32,570 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:32,570 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] [2023-12-20 02:49:32,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:49:32,571 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:32,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:32,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1748658131, now seen corresponding path program 1 times [2023-12-20 02:49:32,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:32,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611681736] [2023-12-20 02:49:32,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:32,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:32,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:32,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611681736] [2023-12-20 02:49:32,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611681736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:32,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:32,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:32,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719594184] [2023-12-20 02:49:32,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:32,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:32,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:32,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:32,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:32,649 INFO L87 Difference]: Start difference. First operand 5404 states and 8059 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:32,696 INFO L93 Difference]: Finished difference Result 13258 states and 19787 transitions. [2023-12-20 02:49:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 55 [2023-12-20 02:49:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:32,721 INFO L225 Difference]: With dead ends: 13258 [2023-12-20 02:49:32,722 INFO L226 Difference]: Without dead ends: 7880 [2023-12-20 02:49:32,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:32,729 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 92 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:32,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 279 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:32,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7880 states. [2023-12-20 02:49:32,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7880 to 7822. [2023-12-20 02:49:32,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7822 states, 7821 states have (on average 1.4812683800025572) internal successors, (11585), 7821 states have internal predecessors, (11585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 11585 transitions. [2023-12-20 02:49:32,842 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 11585 transitions. Word has length 55 [2023-12-20 02:49:32,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:32,842 INFO L495 AbstractCegarLoop]: Abstraction has 7822 states and 11585 transitions. [2023-12-20 02:49:32,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:32,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 11585 transitions. [2023-12-20 02:49:32,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:32,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:32,845 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:32,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:49:32,846 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:32,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash -88776474, now seen corresponding path program 1 times [2023-12-20 02:49:32,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:32,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63949658] [2023-12-20 02:49:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:32,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:33,130 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:33,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:33,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63949658] [2023-12-20 02:49:33,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63949658] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:49:33,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142114521] [2023-12-20 02:49:33,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:33,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:33,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:49:33,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:49:33,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 02:49:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:33,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:49:33,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:49:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 02:49:33,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:49:33,533 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 02:49:33,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142114521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:49:33,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:49:33,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 13 [2023-12-20 02:49:33,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526942686] [2023-12-20 02:49:33,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:49:33,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:49:33,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:33,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:49:33,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:49:33,539 INFO L87 Difference]: Start difference. First operand 7822 states and 11585 transitions. Second operand has 13 states, 13 states have (on average 17.153846153846153) internal successors, (223), 13 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:39,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:39,114 INFO L93 Difference]: Finished difference Result 164214 states and 240339 transitions. [2023-12-20 02:49:39,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2023-12-20 02:49:39,118 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 17.153846153846153) internal successors, (223), 13 states have internal predecessors, (223), 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 78 [2023-12-20 02:49:39,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:39,415 INFO L225 Difference]: With dead ends: 164214 [2023-12-20 02:49:39,415 INFO L226 Difference]: Without dead ends: 156420 [2023-12-20 02:49:39,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7292 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2720, Invalid=14050, Unknown=0, NotChecked=0, Total=16770 [2023-12-20 02:49:39,470 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 9485 mSDsluCounter, 3369 mSDsCounter, 0 mSdLazyCounter, 3605 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9485 SdHoareTripleChecker+Valid, 4015 SdHoareTripleChecker+Invalid, 3681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:39,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9485 Valid, 4015 Invalid, 3681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3605 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 02:49:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156420 states. [2023-12-20 02:49:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156420 to 53370. [2023-12-20 02:49:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53370 states, 53369 states have (on average 1.4388315314133673) internal successors, (76789), 53369 states have internal predecessors, (76789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53370 states to 53370 states and 76789 transitions. [2023-12-20 02:49:40,930 INFO L78 Accepts]: Start accepts. Automaton has 53370 states and 76789 transitions. Word has length 78 [2023-12-20 02:49:40,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:40,931 INFO L495 AbstractCegarLoop]: Abstraction has 53370 states and 76789 transitions. [2023-12-20 02:49:40,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.153846153846153) internal successors, (223), 13 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:40,931 INFO L276 IsEmpty]: Start isEmpty. Operand 53370 states and 76789 transitions. [2023-12-20 02:49:40,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:40,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:40,938 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:49:40,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 02:49:41,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:49:41,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:41,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:41,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1976906248, now seen corresponding path program 1 times [2023-12-20 02:49:41,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:41,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739430527] [2023-12-20 02:49:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:41,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:41,187 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:41,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:41,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739430527] [2023-12-20 02:49:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739430527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:41,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:41,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:41,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817226272] [2023-12-20 02:49:41,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:41,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:41,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:41,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:41,189 INFO L87 Difference]: Start difference. First operand 53370 states and 76789 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:41,539 INFO L93 Difference]: Finished difference Result 124567 states and 179681 transitions. [2023-12-20 02:49:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:41,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2023-12-20 02:49:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:41,638 INFO L225 Difference]: With dead ends: 124567 [2023-12-20 02:49:41,638 INFO L226 Difference]: Without dead ends: 82173 [2023-12-20 02:49:41,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:41,686 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 93 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:41,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 381 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82173 states. [2023-12-20 02:49:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82173 to 82171. [2023-12-20 02:49:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82171 states, 82170 states have (on average 1.4268832907387123) internal successors, (117247), 82170 states have internal predecessors, (117247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82171 states to 82171 states and 117247 transitions. [2023-12-20 02:49:43,119 INFO L78 Accepts]: Start accepts. Automaton has 82171 states and 117247 transitions. Word has length 78 [2023-12-20 02:49:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:43,119 INFO L495 AbstractCegarLoop]: Abstraction has 82171 states and 117247 transitions. [2023-12-20 02:49:43,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,120 INFO L276 IsEmpty]: Start isEmpty. Operand 82171 states and 117247 transitions. [2023-12-20 02:49:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:43,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:43,128 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:43,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:49:43,128 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:43,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1631532212, now seen corresponding path program 1 times [2023-12-20 02:49:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:43,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990447265] [2023-12-20 02:49:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:43,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:43,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990447265] [2023-12-20 02:49:43,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990447265] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:43,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:43,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:43,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635364532] [2023-12-20 02:49:43,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:43,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:43,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:43,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:43,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:43,159 INFO L87 Difference]: Start difference. First operand 82171 states and 117247 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:43,696 INFO L93 Difference]: Finished difference Result 166923 states and 238194 transitions. [2023-12-20 02:49:43,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2023-12-20 02:49:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:43,882 INFO L225 Difference]: With dead ends: 166923 [2023-12-20 02:49:43,883 INFO L226 Difference]: Without dead ends: 117641 [2023-12-20 02:49:43,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:43,934 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 93 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:43,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 334 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:44,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117641 states. [2023-12-20 02:49:45,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117641 to 108531. [2023-12-20 02:49:45,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108531 states, 108530 states have (on average 1.4119966829448078) internal successors, (153244), 108530 states have internal predecessors, (153244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108531 states to 108531 states and 153244 transitions. [2023-12-20 02:49:45,422 INFO L78 Accepts]: Start accepts. Automaton has 108531 states and 153244 transitions. Word has length 78 [2023-12-20 02:49:45,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:45,422 INFO L495 AbstractCegarLoop]: Abstraction has 108531 states and 153244 transitions. [2023-12-20 02:49:45,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 108531 states and 153244 transitions. [2023-12-20 02:49:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:45,434 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:45,434 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:45,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:49:45,434 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:45,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:45,434 INFO L85 PathProgramCache]: Analyzing trace with hash 786752307, now seen corresponding path program 1 times [2023-12-20 02:49:45,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:45,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553036266] [2023-12-20 02:49:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:45,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:45,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:45,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553036266] [2023-12-20 02:49:45,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553036266] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:45,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:45,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:45,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82145306] [2023-12-20 02:49:45,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:45,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:45,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:45,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:45,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:45,468 INFO L87 Difference]: Start difference. First operand 108531 states and 153244 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:46,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:46,092 INFO L93 Difference]: Finished difference Result 174037 states and 244531 transitions. [2023-12-20 02:49:46,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:49:46,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2023-12-20 02:49:46,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:46,240 INFO L225 Difference]: With dead ends: 174037 [2023-12-20 02:49:46,240 INFO L226 Difference]: Without dead ends: 114172 [2023-12-20 02:49:46,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:46,280 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 94 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:46,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 353 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:46,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114172 states. [2023-12-20 02:49:47,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114172 to 107557. [2023-12-20 02:49:47,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107557 states, 107556 states have (on average 1.3867473688125256) internal successors, (149153), 107556 states have internal predecessors, (149153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:47,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107557 states to 107557 states and 149153 transitions. [2023-12-20 02:49:47,679 INFO L78 Accepts]: Start accepts. Automaton has 107557 states and 149153 transitions. Word has length 78 [2023-12-20 02:49:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:47,680 INFO L495 AbstractCegarLoop]: Abstraction has 107557 states and 149153 transitions. [2023-12-20 02:49:47,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:47,680 INFO L276 IsEmpty]: Start isEmpty. Operand 107557 states and 149153 transitions. [2023-12-20 02:49:47,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:47,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:47,689 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:47,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:49:47,690 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:47,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:47,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1711925903, now seen corresponding path program 1 times [2023-12-20 02:49:47,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:47,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776605491] [2023-12-20 02:49:47,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:47,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:47,753 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:49:47,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:47,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776605491] [2023-12-20 02:49:47,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776605491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:47,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:47,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:49:47,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645201360] [2023-12-20 02:49:47,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:47,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:49:47,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:47,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:49:47,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:47,755 INFO L87 Difference]: Start difference. First operand 107557 states and 149153 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:48,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:48,748 INFO L93 Difference]: Finished difference Result 239297 states and 334898 transitions. [2023-12-20 02:49:48,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:49:48,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 78 [2023-12-20 02:49:48,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:48,963 INFO L225 Difference]: With dead ends: 239297 [2023-12-20 02:49:48,964 INFO L226 Difference]: Without dead ends: 189134 [2023-12-20 02:49:48,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:49:48,994 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 741 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:48,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1060 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189134 states. [2023-12-20 02:49:50,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189134 to 147046. [2023-12-20 02:49:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147046 states, 147045 states have (on average 1.3831956203883164) internal successors, (203392), 147045 states have internal predecessors, (203392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147046 states to 147046 states and 203392 transitions. [2023-12-20 02:49:51,020 INFO L78 Accepts]: Start accepts. Automaton has 147046 states and 203392 transitions. Word has length 78 [2023-12-20 02:49:51,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:51,021 INFO L495 AbstractCegarLoop]: Abstraction has 147046 states and 203392 transitions. [2023-12-20 02:49:51,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:51,021 INFO L276 IsEmpty]: Start isEmpty. Operand 147046 states and 203392 transitions. [2023-12-20 02:49:51,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:51,030 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:51,031 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:51,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:49:51,031 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:51,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:51,032 INFO L85 PathProgramCache]: Analyzing trace with hash -84065798, now seen corresponding path program 1 times [2023-12-20 02:49:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:51,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174080721] [2023-12-20 02:49:51,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:51,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:49:51,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:51,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174080721] [2023-12-20 02:49:51,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174080721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:51,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:51,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:49:51,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720873775] [2023-12-20 02:49:51,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:51,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:49:51,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:51,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:49:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:51,179 INFO L87 Difference]: Start difference. First operand 147046 states and 203392 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:52,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:52,111 INFO L93 Difference]: Finished difference Result 260631 states and 364263 transitions. [2023-12-20 02:49:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:49:52,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 78 [2023-12-20 02:49:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:52,564 INFO L225 Difference]: With dead ends: 260631 [2023-12-20 02:49:52,564 INFO L226 Difference]: Without dead ends: 223918 [2023-12-20 02:49:52,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:49:52,676 INFO L413 NwaCegarLoop]: 282 mSDtfsCounter, 795 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:52,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 918 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:49:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223918 states. [2023-12-20 02:49:54,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223918 to 182370. [2023-12-20 02:49:54,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182370 states, 182369 states have (on average 1.3842374526372354) internal successors, (252442), 182369 states have internal predecessors, (252442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:55,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182370 states to 182370 states and 252442 transitions. [2023-12-20 02:49:55,061 INFO L78 Accepts]: Start accepts. Automaton has 182370 states and 252442 transitions. Word has length 78 [2023-12-20 02:49:55,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:55,061 INFO L495 AbstractCegarLoop]: Abstraction has 182370 states and 252442 transitions. [2023-12-20 02:49:55,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 182370 states and 252442 transitions. [2023-12-20 02:49:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-20 02:49:55,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:55,071 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:55,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:49:55,071 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:55,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:55,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1391804723, now seen corresponding path program 1 times [2023-12-20 02:49:55,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:55,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956993230] [2023-12-20 02:49:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:55,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-20 02:49:55,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:55,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956993230] [2023-12-20 02:49:55,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956993230] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:55,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:55,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:49:55,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514806683] [2023-12-20 02:49:55,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:55,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:49:55,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:55,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:49:55,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:49:55,138 INFO L87 Difference]: Start difference. First operand 182370 states and 252442 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:49:56,037 INFO L93 Difference]: Finished difference Result 272012 states and 379423 transitions. [2023-12-20 02:49:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:49:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 78 [2023-12-20 02:49:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:49:56,419 INFO L225 Difference]: With dead ends: 272012 [2023-12-20 02:49:56,419 INFO L226 Difference]: Without dead ends: 247516 [2023-12-20 02:49:56,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:49:56,493 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 757 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:49:56,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 982 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:49:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247516 states. [2023-12-20 02:49:58,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247516 to 205968. [2023-12-20 02:49:58,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205968 states, 205967 states have (on average 1.3852413250666369) internal successors, (285314), 205967 states have internal predecessors, (285314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:59,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205968 states to 205968 states and 285314 transitions. [2023-12-20 02:49:59,562 INFO L78 Accepts]: Start accepts. Automaton has 205968 states and 285314 transitions. Word has length 78 [2023-12-20 02:49:59,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:49:59,562 INFO L495 AbstractCegarLoop]: Abstraction has 205968 states and 285314 transitions. [2023-12-20 02:49:59,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:49:59,562 INFO L276 IsEmpty]: Start isEmpty. Operand 205968 states and 285314 transitions. [2023-12-20 02:49:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-20 02:49:59,571 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:49:59,571 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:49:59,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:49:59,572 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:49:59,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:49:59,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1442337281, now seen corresponding path program 1 times [2023-12-20 02:49:59,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:49:59,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540020421] [2023-12-20 02:49:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:49:59,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:49:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:49:59,606 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:49:59,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:49:59,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540020421] [2023-12-20 02:49:59,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540020421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:49:59,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:49:59,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:49:59,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508309365] [2023-12-20 02:49:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:49:59,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:49:59,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:49:59,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:49:59,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:49:59,607 INFO L87 Difference]: Start difference. First operand 205968 states and 285314 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:00,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:00,528 INFO L93 Difference]: Finished difference Result 317444 states and 438458 transitions. [2023-12-20 02:50:00,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:50:00,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2023-12-20 02:50:00,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:00,829 INFO L225 Difference]: With dead ends: 317444 [2023-12-20 02:50:00,830 INFO L226 Difference]: Without dead ends: 206043 [2023-12-20 02:50:00,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:50:00,905 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 88 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:00,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 326 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:50:01,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206043 states. [2023-12-20 02:50:03,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206043 to 205584. [2023-12-20 02:50:03,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205584 states, 205583 states have (on average 1.375775234333578) internal successors, (282836), 205583 states have internal predecessors, (282836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:03,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205584 states to 205584 states and 282836 transitions. [2023-12-20 02:50:03,506 INFO L78 Accepts]: Start accepts. Automaton has 205584 states and 282836 transitions. Word has length 79 [2023-12-20 02:50:03,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:03,507 INFO L495 AbstractCegarLoop]: Abstraction has 205584 states and 282836 transitions. [2023-12-20 02:50:03,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:03,507 INFO L276 IsEmpty]: Start isEmpty. Operand 205584 states and 282836 transitions. [2023-12-20 02:50:03,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-20 02:50:03,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:03,517 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:50:03,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:50:03,518 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:50:03,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1727233580, now seen corresponding path program 1 times [2023-12-20 02:50:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:03,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261268344] [2023-12-20 02:50:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:03,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-20 02:50:03,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:03,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261268344] [2023-12-20 02:50:03,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261268344] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:50:03,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:50:03,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:50:03,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535374363] [2023-12-20 02:50:03,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:50:03,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:50:03,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:03,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:50:03,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:50:03,581 INFO L87 Difference]: Start difference. First operand 205584 states and 282836 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:04,547 INFO L93 Difference]: Finished difference Result 295318 states and 408293 transitions. [2023-12-20 02:50:04,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:50:04,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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 80 [2023-12-20 02:50:04,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:05,187 INFO L225 Difference]: With dead ends: 295318 [2023-12-20 02:50:05,188 INFO L226 Difference]: Without dead ends: 268639 [2023-12-20 02:50:05,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:50:05,276 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 731 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:05,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 1115 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:50:05,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268639 states. [2023-12-20 02:50:07,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268639 to 226999. [2023-12-20 02:50:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226999 states, 226998 states have (on average 1.3738535141278778) internal successors, (311862), 226998 states have internal predecessors, (311862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226999 states to 226999 states and 311862 transitions. [2023-12-20 02:50:08,364 INFO L78 Accepts]: Start accepts. Automaton has 226999 states and 311862 transitions. Word has length 80 [2023-12-20 02:50:08,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:08,366 INFO L495 AbstractCegarLoop]: Abstraction has 226999 states and 311862 transitions. [2023-12-20 02:50:08,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:08,366 INFO L276 IsEmpty]: Start isEmpty. Operand 226999 states and 311862 transitions. [2023-12-20 02:50:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-20 02:50:08,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:08,385 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:50:08,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:50:08,386 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:50:08,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash 428123231, now seen corresponding path program 1 times [2023-12-20 02:50:08,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:08,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470032866] [2023-12-20 02:50:08,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:08,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:08,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470032866] [2023-12-20 02:50:08,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470032866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:50:08,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:50:08,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:50:08,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194458570] [2023-12-20 02:50:08,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:50:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:50:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:08,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:50:08,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:50:08,456 INFO L87 Difference]: Start difference. First operand 226999 states and 311862 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:10,167 INFO L93 Difference]: Finished difference Result 588857 states and 805461 transitions. [2023-12-20 02:50:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:50:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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 81 [2023-12-20 02:50:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:11,096 INFO L225 Difference]: With dead ends: 588857 [2023-12-20 02:50:11,096 INFO L226 Difference]: Without dead ends: 382689 [2023-12-20 02:50:11,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:50:11,297 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 90 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:11,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 334 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:50:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382689 states. [2023-12-20 02:50:14,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382689 to 371629. [2023-12-20 02:50:14,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371629 states, 371628 states have (on average 1.3505602376570118) internal successors, (501906), 371628 states have internal predecessors, (501906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:15,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371629 states to 371629 states and 501906 transitions. [2023-12-20 02:50:15,888 INFO L78 Accepts]: Start accepts. Automaton has 371629 states and 501906 transitions. Word has length 81 [2023-12-20 02:50:15,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:15,888 INFO L495 AbstractCegarLoop]: Abstraction has 371629 states and 501906 transitions. [2023-12-20 02:50:15,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:15,888 INFO L276 IsEmpty]: Start isEmpty. Operand 371629 states and 501906 transitions. [2023-12-20 02:50:15,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:50:15,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:15,902 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:50:15,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:50:15,902 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:50:15,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:15,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1223671146, now seen corresponding path program 1 times [2023-12-20 02:50:15,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:15,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717745745] [2023-12-20 02:50:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:15,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-20 02:50:15,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:15,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717745745] [2023-12-20 02:50:15,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717745745] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:50:15,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:50:15,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:50:15,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399520637] [2023-12-20 02:50:15,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:50:15,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:50:15,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:15,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:50:15,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:50:15,966 INFO L87 Difference]: Start difference. First operand 371629 states and 501906 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:18,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:18,652 INFO L93 Difference]: Finished difference Result 911035 states and 1227934 transitions. [2023-12-20 02:50:18,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:50:18,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:50:18,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:19,407 INFO L225 Difference]: With dead ends: 911035 [2023-12-20 02:50:19,408 INFO L226 Difference]: Without dead ends: 539472 [2023-12-20 02:50:19,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:50:19,572 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 646 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:19,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 179 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:50:20,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539472 states. [2023-12-20 02:50:25,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539472 to 536430. [2023-12-20 02:50:25,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536430 states, 536429 states have (on average 1.3379496634223729) internal successors, (717715), 536429 states have internal predecessors, (717715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:26,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536430 states to 536430 states and 717715 transitions. [2023-12-20 02:50:26,870 INFO L78 Accepts]: Start accepts. Automaton has 536430 states and 717715 transitions. Word has length 83 [2023-12-20 02:50:26,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:26,870 INFO L495 AbstractCegarLoop]: Abstraction has 536430 states and 717715 transitions. [2023-12-20 02:50:26,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:26,874 INFO L276 IsEmpty]: Start isEmpty. Operand 536430 states and 717715 transitions. [2023-12-20 02:50:26,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:50:26,891 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:26,891 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:50:26,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:50:26,892 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:50:26,897 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash -289513071, now seen corresponding path program 1 times [2023-12-20 02:50:26,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:26,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456867744] [2023-12-20 02:50:26,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:26,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 02:50:27,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456867744] [2023-12-20 02:50:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456867744] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:50:27,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:50:27,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:50:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076608879] [2023-12-20 02:50:27,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:50:27,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:50:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:27,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:50:27,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:50:27,014 INFO L87 Difference]: Start difference. First operand 536430 states and 717715 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:31,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:31,239 INFO L93 Difference]: Finished difference Result 1284147 states and 1714811 transitions. [2023-12-20 02:50:31,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:50:31,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:50:31,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:33,053 INFO L225 Difference]: With dead ends: 1284147 [2023-12-20 02:50:33,053 INFO L226 Difference]: Without dead ends: 747846 [2023-12-20 02:50:33,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:50:33,844 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 626 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:33,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 187 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:50:34,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747846 states. [2023-12-20 02:50:41,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747846 to 745007. [2023-12-20 02:50:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745007 states, 745006 states have (on average 1.3252175150267247) internal successors, (987295), 745006 states have internal predecessors, (987295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:45,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745007 states to 745007 states and 987295 transitions. [2023-12-20 02:50:45,608 INFO L78 Accepts]: Start accepts. Automaton has 745007 states and 987295 transitions. Word has length 83 [2023-12-20 02:50:45,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:50:45,609 INFO L495 AbstractCegarLoop]: Abstraction has 745007 states and 987295 transitions. [2023-12-20 02:50:45,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:45,609 INFO L276 IsEmpty]: Start isEmpty. Operand 745007 states and 987295 transitions. [2023-12-20 02:50:45,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:50:45,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:50:45,635 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:50:45,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:50:45,635 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:50:45,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:50:45,637 INFO L85 PathProgramCache]: Analyzing trace with hash 697915126, now seen corresponding path program 1 times [2023-12-20 02:50:45,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:50:45,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042869618] [2023-12-20 02:50:45,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:45,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:50:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:45,756 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:45,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:50:45,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042869618] [2023-12-20 02:50:45,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042869618] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:50:45,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967927301] [2023-12-20 02:50:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:50:45,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:50:45,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:50:45,759 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:50:45,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 02:50:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:50:45,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:50:45,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:50:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:46,131 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:50:46,265 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:50:46,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967927301] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:50:46,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:50:46,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-12-20 02:50:46,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057757829] [2023-12-20 02:50:46,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:50:46,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:50:46,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:50:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:50:46,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-12-20 02:50:46,268 INFO L87 Difference]: Start difference. First operand 745007 states and 987295 transitions. Second operand has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:50:54,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:50:54,697 INFO L93 Difference]: Finished difference Result 2140445 states and 2836632 transitions. [2023-12-20 02:50:54,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:50:54,698 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:50:54,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:50:59,221 INFO L225 Difference]: With dead ends: 2140445 [2023-12-20 02:50:59,221 INFO L226 Difference]: Without dead ends: 1502247 [2023-12-20 02:50:59,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 156 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:50:59,611 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 2617 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2617 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:50:59,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2617 Valid, 626 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:51:01,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502247 states. [2023-12-20 02:51:12,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502247 to 807734. [2023-12-20 02:51:13,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807734 states, 807733 states have (on average 1.32634670119953) internal successors, (1071334), 807733 states have internal predecessors, (1071334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:51:17,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807734 states to 807734 states and 1071334 transitions. [2023-12-20 02:51:17,660 INFO L78 Accepts]: Start accepts. Automaton has 807734 states and 1071334 transitions. Word has length 83 [2023-12-20 02:51:17,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:51:17,660 INFO L495 AbstractCegarLoop]: Abstraction has 807734 states and 1071334 transitions. [2023-12-20 02:51:17,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.909090909090908) internal successors, (142), 10 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:51:17,660 INFO L276 IsEmpty]: Start isEmpty. Operand 807734 states and 1071334 transitions. [2023-12-20 02:51:17,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-20 02:51:17,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:51:17,725 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:51:17,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 02:51:17,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-20 02:51:17,926 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 02:51:17,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:51:17,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1151919547, now seen corresponding path program 1 times [2023-12-20 02:51:17,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:51:17,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447951298] [2023-12-20 02:51:17,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:51:17,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:51:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:51:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-20 02:51:18,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:51:18,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447951298] [2023-12-20 02:51:18,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447951298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:51:18,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:51:18,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:51:18,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368523807] [2023-12-20 02:51:18,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:51:18,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:51:18,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:51:18,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:51:18,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:51:18,039 INFO L87 Difference]: Start difference. First operand 807734 states and 1071334 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:51:25,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:51:25,040 INFO L93 Difference]: Finished difference Result 1893030 states and 2507144 transitions. [2023-12-20 02:51:25,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:51:25,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2023-12-20 02:51:25,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:51:27,882 INFO L225 Difference]: With dead ends: 1893030 [2023-12-20 02:51:27,882 INFO L226 Difference]: Without dead ends: 1085520 [2023-12-20 02:51:28,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:51:28,490 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 608 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:51:28,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 195 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]