/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:18:46,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:18:46,810 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:18:46,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:18:46,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:18:46,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:18:46,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:18:46,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:18:46,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:18:46,841 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:18:46,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:18:46,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:18:46,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:18:46,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:18:46,844 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:18:46,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:18:46,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:18:46,844 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:18:46,844 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:18:46,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:18:46,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:18:46,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:18:46,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:18:46,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:18:46,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:18:46,846 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:18:46,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:18:46,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:18:46,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:18:46,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:18:46,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:18:46,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:18:46,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:18:46,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:18:46,849 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:18:46,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:18:46,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:18:46,850 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:18:47,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:18:47,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:18:47,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:18:47,071 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:18:47,072 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:18:47,073 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2023-12-16 06:18:48,096 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:18:48,272 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:18:48,272 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2023-12-16 06:18:48,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49940ec6c/b6ca5af5979147d3ae14f0baf4692efd/FLAG24546c7ed [2023-12-16 06:18:48,301 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49940ec6c/b6ca5af5979147d3ae14f0baf4692efd [2023-12-16 06:18:48,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:18:48,305 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:18:48,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:18:48,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:18:48,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:18:48,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf8315d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48, skipping insertion in model container [2023-12-16 06:18:48,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,369 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:18:48,584 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.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2023-12-16 06:18:48,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:18:48,656 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:18:48,697 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.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[7471,7484] [2023-12-16 06:18:48,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:18:48,729 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:18:48,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48 WrapperNode [2023-12-16 06:18:48,729 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:18:48,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:18:48,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:18:48,731 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:18:48,736 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,795 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 662 [2023-12-16 06:18:48,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:18:48,796 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:18:48,796 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:18:48,796 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:18:48,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,816 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,845 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 06:18:48,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,846 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:18:48,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:18:48,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:18:48,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:18:48,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (1/1) ... [2023-12-16 06:18:48,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:18:48,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:18:48,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:18:48,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:18:48,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:18:48,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:18:48,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:18:48,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:18:49,064 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:18:49,066 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:18:49,608 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:18:49,633 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:18:49,633 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:18:49,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:18:49 BoogieIcfgContainer [2023-12-16 06:18:49,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:18:49,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:18:49,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:18:49,637 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:18:49,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:18:48" (1/3) ... [2023-12-16 06:18:49,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1737388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:18:49, skipping insertion in model container [2023-12-16 06:18:49,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:18:48" (2/3) ... [2023-12-16 06:18:49,639 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1737388e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:18:49, skipping insertion in model container [2023-12-16 06:18:49,639 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:18:49" (3/3) ... [2023-12-16 06:18:49,639 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2023-12-16 06:18:49,652 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:18:49,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:18:49,685 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:18:49,689 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;@7fe9ecc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:18:49,690 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:18:49,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 160 states, 158 states have (on average 1.7151898734177216) internal successors, (271), 159 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-16 06:18:49,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:49,700 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] [2023-12-16 06:18:49,701 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:49,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:49,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1160311881, now seen corresponding path program 1 times [2023-12-16 06:18:49,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:49,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618935526] [2023-12-16 06:18:49,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:49,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:50,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:50,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618935526] [2023-12-16 06:18:50,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618935526] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:50,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:50,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:18:50,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206956944] [2023-12-16 06:18:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:50,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:50,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:50,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:50,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:50,100 INFO L87 Difference]: Start difference. First operand has 160 states, 158 states have (on average 1.7151898734177216) internal successors, (271), 159 states have internal predecessors, (271), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2023-12-16 06:18:50,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:50,295 INFO L93 Difference]: Finished difference Result 511 states and 830 transitions. [2023-12-16 06:18:50,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:50,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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 [2023-12-16 06:18:50,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:50,312 INFO L225 Difference]: With dead ends: 511 [2023-12-16 06:18:50,312 INFO L226 Difference]: Without dead ends: 437 [2023-12-16 06:18:50,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:50,317 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 910 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 910 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:50,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [910 Valid, 1266 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:50,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2023-12-16 06:18:50,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 255. [2023-12-16 06:18:50,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.5) internal successors, (381), 254 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:50,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 381 transitions. [2023-12-16 06:18:50,379 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 381 transitions. Word has length 49 [2023-12-16 06:18:50,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:50,380 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 381 transitions. [2023-12-16 06:18:50,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 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) [2023-12-16 06:18:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 381 transitions. [2023-12-16 06:18:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 06:18:50,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:50,384 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] [2023-12-16 06:18:50,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:18:50,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:50,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash 966264476, now seen corresponding path program 1 times [2023-12-16 06:18:50,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:50,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563129913] [2023-12-16 06:18:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:50,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:50,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:50,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:50,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563129913] [2023-12-16 06:18:50,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563129913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:50,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:50,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:50,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566274489] [2023-12-16 06:18:50,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:50,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:50,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:50,547 INFO L87 Difference]: Start difference. First operand 255 states and 381 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2023-12-16 06:18:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:50,593 INFO L93 Difference]: Finished difference Result 627 states and 953 transitions. [2023-12-16 06:18:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2023-12-16 06:18:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:50,597 INFO L225 Difference]: With dead ends: 627 [2023-12-16 06:18:50,597 INFO L226 Difference]: Without dead ends: 429 [2023-12-16 06:18:50,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:50,601 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 158 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:50,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 418 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:50,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-16 06:18:50,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 427. [2023-12-16 06:18:50,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 426 states have (on average 1.4859154929577465) internal successors, (633), 426 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:50,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 633 transitions. [2023-12-16 06:18:50,627 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 633 transitions. Word has length 52 [2023-12-16 06:18:50,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:50,628 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 633 transitions. [2023-12-16 06:18:50,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2023-12-16 06:18:50,628 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 633 transitions. [2023-12-16 06:18:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 06:18:50,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:50,629 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] [2023-12-16 06:18:50,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:18:50,630 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:50,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:50,630 INFO L85 PathProgramCache]: Analyzing trace with hash 992810235, now seen corresponding path program 1 times [2023-12-16 06:18:50,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:50,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131887950] [2023-12-16 06:18:50,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:50,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:50,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:50,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:50,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131887950] [2023-12-16 06:18:50,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131887950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:50,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:50,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:50,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563505422] [2023-12-16 06:18:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:50,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:50,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:50,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:50,724 INFO L87 Difference]: Start difference. First operand 427 states and 633 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2023-12-16 06:18:50,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:50,765 INFO L93 Difference]: Finished difference Result 1077 states and 1614 transitions. [2023-12-16 06:18:50,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:50,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2023-12-16 06:18:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:50,768 INFO L225 Difference]: With dead ends: 1077 [2023-12-16 06:18:50,768 INFO L226 Difference]: Without dead ends: 749 [2023-12-16 06:18:50,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:50,770 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 157 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:50,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:50,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-12-16 06:18:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 747. [2023-12-16 06:18:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 746 states have (on average 1.4731903485254692) internal successors, (1099), 746 states have internal predecessors, (1099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1099 transitions. [2023-12-16 06:18:50,785 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1099 transitions. Word has length 52 [2023-12-16 06:18:50,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:50,789 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1099 transitions. [2023-12-16 06:18:50,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2023-12-16 06:18:50,790 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1099 transitions. [2023-12-16 06:18:50,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-16 06:18:50,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:50,793 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] [2023-12-16 06:18:50,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:18:50,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:50,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:50,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1415622012, now seen corresponding path program 1 times [2023-12-16 06:18:50,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:50,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644027793] [2023-12-16 06:18:50,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:50,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:50,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:50,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644027793] [2023-12-16 06:18:50,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644027793] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:50,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:50,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:50,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295962369] [2023-12-16 06:18:50,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:50,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:50,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:50,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:50,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:50,878 INFO L87 Difference]: Start difference. First operand 747 states and 1099 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2023-12-16 06:18:50,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:50,906 INFO L93 Difference]: Finished difference Result 1858 states and 2746 transitions. [2023-12-16 06:18:50,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:50,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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 [2023-12-16 06:18:50,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:50,911 INFO L225 Difference]: With dead ends: 1858 [2023-12-16 06:18:50,912 INFO L226 Difference]: Without dead ends: 1294 [2023-12-16 06:18:50,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:50,918 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 144 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:50,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 432 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:50,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1294 states. [2023-12-16 06:18:50,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1294 to 1292. [2023-12-16 06:18:50,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1292 states, 1291 states have (on average 1.450813323005422) internal successors, (1873), 1291 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1873 transitions. [2023-12-16 06:18:50,944 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1873 transitions. Word has length 52 [2023-12-16 06:18:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:50,945 INFO L495 AbstractCegarLoop]: Abstraction has 1292 states and 1873 transitions. [2023-12-16 06:18:50,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 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) [2023-12-16 06:18:50,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1873 transitions. [2023-12-16 06:18:50,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 06:18:50,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:50,950 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] [2023-12-16 06:18:50,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:18:50,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:50,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1773262132, now seen corresponding path program 1 times [2023-12-16 06:18:50,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:50,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905187810] [2023-12-16 06:18:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:50,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905187810] [2023-12-16 06:18:51,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905187810] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:18:51,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360310592] [2023-12-16 06:18:51,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:51,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:51,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:51,080 INFO L87 Difference]: Start difference. First operand 1292 states and 1873 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2023-12-16 06:18:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:51,163 INFO L93 Difference]: Finished difference Result 2515 states and 3712 transitions. [2023-12-16 06:18:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:51,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 [2023-12-16 06:18:51,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:51,170 INFO L225 Difference]: With dead ends: 2515 [2023-12-16 06:18:51,170 INFO L226 Difference]: Without dead ends: 2149 [2023-12-16 06:18:51,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:51,171 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 633 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:51,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1126 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:51,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2149 states. [2023-12-16 06:18:51,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2149 to 1744. [2023-12-16 06:18:51,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1743 states have (on average 1.4584050487664946) internal successors, (2542), 1743 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:51,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2542 transitions. [2023-12-16 06:18:51,205 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2542 transitions. Word has length 53 [2023-12-16 06:18:51,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:51,205 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2542 transitions. [2023-12-16 06:18:51,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2023-12-16 06:18:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2542 transitions. [2023-12-16 06:18:51,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 06:18:51,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:51,207 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] [2023-12-16 06:18:51,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:18:51,207 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:51,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:51,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1554610116, now seen corresponding path program 1 times [2023-12-16 06:18:51,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:51,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640709057] [2023-12-16 06:18:51,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:51,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640709057] [2023-12-16 06:18:51,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640709057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:18:51,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363600136] [2023-12-16 06:18:51,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:51,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:51,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:51,310 INFO L87 Difference]: Start difference. First operand 1744 states and 2542 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2023-12-16 06:18:51,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:51,383 INFO L93 Difference]: Finished difference Result 2967 states and 4381 transitions. [2023-12-16 06:18:51,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:51,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 [2023-12-16 06:18:51,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:51,391 INFO L225 Difference]: With dead ends: 2967 [2023-12-16 06:18:51,392 INFO L226 Difference]: Without dead ends: 2601 [2023-12-16 06:18:51,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:51,394 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 625 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:51,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 985 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:51,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2023-12-16 06:18:51,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2090. [2023-12-16 06:18:51,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 2089 states have (on average 1.463379607467688) internal successors, (3057), 2089 states have internal predecessors, (3057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:51,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 3057 transitions. [2023-12-16 06:18:51,440 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 3057 transitions. Word has length 53 [2023-12-16 06:18:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:51,440 INFO L495 AbstractCegarLoop]: Abstraction has 2090 states and 3057 transitions. [2023-12-16 06:18:51,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2023-12-16 06:18:51,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 3057 transitions. [2023-12-16 06:18:51,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-16 06:18:51,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:51,441 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] [2023-12-16 06:18:51,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:18:51,442 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:51,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:51,442 INFO L85 PathProgramCache]: Analyzing trace with hash -70625906, now seen corresponding path program 1 times [2023-12-16 06:18:51,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:51,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798973453] [2023-12-16 06:18:51,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:51,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798973453] [2023-12-16 06:18:51,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798973453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:18:51,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501920550] [2023-12-16 06:18:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:51,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:51,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:51,536 INFO L87 Difference]: Start difference. First operand 2090 states and 3057 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2023-12-16 06:18:51,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:51,607 INFO L93 Difference]: Finished difference Result 3366 states and 4971 transitions. [2023-12-16 06:18:51,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:51,607 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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 [2023-12-16 06:18:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:51,615 INFO L225 Difference]: With dead ends: 3366 [2023-12-16 06:18:51,615 INFO L226 Difference]: Without dead ends: 3000 [2023-12-16 06:18:51,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:51,619 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 627 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:51,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 1126 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:51,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3000 states. [2023-12-16 06:18:51,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3000 to 2381. [2023-12-16 06:18:51,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2380 states have (on average 1.4668067226890755) internal successors, (3491), 2380 states have internal predecessors, (3491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:51,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3491 transitions. [2023-12-16 06:18:51,667 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3491 transitions. Word has length 53 [2023-12-16 06:18:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:51,667 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3491 transitions. [2023-12-16 06:18:51,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 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) [2023-12-16 06:18:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3491 transitions. [2023-12-16 06:18:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 06:18:51,669 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:51,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:51,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:18:51,669 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:51,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash 901626181, now seen corresponding path program 1 times [2023-12-16 06:18:51,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:51,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915005052] [2023-12-16 06:18:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:51,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:51,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:51,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:51,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915005052] [2023-12-16 06:18:51,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915005052] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:51,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:51,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:18:51,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421576548] [2023-12-16 06:18:51,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:51,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:51,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:51,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:51,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:51,742 INFO L87 Difference]: Start difference. First operand 2381 states and 3491 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:51,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:51,921 INFO L93 Difference]: Finished difference Result 5654 states and 8291 transitions. [2023-12-16 06:18:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:51,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-16 06:18:51,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:51,930 INFO L225 Difference]: With dead ends: 5654 [2023-12-16 06:18:51,930 INFO L226 Difference]: Without dead ends: 3318 [2023-12-16 06:18:51,933 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 [2023-12-16 06:18:51,934 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 895 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:51,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 224 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:51,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2023-12-16 06:18:51,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 3300. [2023-12-16 06:18:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3299 states have (on average 1.4552894816611095) internal successors, (4801), 3299 states have internal predecessors, (4801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:51,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4801 transitions. [2023-12-16 06:18:51,983 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4801 transitions. Word has length 57 [2023-12-16 06:18:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:51,983 INFO L495 AbstractCegarLoop]: Abstraction has 3300 states and 4801 transitions. [2023-12-16 06:18:51,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4801 transitions. [2023-12-16 06:18:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-16 06:18:51,985 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:51,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:51,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:18:51,985 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:51,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:51,986 INFO L85 PathProgramCache]: Analyzing trace with hash -541876395, now seen corresponding path program 1 times [2023-12-16 06:18:51,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:51,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417046949] [2023-12-16 06:18:51,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:51,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:52,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:52,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417046949] [2023-12-16 06:18:52,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417046949] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:52,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:52,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:18:52,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902003941] [2023-12-16 06:18:52,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:52,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:52,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:52,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:52,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:52,050 INFO L87 Difference]: Start difference. First operand 3300 states and 4801 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:52,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:52,214 INFO L93 Difference]: Finished difference Result 7792 states and 11330 transitions. [2023-12-16 06:18:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:52,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2023-12-16 06:18:52,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:52,226 INFO L225 Difference]: With dead ends: 7792 [2023-12-16 06:18:52,226 INFO L226 Difference]: Without dead ends: 4573 [2023-12-16 06:18:52,231 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 [2023-12-16 06:18:52,233 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 852 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:52,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 226 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:52,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2023-12-16 06:18:52,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 4548. [2023-12-16 06:18:52,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4547 states have (on average 1.4407301517484055) internal successors, (6551), 4547 states have internal predecessors, (6551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:52,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6551 transitions. [2023-12-16 06:18:52,308 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 6551 transitions. Word has length 57 [2023-12-16 06:18:52,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:52,309 INFO L495 AbstractCegarLoop]: Abstraction has 4548 states and 6551 transitions. [2023-12-16 06:18:52,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:52,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 6551 transitions. [2023-12-16 06:18:52,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-16 06:18:52,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:52,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:52,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:18:52,311 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:52,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:52,311 INFO L85 PathProgramCache]: Analyzing trace with hash 55402618, now seen corresponding path program 1 times [2023-12-16 06:18:52,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:52,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767361320] [2023-12-16 06:18:52,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:52,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:52,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:52,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767361320] [2023-12-16 06:18:52,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767361320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:52,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:52,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:18:52,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116559649] [2023-12-16 06:18:52,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:52,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:18:52,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:52,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:18:52,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:18:52,391 INFO L87 Difference]: Start difference. First operand 4548 states and 6551 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:52,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:52,560 INFO L93 Difference]: Finished difference Result 13097 states and 18889 transitions. [2023-12-16 06:18:52,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:18:52,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2023-12-16 06:18:52,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:52,588 INFO L225 Difference]: With dead ends: 13097 [2023-12-16 06:18:52,588 INFO L226 Difference]: Without dead ends: 8576 [2023-12-16 06:18:52,596 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 [2023-12-16 06:18:52,597 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 919 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:52,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 213 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:18:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8576 states. [2023-12-16 06:18:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8576 to 8525. [2023-12-16 06:18:52,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8525 states, 8524 states have (on average 1.429493195682778) internal successors, (12185), 8524 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:52,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8525 states to 8525 states and 12185 transitions. [2023-12-16 06:18:52,742 INFO L78 Accepts]: Start accepts. Automaton has 8525 states and 12185 transitions. Word has length 58 [2023-12-16 06:18:52,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:52,743 INFO L495 AbstractCegarLoop]: Abstraction has 8525 states and 12185 transitions. [2023-12-16 06:18:52,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:52,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8525 states and 12185 transitions. [2023-12-16 06:18:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 06:18:52,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:52,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:52,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:18:52,747 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:52,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:52,748 INFO L85 PathProgramCache]: Analyzing trace with hash -444759938, now seen corresponding path program 1 times [2023-12-16 06:18:52,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:52,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119992349] [2023-12-16 06:18:52,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:52,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:52,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119992349] [2023-12-16 06:18:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119992349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:52,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:52,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:52,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282462745] [2023-12-16 06:18:52,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:52,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:52,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:52,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:52,889 INFO L87 Difference]: Start difference. First operand 8525 states and 12185 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:53,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:53,242 INFO L93 Difference]: Finished difference Result 33188 states and 47107 transitions. [2023-12-16 06:18:53,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:18:53,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-16 06:18:53,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:53,300 INFO L225 Difference]: With dead ends: 33188 [2023-12-16 06:18:53,301 INFO L226 Difference]: Without dead ends: 28810 [2023-12-16 06:18:53,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:18:53,319 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 2094 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:53,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 341 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:18:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28810 states. [2023-12-16 06:18:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28810 to 8545. [2023-12-16 06:18:53,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8545 states, 8544 states have (on average 1.4289559925093633) internal successors, (12209), 8544 states have internal predecessors, (12209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8545 states to 8545 states and 12209 transitions. [2023-12-16 06:18:53,608 INFO L78 Accepts]: Start accepts. Automaton has 8545 states and 12209 transitions. Word has length 59 [2023-12-16 06:18:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:53,609 INFO L495 AbstractCegarLoop]: Abstraction has 8545 states and 12209 transitions. [2023-12-16 06:18:53,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8545 states and 12209 transitions. [2023-12-16 06:18:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 06:18:53,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:53,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:53,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:18:53,615 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:53,616 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash -520399649, now seen corresponding path program 1 times [2023-12-16 06:18:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:53,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074089239] [2023-12-16 06:18:53,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:53,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:53,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:53,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:53,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074089239] [2023-12-16 06:18:53,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074089239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:53,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:53,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:53,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070297521] [2023-12-16 06:18:53,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:53,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:53,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:53,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:53,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:53,710 INFO L87 Difference]: Start difference. First operand 8545 states and 12209 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:54,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:54,111 INFO L93 Difference]: Finished difference Result 39222 states and 55831 transitions. [2023-12-16 06:18:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:18:54,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-16 06:18:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:54,171 INFO L225 Difference]: With dead ends: 39222 [2023-12-16 06:18:54,171 INFO L226 Difference]: Without dead ends: 34968 [2023-12-16 06:18:54,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:18:54,189 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 2386 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:54,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 386 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:18:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34968 states. [2023-12-16 06:18:54,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34968 to 8655. [2023-12-16 06:18:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8655 states, 8654 states have (on average 1.4272012941992143) internal successors, (12351), 8654 states have internal predecessors, (12351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8655 states to 8655 states and 12351 transitions. [2023-12-16 06:18:54,478 INFO L78 Accepts]: Start accepts. Automaton has 8655 states and 12351 transitions. Word has length 59 [2023-12-16 06:18:54,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:54,478 INFO L495 AbstractCegarLoop]: Abstraction has 8655 states and 12351 transitions. [2023-12-16 06:18:54,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:54,478 INFO L276 IsEmpty]: Start isEmpty. Operand 8655 states and 12351 transitions. [2023-12-16 06:18:54,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 06:18:54,481 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:54,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:54,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:18:54,481 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:54,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:54,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1892561408, now seen corresponding path program 1 times [2023-12-16 06:18:54,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:54,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335820288] [2023-12-16 06:18:54,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:54,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:54,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:54,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:54,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335820288] [2023-12-16 06:18:54,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335820288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:54,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:54,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:18:54,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572055521] [2023-12-16 06:18:54,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:54,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 06:18:54,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:54,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 06:18:54,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 06:18:54,552 INFO L87 Difference]: Start difference. First operand 8655 states and 12351 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:55,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:55,009 INFO L93 Difference]: Finished difference Result 45959 states and 65251 transitions. [2023-12-16 06:18:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 06:18:55,010 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2023-12-16 06:18:55,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:55,087 INFO L225 Difference]: With dead ends: 45959 [2023-12-16 06:18:55,087 INFO L226 Difference]: Without dead ends: 42861 [2023-12-16 06:18:55,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:18:55,107 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 2758 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2758 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:55,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2758 Valid, 408 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:18:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42861 states. [2023-12-16 06:18:55,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42861 to 8711. [2023-12-16 06:18:55,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8711 states, 8710 states have (on average 1.425947187141217) internal successors, (12420), 8710 states have internal predecessors, (12420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:55,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8711 states to 8711 states and 12420 transitions. [2023-12-16 06:18:55,473 INFO L78 Accepts]: Start accepts. Automaton has 8711 states and 12420 transitions. Word has length 59 [2023-12-16 06:18:55,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:55,473 INFO L495 AbstractCegarLoop]: Abstraction has 8711 states and 12420 transitions. [2023-12-16 06:18:55,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 6 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:55,474 INFO L276 IsEmpty]: Start isEmpty. Operand 8711 states and 12420 transitions. [2023-12-16 06:18:55,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 06:18:55,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:55,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:55,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:18:55,477 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:55,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:55,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2088840466, now seen corresponding path program 1 times [2023-12-16 06:18:55,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:55,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018761873] [2023-12-16 06:18:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:55,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:55,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:55,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018761873] [2023-12-16 06:18:55,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018761873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:55,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:55,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:18:55,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648163061] [2023-12-16 06:18:55,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:55,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:18:55,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:55,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:18:55,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:18:55,728 INFO L87 Difference]: Start difference. First operand 8711 states and 12420 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:56,474 INFO L93 Difference]: Finished difference Result 29531 states and 42066 transitions. [2023-12-16 06:18:56,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 06:18:56,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-16 06:18:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:56,502 INFO L225 Difference]: With dead ends: 29531 [2023-12-16 06:18:56,503 INFO L226 Difference]: Without dead ends: 22360 [2023-12-16 06:18:56,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-12-16 06:18:56,516 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1968 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1968 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:56,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1968 Valid, 1178 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:18:56,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22360 states. [2023-12-16 06:18:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22360 to 8545. [2023-12-16 06:18:56,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8545 states, 8544 states have (on average 1.4240402621722847) internal successors, (12167), 8544 states have internal predecessors, (12167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8545 states to 8545 states and 12167 transitions. [2023-12-16 06:18:56,740 INFO L78 Accepts]: Start accepts. Automaton has 8545 states and 12167 transitions. Word has length 61 [2023-12-16 06:18:56,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:56,740 INFO L495 AbstractCegarLoop]: Abstraction has 8545 states and 12167 transitions. [2023-12-16 06:18:56,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 8545 states and 12167 transitions. [2023-12-16 06:18:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 06:18:56,745 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:56,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:56,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:18:56,745 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:56,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1783315053, now seen corresponding path program 1 times [2023-12-16 06:18:56,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:56,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888109969] [2023-12-16 06:18:56,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:56,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:56,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:56,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888109969] [2023-12-16 06:18:56,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888109969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:56,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:56,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:18:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237642392] [2023-12-16 06:18:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:18:56,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:56,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:18:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:18:56,966 INFO L87 Difference]: Start difference. First operand 8545 states and 12167 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:57,878 INFO L93 Difference]: Finished difference Result 25917 states and 36684 transitions. [2023-12-16 06:18:57,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-16 06:18:57,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-16 06:18:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:57,901 INFO L225 Difference]: With dead ends: 25917 [2023-12-16 06:18:57,901 INFO L226 Difference]: Without dead ends: 18607 [2023-12-16 06:18:57,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=197, Invalid=559, Unknown=0, NotChecked=0, Total=756 [2023-12-16 06:18:57,918 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 1895 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1895 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:57,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1895 Valid, 1187 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:18:57,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18607 states. [2023-12-16 06:18:58,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18607 to 8252. [2023-12-16 06:18:58,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8252 states, 8251 states have (on average 1.4229790328445038) internal successors, (11741), 8251 states have internal predecessors, (11741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:58,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8252 states to 8252 states and 11741 transitions. [2023-12-16 06:18:58,136 INFO L78 Accepts]: Start accepts. Automaton has 8252 states and 11741 transitions. Word has length 61 [2023-12-16 06:18:58,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:58,136 INFO L495 AbstractCegarLoop]: Abstraction has 8252 states and 11741 transitions. [2023-12-16 06:18:58,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:58,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8252 states and 11741 transitions. [2023-12-16 06:18:58,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 06:18:58,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:58,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:58,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:18:58,139 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:58,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:58,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1232591148, now seen corresponding path program 1 times [2023-12-16 06:18:58,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:58,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573752655] [2023-12-16 06:18:58,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:58,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:58,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:58,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:58,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573752655] [2023-12-16 06:18:58,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573752655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:58,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:58,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 06:18:58,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32907045] [2023-12-16 06:18:58,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:58,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:18:58,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:58,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:18:58,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:18:58,372 INFO L87 Difference]: Start difference. First operand 8252 states and 11741 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,300 INFO L93 Difference]: Finished difference Result 30254 states and 43009 transitions. [2023-12-16 06:18:59,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-16 06:18:59,301 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2023-12-16 06:18:59,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,326 INFO L225 Difference]: With dead ends: 30254 [2023-12-16 06:18:59,326 INFO L226 Difference]: Without dead ends: 23151 [2023-12-16 06:18:59,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2023-12-16 06:18:59,341 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 1332 mSDsluCounter, 1385 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 1649 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1230 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 06:18:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23151 states. [2023-12-16 06:18:59,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23151 to 8111. [2023-12-16 06:18:59,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8111 states, 8110 states have (on average 1.4236744759556104) internal successors, (11546), 8110 states have internal predecessors, (11546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8111 states to 8111 states and 11546 transitions. [2023-12-16 06:18:59,546 INFO L78 Accepts]: Start accepts. Automaton has 8111 states and 11546 transitions. Word has length 61 [2023-12-16 06:18:59,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,546 INFO L495 AbstractCegarLoop]: Abstraction has 8111 states and 11546 transitions. [2023-12-16 06:18:59,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 8 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 8111 states and 11546 transitions. [2023-12-16 06:18:59,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:18:59,549 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:59,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:18:59,549 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:59,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,550 INFO L85 PathProgramCache]: Analyzing trace with hash 574436983, now seen corresponding path program 1 times [2023-12-16 06:18:59,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263113992] [2023-12-16 06:18:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263113992] [2023-12-16 06:18:59,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263113992] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208322696] [2023-12-16 06:18:59,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,584 INFO L87 Difference]: Start difference. First operand 8111 states and 11546 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,618 INFO L93 Difference]: Finished difference Result 11168 states and 15855 transitions. [2023-12-16 06:18:59,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-12-16 06:18:59,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,626 INFO L225 Difference]: With dead ends: 11168 [2023-12-16 06:18:59,627 INFO L226 Difference]: Without dead ends: 7914 [2023-12-16 06:18:59,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,632 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 150 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 521 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7914 states. [2023-12-16 06:18:59,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7914 to 7912. [2023-12-16 06:18:59,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7912 states, 7911 states have (on average 1.3971684995575782) internal successors, (11053), 7911 states have internal predecessors, (11053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7912 states to 7912 states and 11053 transitions. [2023-12-16 06:18:59,729 INFO L78 Accepts]: Start accepts. Automaton has 7912 states and 11053 transitions. Word has length 62 [2023-12-16 06:18:59,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,729 INFO L495 AbstractCegarLoop]: Abstraction has 7912 states and 11053 transitions. [2023-12-16 06:18:59,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,729 INFO L276 IsEmpty]: Start isEmpty. Operand 7912 states and 11053 transitions. [2023-12-16 06:18:59,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:18:59,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:59,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:18:59,732 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:59,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1506383405, now seen corresponding path program 1 times [2023-12-16 06:18:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233460923] [2023-12-16 06:18:59,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233460923] [2023-12-16 06:18:59,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233460923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117355100] [2023-12-16 06:18:59,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,771 INFO L87 Difference]: Start difference. First operand 7912 states and 11053 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,803 INFO L93 Difference]: Finished difference Result 11328 states and 15820 transitions. [2023-12-16 06:18:59,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-12-16 06:18:59,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,812 INFO L225 Difference]: With dead ends: 11328 [2023-12-16 06:18:59,812 INFO L226 Difference]: Without dead ends: 7040 [2023-12-16 06:18:59,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,818 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 136 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 516 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7040 states. [2023-12-16 06:18:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7040 to 7038. [2023-12-16 06:18:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7038 states, 7037 states have (on average 1.3751598692624698) internal successors, (9677), 7037 states have internal predecessors, (9677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7038 states to 7038 states and 9677 transitions. [2023-12-16 06:18:59,894 INFO L78 Accepts]: Start accepts. Automaton has 7038 states and 9677 transitions. Word has length 62 [2023-12-16 06:18:59,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:18:59,895 INFO L495 AbstractCegarLoop]: Abstraction has 7038 states and 9677 transitions. [2023-12-16 06:18:59,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,895 INFO L276 IsEmpty]: Start isEmpty. Operand 7038 states and 9677 transitions. [2023-12-16 06:18:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-16 06:18:59,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:18:59,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:18:59,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:18:59,898 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:18:59,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:18:59,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1863112174, now seen corresponding path program 1 times [2023-12-16 06:18:59,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:18:59,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916643115] [2023-12-16 06:18:59,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:18:59,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:18:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:18:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:18:59,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:18:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916643115] [2023-12-16 06:18:59,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916643115] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:18:59,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:18:59,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:18:59,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046292371] [2023-12-16 06:18:59,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:18:59,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:18:59,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:18:59,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:18:59,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,932 INFO L87 Difference]: Start difference. First operand 7038 states and 9677 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:18:59,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:18:59,961 INFO L93 Difference]: Finished difference Result 9422 states and 12951 transitions. [2023-12-16 06:18:59,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:18:59,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2023-12-16 06:18:59,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:18:59,968 INFO L225 Difference]: With dead ends: 9422 [2023-12-16 06:18:59,968 INFO L226 Difference]: Without dead ends: 5435 [2023-12-16 06:18:59,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:18:59,973 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 148 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:18:59,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 527 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:18:59,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5435 states. [2023-12-16 06:19:00,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5435 to 5433. [2023-12-16 06:19:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5433 states, 5432 states have (on average 1.3519882179675995) internal successors, (7344), 5432 states have internal predecessors, (7344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5433 states to 5433 states and 7344 transitions. [2023-12-16 06:19:00,030 INFO L78 Accepts]: Start accepts. Automaton has 5433 states and 7344 transitions. Word has length 62 [2023-12-16 06:19:00,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:00,030 INFO L495 AbstractCegarLoop]: Abstraction has 5433 states and 7344 transitions. [2023-12-16 06:19:00,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:00,031 INFO L276 IsEmpty]: Start isEmpty. Operand 5433 states and 7344 transitions. [2023-12-16 06:19:00,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:19:00,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:00,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:00,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:19:00,033 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:00,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:00,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1653707668, now seen corresponding path program 1 times [2023-12-16 06:19:00,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:00,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422685847] [2023-12-16 06:19:00,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:00,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:00,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:00,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:00,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422685847] [2023-12-16 06:19:00,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422685847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:00,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:00,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:00,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749025563] [2023-12-16 06:19:00,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:00,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:00,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:00,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:00,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:00,077 INFO L87 Difference]: Start difference. First operand 5433 states and 7344 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:00,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:00,115 INFO L93 Difference]: Finished difference Result 10137 states and 13773 transitions. [2023-12-16 06:19:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:00,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-16 06:19:00,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:00,123 INFO L225 Difference]: With dead ends: 10137 [2023-12-16 06:19:00,124 INFO L226 Difference]: Without dead ends: 7400 [2023-12-16 06:19:00,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:00,128 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 173 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:00,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 345 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7400 states. [2023-12-16 06:19:00,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7400 to 5216. [2023-12-16 06:19:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 1.35071907957814) internal successors, (7044), 5215 states have internal predecessors, (7044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7044 transitions. [2023-12-16 06:19:00,192 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7044 transitions. Word has length 63 [2023-12-16 06:19:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:00,193 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7044 transitions. [2023-12-16 06:19:00,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7044 transitions. [2023-12-16 06:19:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:19:00,195 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:00,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:00,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:19:00,195 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:00,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1460142013, now seen corresponding path program 1 times [2023-12-16 06:19:00,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:00,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856408764] [2023-12-16 06:19:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:00,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:01,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:01,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856408764] [2023-12-16 06:19:01,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856408764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:01,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:01,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2023-12-16 06:19:01,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813831627] [2023-12-16 06:19:01,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:01,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-12-16 06:19:01,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-12-16 06:19:01,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:19:01,109 INFO L87 Difference]: Start difference. First operand 5216 states and 7044 transitions. Second operand has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:04,494 INFO L93 Difference]: Finished difference Result 10054 states and 13664 transitions. [2023-12-16 06:19:04,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-16 06:19:04,494 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-16 06:19:04,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:04,504 INFO L225 Difference]: With dead ends: 10054 [2023-12-16 06:19:04,505 INFO L226 Difference]: Without dead ends: 9938 [2023-12-16 06:19:04,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=374, Invalid=1788, Unknown=0, NotChecked=0, Total=2162 [2023-12-16 06:19:04,508 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 2182 mSDsluCounter, 7204 mSDsCounter, 0 mSdLazyCounter, 4221 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2182 SdHoareTripleChecker+Valid, 7721 SdHoareTripleChecker+Invalid, 4224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:04,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2182 Valid, 7721 Invalid, 4224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4221 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-16 06:19:04,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9938 states. [2023-12-16 06:19:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9938 to 5216. [2023-12-16 06:19:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5216 states, 5215 states have (on average 1.3505273250239693) internal successors, (7043), 5215 states have internal predecessors, (7043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 5216 states and 7043 transitions. [2023-12-16 06:19:04,571 INFO L78 Accepts]: Start accepts. Automaton has 5216 states and 7043 transitions. Word has length 63 [2023-12-16 06:19:04,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:04,571 INFO L495 AbstractCegarLoop]: Abstraction has 5216 states and 7043 transitions. [2023-12-16 06:19:04,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5216 states and 7043 transitions. [2023-12-16 06:19:04,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:19:04,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:04,573 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:04,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:19:04,573 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:04,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:04,574 INFO L85 PathProgramCache]: Analyzing trace with hash -371341941, now seen corresponding path program 1 times [2023-12-16 06:19:04,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:04,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046502128] [2023-12-16 06:19:04,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:04,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:04,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:04,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:04,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046502128] [2023-12-16 06:19:04,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046502128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:04,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:04,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 06:19:04,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845820248] [2023-12-16 06:19:04,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:04,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:19:04,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:04,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:19:04,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:19:04,964 INFO L87 Difference]: Start difference. First operand 5216 states and 7043 transitions. Second operand has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:06,051 INFO L93 Difference]: Finished difference Result 9892 states and 13433 transitions. [2023-12-16 06:19:06,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 06:19:06,052 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-16 06:19:06,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:06,061 INFO L225 Difference]: With dead ends: 9892 [2023-12-16 06:19:06,061 INFO L226 Difference]: Without dead ends: 9216 [2023-12-16 06:19:06,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=190, Invalid=566, Unknown=0, NotChecked=0, Total=756 [2023-12-16 06:19:06,065 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 2060 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 3164 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:06,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 3164 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:19:06,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9216 states. [2023-12-16 06:19:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9216 to 5098. [2023-12-16 06:19:06,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5098 states, 5097 states have (on average 1.3509907788895428) internal successors, (6886), 5097 states have internal predecessors, (6886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 6886 transitions. [2023-12-16 06:19:06,132 INFO L78 Accepts]: Start accepts. Automaton has 5098 states and 6886 transitions. Word has length 63 [2023-12-16 06:19:06,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:06,132 INFO L495 AbstractCegarLoop]: Abstraction has 5098 states and 6886 transitions. [2023-12-16 06:19:06,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.846153846153846) internal successors, (63), 12 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:06,133 INFO L276 IsEmpty]: Start isEmpty. Operand 5098 states and 6886 transitions. [2023-12-16 06:19:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:19:06,134 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:06,134 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:06,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 06:19:06,135 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:06,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:06,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1637588281, now seen corresponding path program 1 times [2023-12-16 06:19:06,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:06,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788150577] [2023-12-16 06:19:06,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:06,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:06,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:06,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788150577] [2023-12-16 06:19:06,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788150577] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:06,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:06,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-16 06:19:06,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000567199] [2023-12-16 06:19:06,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:06,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-16 06:19:06,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:06,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-16 06:19:06,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:19:06,521 INFO L87 Difference]: Start difference. First operand 5098 states and 6886 transitions. Second operand has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,007 INFO L93 Difference]: Finished difference Result 16632 states and 22713 transitions. [2023-12-16 06:19:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-16 06:19:08,008 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-16 06:19:08,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,028 INFO L225 Difference]: With dead ends: 16632 [2023-12-16 06:19:08,028 INFO L226 Difference]: Without dead ends: 16166 [2023-12-16 06:19:08,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=320, Invalid=1162, Unknown=0, NotChecked=0, Total=1482 [2023-12-16 06:19:08,036 INFO L413 NwaCegarLoop]: 636 mSDtfsCounter, 2896 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2896 SdHoareTripleChecker+Valid, 6088 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:08,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2896 Valid, 6088 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 947 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 06:19:08,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16166 states. [2023-12-16 06:19:08,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16166 to 5004. [2023-12-16 06:19:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5004 states, 5003 states have (on average 1.3509894063561863) internal successors, (6759), 5003 states have internal predecessors, (6759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6759 transitions. [2023-12-16 06:19:08,130 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6759 transitions. Word has length 63 [2023-12-16 06:19:08,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:08,130 INFO L495 AbstractCegarLoop]: Abstraction has 5004 states and 6759 transitions. [2023-12-16 06:19:08,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.5) internal successors, (63), 13 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6759 transitions. [2023-12-16 06:19:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-16 06:19:08,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:08,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:08,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 06:19:08,132 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:08,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:08,132 INFO L85 PathProgramCache]: Analyzing trace with hash 895185990, now seen corresponding path program 1 times [2023-12-16 06:19:08,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:08,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337615113] [2023-12-16 06:19:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:08,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:08,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337615113] [2023-12-16 06:19:08,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337615113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:08,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:08,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:08,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628271284] [2023-12-16 06:19:08,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:08,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:08,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:08,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,156 INFO L87 Difference]: Start difference. First operand 5004 states and 6759 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,190 INFO L93 Difference]: Finished difference Result 9432 states and 12813 transitions. [2023-12-16 06:19:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:08,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2023-12-16 06:19:08,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,196 INFO L225 Difference]: With dead ends: 9432 [2023-12-16 06:19:08,196 INFO L226 Difference]: Without dead ends: 6812 [2023-12-16 06:19:08,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,199 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 173 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:08,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 357 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6812 states. [2023-12-16 06:19:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6812 to 4732. [2023-12-16 06:19:08,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4732 states, 4731 states have (on average 1.3506658211794547) internal successors, (6390), 4731 states have internal predecessors, (6390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4732 states to 4732 states and 6390 transitions. [2023-12-16 06:19:08,242 INFO L78 Accepts]: Start accepts. Automaton has 4732 states and 6390 transitions. Word has length 63 [2023-12-16 06:19:08,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:08,242 INFO L495 AbstractCegarLoop]: Abstraction has 4732 states and 6390 transitions. [2023-12-16 06:19:08,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,243 INFO L276 IsEmpty]: Start isEmpty. Operand 4732 states and 6390 transitions. [2023-12-16 06:19:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-16 06:19:08,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:08,245 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:08,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 06:19:08,245 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:08,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:08,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1607583403, now seen corresponding path program 1 times [2023-12-16 06:19:08,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:08,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722464512] [2023-12-16 06:19:08,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:08,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:08,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:08,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:08,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:08,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722464512] [2023-12-16 06:19:08,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722464512] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:08,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:08,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 06:19:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923751667] [2023-12-16 06:19:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:08,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:19:08,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:19:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:08,299 INFO L87 Difference]: Start difference. First operand 4732 states and 6390 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,340 INFO L93 Difference]: Finished difference Result 4738 states and 6393 transitions. [2023-12-16 06:19:08,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 06:19:08,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2023-12-16 06:19:08,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,344 INFO L225 Difference]: With dead ends: 4738 [2023-12-16 06:19:08,344 INFO L226 Difference]: Without dead ends: 4263 [2023-12-16 06:19:08,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:19:08,347 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 555 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:08,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 668 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4263 states. [2023-12-16 06:19:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4263 to 4259. [2023-12-16 06:19:08,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 4258 states have (on average 1.3539220291216534) internal successors, (5765), 4258 states have internal predecessors, (5765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 5765 transitions. [2023-12-16 06:19:08,382 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 5765 transitions. Word has length 68 [2023-12-16 06:19:08,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:08,382 INFO L495 AbstractCegarLoop]: Abstraction has 4259 states and 5765 transitions. [2023-12-16 06:19:08,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 5765 transitions. [2023-12-16 06:19:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-16 06:19:08,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:08,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:08,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 06:19:08,385 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:08,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:08,385 INFO L85 PathProgramCache]: Analyzing trace with hash -701031860, now seen corresponding path program 1 times [2023-12-16 06:19:08,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:08,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244358210] [2023-12-16 06:19:08,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:08,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:08,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:08,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244358210] [2023-12-16 06:19:08,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244358210] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:08,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:08,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:08,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690089129] [2023-12-16 06:19:08,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:08,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:08,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:08,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:08,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,447 INFO L87 Difference]: Start difference. First operand 4259 states and 5765 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2023-12-16 06:19:08,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,476 INFO L93 Difference]: Finished difference Result 11009 states and 15029 transitions. [2023-12-16 06:19:08,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:08,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 71 [2023-12-16 06:19:08,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,483 INFO L225 Difference]: With dead ends: 11009 [2023-12-16 06:19:08,483 INFO L226 Difference]: Without dead ends: 7351 [2023-12-16 06:19:08,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,488 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 116 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:08,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 437 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7351 states. [2023-12-16 06:19:08,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7351 to 6833. [2023-12-16 06:19:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6833 states, 6832 states have (on average 1.3473360655737705) internal successors, (9205), 6832 states have internal predecessors, (9205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6833 states to 6833 states and 9205 transitions. [2023-12-16 06:19:08,583 INFO L78 Accepts]: Start accepts. Automaton has 6833 states and 9205 transitions. Word has length 71 [2023-12-16 06:19:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:08,584 INFO L495 AbstractCegarLoop]: Abstraction has 6833 states and 9205 transitions. [2023-12-16 06:19:08,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2023-12-16 06:19:08,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6833 states and 9205 transitions. [2023-12-16 06:19:08,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-16 06:19:08,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:08,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:08,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 06:19:08,586 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:08,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:08,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1394163845, now seen corresponding path program 1 times [2023-12-16 06:19:08,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:08,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245607747] [2023-12-16 06:19:08,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:08,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:08,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:08,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:08,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245607747] [2023-12-16 06:19:08,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245607747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:08,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:08,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:08,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367254497] [2023-12-16 06:19:08,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:08,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:08,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:08,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:08,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,645 INFO L87 Difference]: Start difference. First operand 6833 states and 9205 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2023-12-16 06:19:08,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,684 INFO L93 Difference]: Finished difference Result 18637 states and 25249 transitions. [2023-12-16 06:19:08,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:08,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 72 [2023-12-16 06:19:08,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,697 INFO L225 Difference]: With dead ends: 18637 [2023-12-16 06:19:08,697 INFO L226 Difference]: Without dead ends: 12425 [2023-12-16 06:19:08,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,704 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 105 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 430 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 [2023-12-16 06:19:08,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 430 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2023-12-16 06:19:08,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 11519. [2023-12-16 06:19:08,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11519 states, 11518 states have (on average 1.3438096891821496) internal successors, (15478), 11518 states have internal predecessors, (15478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11519 states to 11519 states and 15478 transitions. [2023-12-16 06:19:08,831 INFO L78 Accepts]: Start accepts. Automaton has 11519 states and 15478 transitions. Word has length 72 [2023-12-16 06:19:08,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:08,832 INFO L495 AbstractCegarLoop]: Abstraction has 11519 states and 15478 transitions. [2023-12-16 06:19:08,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2023-12-16 06:19:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 11519 states and 15478 transitions. [2023-12-16 06:19:08,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 06:19:08,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:08,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:08,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 06:19:08,834 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:08,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:08,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1262986629, now seen corresponding path program 1 times [2023-12-16 06:19:08,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:08,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591936860] [2023-12-16 06:19:08,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:08,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:08,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:08,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:08,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591936860] [2023-12-16 06:19:08,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591936860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:08,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:08,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:08,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552398928] [2023-12-16 06:19:08,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:08,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:08,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:08,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,889 INFO L87 Difference]: Start difference. First operand 11519 states and 15478 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:08,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:08,957 INFO L93 Difference]: Finished difference Result 32075 states and 43116 transitions. [2023-12-16 06:19:08,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:08,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2023-12-16 06:19:08,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:08,980 INFO L225 Difference]: With dead ends: 32075 [2023-12-16 06:19:08,980 INFO L226 Difference]: Without dead ends: 21177 [2023-12-16 06:19:08,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:08,992 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 95 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 420 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 [2023-12-16 06:19:08,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 420 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21177 states. [2023-12-16 06:19:09,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21177 to 19367. [2023-12-16 06:19:09,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19367 states, 19366 states have (on average 1.3322317463595994) internal successors, (25800), 19366 states have internal predecessors, (25800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19367 states to 19367 states and 25800 transitions. [2023-12-16 06:19:09,189 INFO L78 Accepts]: Start accepts. Automaton has 19367 states and 25800 transitions. Word has length 73 [2023-12-16 06:19:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:09,190 INFO L495 AbstractCegarLoop]: Abstraction has 19367 states and 25800 transitions. [2023-12-16 06:19:09,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 19367 states and 25800 transitions. [2023-12-16 06:19:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 06:19:09,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:09,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:09,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-16 06:19:09,192 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:09,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:09,192 INFO L85 PathProgramCache]: Analyzing trace with hash -127158118, now seen corresponding path program 1 times [2023-12-16 06:19:09,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:09,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487681764] [2023-12-16 06:19:09,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:09,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:09,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:09,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487681764] [2023-12-16 06:19:09,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487681764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:09,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:09,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:19:09,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122287298] [2023-12-16 06:19:09,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:09,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:19:09,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:09,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:19:09,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:19:09,304 INFO L87 Difference]: Start difference. First operand 19367 states and 25800 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:09,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:09,417 INFO L93 Difference]: Finished difference Result 41413 states and 54326 transitions. [2023-12-16 06:19:09,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:19:09,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2023-12-16 06:19:09,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:09,468 INFO L225 Difference]: With dead ends: 41413 [2023-12-16 06:19:09,468 INFO L226 Difference]: Without dead ends: 41411 [2023-12-16 06:19:09,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:19:09,483 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 334 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:09,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 1007 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:09,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41411 states. [2023-12-16 06:19:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41411 to 21335. [2023-12-16 06:19:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21335 states, 21334 states have (on average 1.3015843254898285) internal successors, (27768), 21334 states have internal predecessors, (27768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21335 states to 21335 states and 27768 transitions. [2023-12-16 06:19:09,845 INFO L78 Accepts]: Start accepts. Automaton has 21335 states and 27768 transitions. Word has length 76 [2023-12-16 06:19:09,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:09,846 INFO L495 AbstractCegarLoop]: Abstraction has 21335 states and 27768 transitions. [2023-12-16 06:19:09,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 21335 states and 27768 transitions. [2023-12-16 06:19:09,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:19:09,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:09,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:09,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-16 06:19:09,848 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:09,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1368110880, now seen corresponding path program 1 times [2023-12-16 06:19:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233783633] [2023-12-16 06:19:09,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:09,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:09,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:09,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:09,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233783633] [2023-12-16 06:19:09,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233783633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:19:09,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:19:09,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:19:09,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859233773] [2023-12-16 06:19:09,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:19:09,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:19:09,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:09,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:19:09,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:09,879 INFO L87 Difference]: Start difference. First operand 21335 states and 27768 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:09,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:09,990 INFO L93 Difference]: Finished difference Result 52539 states and 68058 transitions. [2023-12-16 06:19:09,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:19:09,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2023-12-16 06:19:09,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:10,032 INFO L225 Difference]: With dead ends: 52539 [2023-12-16 06:19:10,032 INFO L226 Difference]: Without dead ends: 31825 [2023-12-16 06:19:10,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:19:10,053 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 135 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:10,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 345 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:19:10,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31825 states. [2023-12-16 06:19:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31825 to 31823. [2023-12-16 06:19:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31823 states, 31822 states have (on average 1.2779837848029665) internal successors, (40668), 31822 states have internal predecessors, (40668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31823 states to 31823 states and 40668 transitions. [2023-12-16 06:19:10,397 INFO L78 Accepts]: Start accepts. Automaton has 31823 states and 40668 transitions. Word has length 77 [2023-12-16 06:19:10,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:10,397 INFO L495 AbstractCegarLoop]: Abstraction has 31823 states and 40668 transitions. [2023-12-16 06:19:10,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 31823 states and 40668 transitions. [2023-12-16 06:19:10,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 06:19:10,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:10,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:10,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-16 06:19:10,404 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:10,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:10,404 INFO L85 PathProgramCache]: Analyzing trace with hash 989291744, now seen corresponding path program 1 times [2023-12-16 06:19:10,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:10,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303214993] [2023-12-16 06:19:10,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:10,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:10,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:10,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:10,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303214993] [2023-12-16 06:19:10,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303214993] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:19:10,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791669982] [2023-12-16 06:19:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:10,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:19:10,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:19:10,597 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 06:19:10,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 06:19:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:10,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 06:19:10,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:19:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:11,611 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:19:12,418 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:12,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791669982] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:19:12,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:19:12,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 14] total 32 [2023-12-16 06:19:12,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315009480] [2023-12-16 06:19:12,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:19:12,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-16 06:19:12,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:12,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-16 06:19:12,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=924, Unknown=0, NotChecked=0, Total=1056 [2023-12-16 06:19:12,420 INFO L87 Difference]: Start difference. First operand 31823 states and 40668 transitions. Second operand has 33 states, 33 states have (on average 7.787878787878788) internal successors, (257), 32 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:19:37,246 INFO L93 Difference]: Finished difference Result 391969 states and 488681 transitions. [2023-12-16 06:19:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 326 states. [2023-12-16 06:19:37,247 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 7.787878787878788) internal successors, (257), 32 states have internal predecessors, (257), 0 states have call successors, (0), 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 96 [2023-12-16 06:19:37,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:19:37,935 INFO L225 Difference]: With dead ends: 391969 [2023-12-16 06:19:37,936 INFO L226 Difference]: Without dead ends: 375359 [2023-12-16 06:19:38,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54731 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=17617, Invalid=109475, Unknown=0, NotChecked=0, Total=127092 [2023-12-16 06:19:38,051 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 9748 mSDsluCounter, 11784 mSDsCounter, 0 mSdLazyCounter, 10960 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9748 SdHoareTripleChecker+Valid, 12194 SdHoareTripleChecker+Invalid, 11067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 10960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:38,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9748 Valid, 12194 Invalid, 11067 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [107 Valid, 10960 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-12-16 06:19:38,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375359 states. [2023-12-16 06:19:40,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375359 to 32253. [2023-12-16 06:19:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32253 states, 32252 states have (on average 1.2774091529207492) internal successors, (41199), 32252 states have internal predecessors, (41199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32253 states to 32253 states and 41199 transitions. [2023-12-16 06:19:40,092 INFO L78 Accepts]: Start accepts. Automaton has 32253 states and 41199 transitions. Word has length 96 [2023-12-16 06:19:40,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:19:40,093 INFO L495 AbstractCegarLoop]: Abstraction has 32253 states and 41199 transitions. [2023-12-16 06:19:40,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 7.787878787878788) internal successors, (257), 32 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:19:40,093 INFO L276 IsEmpty]: Start isEmpty. Operand 32253 states and 41199 transitions. [2023-12-16 06:19:40,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-16 06:19:40,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:19:40,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:40,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 06:19:40,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:19:40,309 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:19:40,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:19:40,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1510327294, now seen corresponding path program 1 times [2023-12-16 06:19:40,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:19:40,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032302421] [2023-12-16 06:19:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:19:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:40,426 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:40,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:19:40,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032302421] [2023-12-16 06:19:40,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032302421] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:19:40,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983587102] [2023-12-16 06:19:40,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:19:40,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:19:40,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:19:40,428 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) [2023-12-16 06:19:40,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 06:19:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:19:40,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-16 06:19:40,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:19:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:41,221 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:19:41,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:19:41,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983587102] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:19:41,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:19:41,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 14] total 29 [2023-12-16 06:19:41,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756586585] [2023-12-16 06:19:41,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:19:41,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-12-16 06:19:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:19:41,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-12-16 06:19:41,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2023-12-16 06:19:41,925 INFO L87 Difference]: Start difference. First operand 32253 states and 41199 transitions. Second operand has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 29 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 06:19:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2023-12-16 06:19:46,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3244 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1939, Invalid=8773, Unknown=0, NotChecked=0, Total=10712 [2023-12-16 06:19:46,231 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 4768 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 3077 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4768 SdHoareTripleChecker+Valid, 2990 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:19:46,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4768 Valid, 2990 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3077 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 06:19:46,232 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:19:46,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 06:19:46,243 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:19:46,243 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:19:46,433 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,SelfDestructingSolverStorable31 [2023-12-16 06:19:46,433 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (32253states) and FLOYD_HOARE automaton (currently 77 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 104 known predicates. [2023-12-16 06:19:46,437 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:19:46,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:19:46,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:19:46 BoogieIcfgContainer [2023-12-16 06:19:46,440 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:19:46,440 INFO L158 Benchmark]: Toolchain (without parser) took 58135.77ms. Allocated memory was 199.2MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 152.6MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 614.4MB. Max. memory is 8.0GB. [2023-12-16 06:19:46,440 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 199.2MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:19:46,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 423.09ms. Allocated memory is still 199.2MB. Free memory was 152.6MB in the beginning and 131.7MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 06:19:46,441 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.03ms. Allocated memory is still 199.2MB. Free memory was 131.7MB in the beginning and 128.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 06:19:46,441 INFO L158 Benchmark]: Boogie Preprocessor took 86.35ms. Allocated memory is still 199.2MB. Free memory was 127.9MB in the beginning and 124.4MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 06:19:46,441 INFO L158 Benchmark]: RCFGBuilder took 750.94ms. Allocated memory is still 199.2MB. Free memory was 124.4MB in the beginning and 138.3MB in the end (delta: -13.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 06:19:46,441 INFO L158 Benchmark]: TraceAbstraction took 56805.12ms. Allocated memory was 199.2MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 137.8MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 598.7MB. Max. memory is 8.0GB. [2023-12-16 06:19:46,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 199.2MB. Free memory is still 154.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 423.09ms. Allocated memory is still 199.2MB. Free memory was 152.6MB in the beginning and 131.7MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.03ms. Allocated memory is still 199.2MB. Free memory was 131.7MB in the beginning and 128.3MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 86.35ms. Allocated memory is still 199.2MB. Free memory was 127.9MB in the beginning and 124.4MB in the end (delta: 3.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 750.94ms. Allocated memory is still 199.2MB. Free memory was 124.4MB in the beginning and 138.3MB in the end (delta: -13.9MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 56805.12ms. Allocated memory was 199.2MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 137.8MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 598.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 397]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 397). Cancelled while NwaCegarLoop was constructing difference of abstraction (32253states) and FLOYD_HOARE automaton (currently 77 states, 29 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 104 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 160 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.8s, OverallIterations: 32, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 42.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42127 SdHoareTripleChecker+Valid, 13.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42127 mSDsluCounter, 49327 SdHoareTripleChecker+Invalid, 11.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40179 mSDsCounter, 387 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25020 IncrementalHoareTripleChecker+Invalid, 25407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 387 mSolverCounterUnsat, 9148 mSDtfsCounter, 25020 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1121 GetRequests, 384 SyntacticMatches, 2 SemanticMatches, 734 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59111 ImplicationChecksByTransitivity, 24.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32253occurred in iteration=31, InterpolantAutomatonStates: 583, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 31 MinimizatonAttempts, 512449 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 2218 NumberOfCodeBlocks, 2218 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 2374 ConstructedInterpolants, 0 QuantifiedInterpolants, 17599 SizeOfPredicates, 24 NumberOfNonLiveVariables, 838 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 36 InterpolantComputations, 30 PerfectInterpolantSequences, 39/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown