/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:10:21,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:10:21,465 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 19:10:21,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:10:21,469 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:10:21,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:10:21,482 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:10:21,483 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:10:21,483 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:10:21,483 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:10:21,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:10:21,484 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:10:21,484 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:10:21,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:10:21,484 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:10:21,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:10:21,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:10:21,485 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:10:21,485 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:10:21,485 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:10:21,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:10:21,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:10:21,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:10:21,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:10:21,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:10:21,487 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:10:21,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:10:21,487 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:10:21,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:10:21,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:10:21,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:10:21,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:10:21,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:10:21,488 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:10:21,489 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:10:21,489 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:10:21,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:10:21,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:10:21,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:10:21,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:10:21,665 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:10:21,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37.c [2023-12-15 19:10:22,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:10:22,921 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:10:22,921 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37.c [2023-12-15 19:10:22,943 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25aaed4c0/96dfbbe67ddb4146abda820dd340f7b9/FLAGc9afe99e4 [2023-12-15 19:10:22,959 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25aaed4c0/96dfbbe67ddb4146abda820dd340f7b9 [2023-12-15 19:10:22,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:10:22,961 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:10:22,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:10:22,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:10:22,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:10:22,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:10:22" (1/1) ... [2023-12-15 19:10:22,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2933ba19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:22, skipping insertion in model container [2023-12-15 19:10:22,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:10:22" (1/1) ... [2023-12-15 19:10:23,038 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:10:23,200 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37.c[2848,2861] [2023-12-15 19:10:23,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:10:23,599 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:10:23,616 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37.c[2848,2861] [2023-12-15 19:10:23,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:10:23,837 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:10:23,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23 WrapperNode [2023-12-15 19:10:23,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:10:23,839 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:10:23,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:10:23,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:10:23,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:23,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,015 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2023-12-15 19:10:24,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:10:24,016 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:10:24,016 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:10:24,016 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:10:24,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,057 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,205 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]. [2023-12-15 19:10:24,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:10:24,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:10:24,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:10:24,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:10:24,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (1/1) ... [2023-12-15 19:10:24,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:10:24,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:10:24,448 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) [2023-12-15 19:10:24,471 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 [2023-12-15 19:10:24,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:10:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:10:24,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:10:24,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:10:24,524 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:10:24,526 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:10:26,816 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:10:26,858 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:10:26,859 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:10:26,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:10:26 BoogieIcfgContainer [2023-12-15 19:10:26,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:10:26,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:10:26,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:10:26,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:10:26,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:10:22" (1/3) ... [2023-12-15 19:10:26,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f2717d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:10:26, skipping insertion in model container [2023-12-15 19:10:26,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:10:23" (2/3) ... [2023-12-15 19:10:26,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19f2717d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:10:26, skipping insertion in model container [2023-12-15 19:10:26,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:10:26" (3/3) ... [2023-12-15 19:10:26,865 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label37.c [2023-12-15 19:10:26,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:10:26,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:10:26,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:10:26,935 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;@42dd413e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:10:26,935 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:10:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 19:10:26,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:26,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:26,947 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:26,952 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:26,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1716745930, now seen corresponding path program 1 times [2023-12-15 19:10:26,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:26,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653900838] [2023-12-15 19:10:26,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:26,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:27,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653900838] [2023-12-15 19:10:27,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653900838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:27,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:27,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:27,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112943241] [2023-12-15 19:10:27,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:27,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 19:10:27,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:27,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 19:10:27,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:10:27,099 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:27,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:27,176 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-15 19:10:27,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 19:10:27,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-12-15 19:10:27,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:27,195 INFO L225 Difference]: With dead ends: 1055 [2023-12-15 19:10:27,195 INFO L226 Difference]: Without dead ends: 526 [2023-12-15 19:10:27,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:10:27,204 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:27,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 19:10:27,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-15 19:10:27,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-15 19:10:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:27,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-15 19:10:27,260 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 17 [2023-12-15 19:10:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:27,261 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-15 19:10:27,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-15 19:10:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 19:10:27,261 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:27,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:27,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 19:10:27,262 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:27,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:27,262 INFO L85 PathProgramCache]: Analyzing trace with hash 565828866, now seen corresponding path program 1 times [2023-12-15 19:10:27,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:27,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29848933] [2023-12-15 19:10:27,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:27,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:27,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:27,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29848933] [2023-12-15 19:10:27,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29848933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:27,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:27,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:27,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840849785] [2023-12-15 19:10:27,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:27,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:27,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:27,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:27,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:27,340 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:29,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:29,630 INFO L93 Difference]: Finished difference Result 1522 states and 2728 transitions. [2023-12-15 19:10:29,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:29,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 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 17 [2023-12-15 19:10:29,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:29,634 INFO L225 Difference]: With dead ends: 1522 [2023-12-15 19:10:29,634 INFO L226 Difference]: Without dead ends: 997 [2023-12-15 19:10:29,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:29,636 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 493 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:29,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 239 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-15 19:10:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2023-12-15 19:10:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 981. [2023-12-15 19:10:29,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 980 states have (on average 1.7081632653061225) internal successors, (1674), 980 states have internal predecessors, (1674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:29,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1674 transitions. [2023-12-15 19:10:29,654 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1674 transitions. Word has length 17 [2023-12-15 19:10:29,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:29,655 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1674 transitions. [2023-12-15 19:10:29,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:29,655 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1674 transitions. [2023-12-15 19:10:29,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-15 19:10:29,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:29,657 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:29,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 19:10:29,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:29,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:29,658 INFO L85 PathProgramCache]: Analyzing trace with hash -977590033, now seen corresponding path program 1 times [2023-12-15 19:10:29,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:29,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966948437] [2023-12-15 19:10:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:29,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:29,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:29,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966948437] [2023-12-15 19:10:29,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966948437] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:29,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:29,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:29,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792213881] [2023-12-15 19:10:29,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:29,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:29,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:29,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:29,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:29,827 INFO L87 Difference]: Start difference. First operand 981 states and 1674 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:31,719 INFO L93 Difference]: Finished difference Result 2840 states and 4880 transitions. [2023-12-15 19:10:31,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:31,719 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 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 82 [2023-12-15 19:10:31,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:31,725 INFO L225 Difference]: With dead ends: 2840 [2023-12-15 19:10:31,725 INFO L226 Difference]: Without dead ends: 1860 [2023-12-15 19:10:31,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:31,726 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:31,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 494 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 19:10:31,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2023-12-15 19:10:31,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1856. [2023-12-15 19:10:31,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 1855 states have (on average 1.4549865229110512) internal successors, (2699), 1855 states have internal predecessors, (2699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:31,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 2699 transitions. [2023-12-15 19:10:31,762 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 2699 transitions. Word has length 82 [2023-12-15 19:10:31,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:31,766 INFO L495 AbstractCegarLoop]: Abstraction has 1856 states and 2699 transitions. [2023-12-15 19:10:31,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:31,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 2699 transitions. [2023-12-15 19:10:31,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-12-15 19:10:31,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:31,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:31,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 19:10:31,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:31,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:31,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1891012956, now seen corresponding path program 1 times [2023-12-15 19:10:31,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:31,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991977431] [2023-12-15 19:10:31,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:31,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:31,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:32,051 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:32,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:32,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991977431] [2023-12-15 19:10:32,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991977431] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:32,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:32,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:32,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307293015] [2023-12-15 19:10:32,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:32,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:32,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:32,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:32,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:32,054 INFO L87 Difference]: Start difference. First operand 1856 states and 2699 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:34,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:34,143 INFO L93 Difference]: Finished difference Result 4590 states and 6639 transitions. [2023-12-15 19:10:34,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:34,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2023-12-15 19:10:34,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:34,153 INFO L225 Difference]: With dead ends: 4590 [2023-12-15 19:10:34,153 INFO L226 Difference]: Without dead ends: 2735 [2023-12-15 19:10:34,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:34,156 INFO L413 NwaCegarLoop]: 473 mSDtfsCounter, 352 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:34,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 535 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 19:10:34,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2735 states. [2023-12-15 19:10:34,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2735 to 2715. [2023-12-15 19:10:34,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2714 states have (on average 1.3909358879882092) internal successors, (3775), 2714 states have internal predecessors, (3775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:34,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 3775 transitions. [2023-12-15 19:10:34,191 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 3775 transitions. Word has length 122 [2023-12-15 19:10:34,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:34,191 INFO L495 AbstractCegarLoop]: Abstraction has 2715 states and 3775 transitions. [2023-12-15 19:10:34,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:34,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 3775 transitions. [2023-12-15 19:10:34,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-15 19:10:34,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:34,192 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:34,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 19:10:34,193 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:34,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:34,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1575758027, now seen corresponding path program 1 times [2023-12-15 19:10:34,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:34,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64974959] [2023-12-15 19:10:34,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:34,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:34,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:34,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64974959] [2023-12-15 19:10:34,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64974959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:34,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:34,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:10:34,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031345907] [2023-12-15 19:10:34,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:34,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:34,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:34,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:34,321 INFO L87 Difference]: Start difference. First operand 2715 states and 3775 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:36,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:36,024 INFO L93 Difference]: Finished difference Result 6708 states and 9428 transitions. [2023-12-15 19:10:36,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:36,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2023-12-15 19:10:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:36,038 INFO L225 Difference]: With dead ends: 6708 [2023-12-15 19:10:36,038 INFO L226 Difference]: Without dead ends: 3994 [2023-12-15 19:10:36,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:36,042 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 347 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:36,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 19:10:36,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3994 states. [2023-12-15 19:10:36,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3994 to 3141. [2023-12-15 19:10:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 3140 states have (on average 1.2745222929936306) internal successors, (4002), 3140 states have internal predecessors, (4002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:36,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 4002 transitions. [2023-12-15 19:10:36,080 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 4002 transitions. Word has length 128 [2023-12-15 19:10:36,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:36,081 INFO L495 AbstractCegarLoop]: Abstraction has 3141 states and 4002 transitions. [2023-12-15 19:10:36,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:36,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 4002 transitions. [2023-12-15 19:10:36,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-15 19:10:36,082 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:36,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:36,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 19:10:36,082 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:36,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:36,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1015794415, now seen corresponding path program 1 times [2023-12-15 19:10:36,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:36,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284169213] [2023-12-15 19:10:36,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:36,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:36,318 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:10:36,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:36,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284169213] [2023-12-15 19:10:36,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284169213] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:36,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:36,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 19:10:36,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314872888] [2023-12-15 19:10:36,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:36,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 19:10:36,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:36,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 19:10:36,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:10:36,321 INFO L87 Difference]: Start difference. First operand 3141 states and 4002 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:38,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:38,410 INFO L93 Difference]: Finished difference Result 8006 states and 10509 transitions. [2023-12-15 19:10:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:10:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 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 165 [2023-12-15 19:10:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:38,426 INFO L225 Difference]: With dead ends: 8006 [2023-12-15 19:10:38,426 INFO L226 Difference]: Without dead ends: 4866 [2023-12-15 19:10:38,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:10:38,430 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 1655 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 978 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1655 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 978 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:38,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1655 Valid, 839 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [978 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-15 19:10:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4866 states. [2023-12-15 19:10:38,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4866 to 4851. [2023-12-15 19:10:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4851 states, 4850 states have (on average 1.26659793814433) internal successors, (6143), 4850 states have internal predecessors, (6143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:38,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 6143 transitions. [2023-12-15 19:10:38,492 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 6143 transitions. Word has length 165 [2023-12-15 19:10:38,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:38,492 INFO L495 AbstractCegarLoop]: Abstraction has 4851 states and 6143 transitions. [2023-12-15 19:10:38,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:38,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 6143 transitions. [2023-12-15 19:10:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-15 19:10:38,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:38,495 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:38,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 19:10:38,496 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:38,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:38,496 INFO L85 PathProgramCache]: Analyzing trace with hash -813134304, now seen corresponding path program 1 times [2023-12-15 19:10:38,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:38,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757162675] [2023-12-15 19:10:38,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:38,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:38,576 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-15 19:10:38,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:38,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757162675] [2023-12-15 19:10:38,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757162675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:38,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:38,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:38,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401059971] [2023-12-15 19:10:38,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:38,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:38,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:38,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:38,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:38,578 INFO L87 Difference]: Start difference. First operand 4851 states and 6143 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:40,364 INFO L93 Difference]: Finished difference Result 12248 states and 15824 transitions. [2023-12-15 19:10:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:40,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 171 [2023-12-15 19:10:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:40,382 INFO L225 Difference]: With dead ends: 12248 [2023-12-15 19:10:40,382 INFO L226 Difference]: Without dead ends: 7398 [2023-12-15 19:10:40,389 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 [2023-12-15 19:10:40,391 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 429 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:40,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 543 Invalid, 1696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-15 19:10:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7398 states. [2023-12-15 19:10:40,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7398 to 4825. [2023-12-15 19:10:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4825 states, 4824 states have (on average 1.265339966832504) internal successors, (6104), 4824 states have internal predecessors, (6104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4825 states to 4825 states and 6104 transitions. [2023-12-15 19:10:40,467 INFO L78 Accepts]: Start accepts. Automaton has 4825 states and 6104 transitions. Word has length 171 [2023-12-15 19:10:40,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:40,467 INFO L495 AbstractCegarLoop]: Abstraction has 4825 states and 6104 transitions. [2023-12-15 19:10:40,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:40,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4825 states and 6104 transitions. [2023-12-15 19:10:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-12-15 19:10:40,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:40,469 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:40,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 19:10:40,469 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:40,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:40,469 INFO L85 PathProgramCache]: Analyzing trace with hash 368898020, now seen corresponding path program 1 times [2023-12-15 19:10:40,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:40,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140904509] [2023-12-15 19:10:40,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:40,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-15 19:10:40,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:40,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140904509] [2023-12-15 19:10:40,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140904509] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:40,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:40,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:40,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120737400] [2023-12-15 19:10:40,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:40,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:40,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:40,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:40,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:40,563 INFO L87 Difference]: Start difference. First operand 4825 states and 6104 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:42,427 INFO L93 Difference]: Finished difference Result 13480 states and 17130 transitions. [2023-12-15 19:10:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:42,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 184 [2023-12-15 19:10:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:42,447 INFO L225 Difference]: With dead ends: 13480 [2023-12-15 19:10:42,447 INFO L226 Difference]: Without dead ends: 8656 [2023-12-15 19:10:42,452 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 [2023-12-15 19:10:42,453 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 465 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:42,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 481 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-15 19:10:42,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8656 states. [2023-12-15 19:10:42,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8656 to 7377. [2023-12-15 19:10:42,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7377 states, 7376 states have (on average 1.247966377440347) internal successors, (9205), 7376 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) [2023-12-15 19:10:42,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7377 states to 7377 states and 9205 transitions. [2023-12-15 19:10:42,558 INFO L78 Accepts]: Start accepts. Automaton has 7377 states and 9205 transitions. Word has length 184 [2023-12-15 19:10:42,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:42,558 INFO L495 AbstractCegarLoop]: Abstraction has 7377 states and 9205 transitions. [2023-12-15 19:10:42,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:42,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7377 states and 9205 transitions. [2023-12-15 19:10:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-15 19:10:42,561 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:42,561 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 19:10:42,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 19:10:42,561 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:42,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash 200698736, now seen corresponding path program 1 times [2023-12-15 19:10:42,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:42,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538937223] [2023-12-15 19:10:42,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:42,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-15 19:10:42,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:42,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538937223] [2023-12-15 19:10:42,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538937223] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:42,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:42,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:42,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632749658] [2023-12-15 19:10:42,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:42,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:42,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:42,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:42,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:42,723 INFO L87 Difference]: Start difference. First operand 7377 states and 9205 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:44,668 INFO L93 Difference]: Finished difference Result 18606 states and 23434 transitions. [2023-12-15 19:10:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 233 [2023-12-15 19:10:44,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:44,679 INFO L225 Difference]: With dead ends: 18606 [2023-12-15 19:10:44,679 INFO L226 Difference]: Without dead ends: 10378 [2023-12-15 19:10:44,683 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 [2023-12-15 19:10:44,683 INFO L413 NwaCegarLoop]: 943 mSDtfsCounter, 482 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:44,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 1017 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-15 19:10:44,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10378 states. [2023-12-15 19:10:44,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10378 to 10370. [2023-12-15 19:10:44,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10370 states, 10369 states have (on average 1.2060950911370432) internal successors, (12506), 10369 states have internal predecessors, (12506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:44,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10370 states to 10370 states and 12506 transitions. [2023-12-15 19:10:44,774 INFO L78 Accepts]: Start accepts. Automaton has 10370 states and 12506 transitions. Word has length 233 [2023-12-15 19:10:44,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:44,774 INFO L495 AbstractCegarLoop]: Abstraction has 10370 states and 12506 transitions. [2023-12-15 19:10:44,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 10370 states and 12506 transitions. [2023-12-15 19:10:44,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-12-15 19:10:44,776 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:44,777 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:44,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 19:10:44,777 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:44,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:44,777 INFO L85 PathProgramCache]: Analyzing trace with hash 712084524, now seen corresponding path program 1 times [2023-12-15 19:10:44,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:44,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111474233] [2023-12-15 19:10:44,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:44,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:45,037 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 170 proven. 70 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:10:45,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:45,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111474233] [2023-12-15 19:10:45,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111474233] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:10:45,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245638816] [2023-12-15 19:10:45,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:45,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:10:45,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:10:45,041 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) [2023-12-15 19:10:45,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 19:10:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:45,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 19:10:45,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:10:45,336 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 170 proven. 70 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:10:45,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 19:10:45,565 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:10:45,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245638816] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 19:10:45,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-15 19:10:45,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-12-15 19:10:45,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131849582] [2023-12-15 19:10:45,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:45,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:10:45,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:45,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:10:45,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:10:45,567 INFO L87 Difference]: Start difference. First operand 10370 states and 12506 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:48,634 INFO L93 Difference]: Finished difference Result 32690 states and 39750 transitions. [2023-12-15 19:10:48,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:10:48,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 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 241 [2023-12-15 19:10:48,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:48,662 INFO L225 Difference]: With dead ends: 32690 [2023-12-15 19:10:48,662 INFO L226 Difference]: Without dead ends: 21460 [2023-12-15 19:10:48,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:10:48,673 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 903 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 2320 mSolverCounterSat, 852 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 3172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 852 IncrementalHoareTripleChecker+Valid, 2320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:48,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 155 Invalid, 3172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [852 Valid, 2320 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 19:10:48,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21460 states. [2023-12-15 19:10:48,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21460 to 21458. [2023-12-15 19:10:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21458 states, 21457 states have (on average 1.1587826816423545) internal successors, (24864), 21457 states have internal predecessors, (24864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:48,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21458 states to 21458 states and 24864 transitions. [2023-12-15 19:10:48,885 INFO L78 Accepts]: Start accepts. Automaton has 21458 states and 24864 transitions. Word has length 241 [2023-12-15 19:10:48,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:48,885 INFO L495 AbstractCegarLoop]: Abstraction has 21458 states and 24864 transitions. [2023-12-15 19:10:48,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:48,886 INFO L276 IsEmpty]: Start isEmpty. Operand 21458 states and 24864 transitions. [2023-12-15 19:10:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-12-15 19:10:48,888 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:48,888 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:48,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 19:10:49,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 19:10:49,093 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:49,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:49,094 INFO L85 PathProgramCache]: Analyzing trace with hash -306260848, now seen corresponding path program 1 times [2023-12-15 19:10:49,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:49,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944002697] [2023-12-15 19:10:49,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:49,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:49,211 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-15 19:10:49,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:49,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944002697] [2023-12-15 19:10:49,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944002697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:49,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:49,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887943060] [2023-12-15 19:10:49,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:49,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:49,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:49,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:49,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:49,213 INFO L87 Difference]: Start difference. First operand 21458 states and 24864 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:50,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:50,824 INFO L93 Difference]: Finished difference Result 47591 states and 55278 transitions. [2023-12-15 19:10:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:50,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 254 [2023-12-15 19:10:50,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:50,855 INFO L225 Difference]: With dead ends: 47591 [2023-12-15 19:10:50,855 INFO L226 Difference]: Without dead ends: 25707 [2023-12-15 19:10:50,874 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 [2023-12-15 19:10:50,875 INFO L413 NwaCegarLoop]: 791 mSDtfsCounter, 371 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:50,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 857 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 19:10:50,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25707 states. [2023-12-15 19:10:51,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25707 to 25707. [2023-12-15 19:10:51,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25707 states, 25706 states have (on average 1.1349101377110402) internal successors, (29174), 25706 states have internal predecessors, (29174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:51,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25707 states to 25707 states and 29174 transitions. [2023-12-15 19:10:51,135 INFO L78 Accepts]: Start accepts. Automaton has 25707 states and 29174 transitions. Word has length 254 [2023-12-15 19:10:51,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:51,135 INFO L495 AbstractCegarLoop]: Abstraction has 25707 states and 29174 transitions. [2023-12-15 19:10:51,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:51,135 INFO L276 IsEmpty]: Start isEmpty. Operand 25707 states and 29174 transitions. [2023-12-15 19:10:51,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-15 19:10:51,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:51,140 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:51,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 19:10:51,140 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:51,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:51,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1888179498, now seen corresponding path program 1 times [2023-12-15 19:10:51,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:51,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419702898] [2023-12-15 19:10:51,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:51,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 311 proven. 73 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-15 19:10:51,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:51,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419702898] [2023-12-15 19:10:51,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419702898] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:10:51,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531411717] [2023-12-15 19:10:51,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:51,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:10:51,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:10:51,393 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) [2023-12-15 19:10:51,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 19:10:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:51,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 19:10:51,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:10:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 311 proven. 73 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-15 19:10:51,729 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 19:10:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 384 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-12-15 19:10:51,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531411717] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 19:10:51,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-15 19:10:51,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-12-15 19:10:51,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866435196] [2023-12-15 19:10:51,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:51,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:10:51,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:51,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:10:51,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:10:51,912 INFO L87 Difference]: Start difference. First operand 25707 states and 29174 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:54,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:54,582 INFO L93 Difference]: Finished difference Result 62498 states and 71198 transitions. [2023-12-15 19:10:54,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:10:54,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 315 [2023-12-15 19:10:54,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:54,620 INFO L225 Difference]: With dead ends: 62498 [2023-12-15 19:10:54,621 INFO L226 Difference]: Without dead ends: 36365 [2023-12-15 19:10:54,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 631 GetRequests, 627 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:10:54,640 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 879 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 576 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 576 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:54,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 177 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [576 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-15 19:10:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36365 states. [2023-12-15 19:10:54,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36365 to 34237. [2023-12-15 19:10:55,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34237 states, 34236 states have (on average 1.1454609183315807) internal successors, (39216), 34236 states have internal predecessors, (39216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:55,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34237 states to 34237 states and 39216 transitions. [2023-12-15 19:10:55,093 INFO L78 Accepts]: Start accepts. Automaton has 34237 states and 39216 transitions. Word has length 315 [2023-12-15 19:10:55,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:55,093 INFO L495 AbstractCegarLoop]: Abstraction has 34237 states and 39216 transitions. [2023-12-15 19:10:55,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:55,093 INFO L276 IsEmpty]: Start isEmpty. Operand 34237 states and 39216 transitions. [2023-12-15 19:10:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-12-15 19:10:55,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:55,102 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:55,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 19:10:55,306 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,SelfDestructingSolverStorable11 [2023-12-15 19:10:55,307 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:55,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1239887955, now seen corresponding path program 1 times [2023-12-15 19:10:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:55,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620063] [2023-12-15 19:10:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:55,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2023-12-15 19:10:55,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:55,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620063] [2023-12-15 19:10:55,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:55,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:55,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:55,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847555122] [2023-12-15 19:10:55,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:55,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:55,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:55,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:55,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:55,508 INFO L87 Difference]: Start difference. First operand 34237 states and 39216 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:57,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:57,204 INFO L93 Difference]: Finished difference Result 80387 states and 92353 transitions. [2023-12-15 19:10:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:57,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 438 [2023-12-15 19:10:57,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:57,250 INFO L225 Difference]: With dead ends: 80387 [2023-12-15 19:10:57,250 INFO L226 Difference]: Without dead ends: 45724 [2023-12-15 19:10:57,271 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 [2023-12-15 19:10:57,272 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 485 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:57,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 253 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 19:10:57,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45724 states. [2023-12-15 19:10:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45724 to 33770. [2023-12-15 19:10:57,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33770 states, 33769 states have (on average 1.1432971068139417) internal successors, (38608), 33769 states have internal predecessors, (38608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33770 states to 33770 states and 38608 transitions. [2023-12-15 19:10:57,798 INFO L78 Accepts]: Start accepts. Automaton has 33770 states and 38608 transitions. Word has length 438 [2023-12-15 19:10:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:10:57,799 INFO L495 AbstractCegarLoop]: Abstraction has 33770 states and 38608 transitions. [2023-12-15 19:10:57,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:57,799 INFO L276 IsEmpty]: Start isEmpty. Operand 33770 states and 38608 transitions. [2023-12-15 19:10:57,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-12-15 19:10:57,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:10:57,807 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:10:57,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 19:10:57,807 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:10:57,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:10:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1552114196, now seen corresponding path program 1 times [2023-12-15 19:10:57,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:10:57,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922388915] [2023-12-15 19:10:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:10:57,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:10:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:10:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:10:58,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:10:58,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922388915] [2023-12-15 19:10:58,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922388915] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:10:58,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:10:58,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:10:58,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763331863] [2023-12-15 19:10:58,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:10:58,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:10:58,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:10:58,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:10:58,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:10:58,101 INFO L87 Difference]: Start difference. First operand 33770 states and 38608 transitions. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:10:59,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:10:59,717 INFO L93 Difference]: Finished difference Result 80765 states and 92382 transitions. [2023-12-15 19:10:59,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:10:59,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 450 [2023-12-15 19:10:59,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:10:59,762 INFO L225 Difference]: With dead ends: 80765 [2023-12-15 19:10:59,762 INFO L226 Difference]: Without dead ends: 43594 [2023-12-15 19:10:59,784 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 [2023-12-15 19:10:59,784 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 372 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1231 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:10:59,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 843 Invalid, 1449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1231 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 19:10:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43594 states. [2023-12-15 19:11:00,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43594 to 38897. [2023-12-15 19:11:00,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38897 states, 38896 states have (on average 1.118264088852324) internal successors, (43496), 38896 states have internal predecessors, (43496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38897 states to 38897 states and 43496 transitions. [2023-12-15 19:11:00,174 INFO L78 Accepts]: Start accepts. Automaton has 38897 states and 43496 transitions. Word has length 450 [2023-12-15 19:11:00,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:11:00,174 INFO L495 AbstractCegarLoop]: Abstraction has 38897 states and 43496 transitions. [2023-12-15 19:11:00,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:00,174 INFO L276 IsEmpty]: Start isEmpty. Operand 38897 states and 43496 transitions. [2023-12-15 19:11:00,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2023-12-15 19:11:00,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:11:00,181 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:11:00,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 19:11:00,182 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:11:00,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:11:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1367876825, now seen corresponding path program 1 times [2023-12-15 19:11:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:11:00,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458960728] [2023-12-15 19:11:00,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:00,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:11:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:00,852 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 300 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:11:00,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:11:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458960728] [2023-12-15 19:11:00,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458960728] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:11:00,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20039088] [2023-12-15 19:11:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:00,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:11:00,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:11:00,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:11:00,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 19:11:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:01,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 19:11:01,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:11:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 218 proven. 82 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:11:01,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 19:11:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 218 proven. 82 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:11:01,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20039088] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 19:11:01,947 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 19:11:01,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2023-12-15 19:11:01,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497800657] [2023-12-15 19:11:01,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 19:11:01,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-15 19:11:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:11:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-15 19:11:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-15 19:11:01,950 INFO L87 Difference]: Start difference. First operand 38897 states and 43496 transitions. Second operand has 9 states, 9 states have (on average 119.55555555555556) internal successors, (1076), 9 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:12,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:11:12,510 INFO L93 Difference]: Finished difference Result 126789 states and 142782 transitions. [2023-12-15 19:11:12,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-15 19:11:12,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 119.55555555555556) internal successors, (1076), 9 states have internal predecessors, (1076), 0 states have call successors, (0), 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 452 [2023-12-15 19:11:12,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:11:12,592 INFO L225 Difference]: With dead ends: 126789 [2023-12-15 19:11:12,593 INFO L226 Difference]: Without dead ends: 85766 [2023-12-15 19:11:12,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 911 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2023-12-15 19:11:12,608 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 6817 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 11497 mSolverCounterSat, 2816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6817 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 14313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2816 IncrementalHoareTripleChecker+Valid, 11497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:12,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6817 Valid, 429 Invalid, 14313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2816 Valid, 11497 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2023-12-15 19:11:12,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85766 states. [2023-12-15 19:11:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85766 to 76352. [2023-12-15 19:11:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76352 states, 76351 states have (on average 1.1200901101491794) internal successors, (85520), 76351 states have internal predecessors, (85520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:13,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76352 states to 76352 states and 85520 transitions. [2023-12-15 19:11:13,549 INFO L78 Accepts]: Start accepts. Automaton has 76352 states and 85520 transitions. Word has length 452 [2023-12-15 19:11:13,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:11:13,549 INFO L495 AbstractCegarLoop]: Abstraction has 76352 states and 85520 transitions. [2023-12-15 19:11:13,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 119.55555555555556) internal successors, (1076), 9 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:13,549 INFO L276 IsEmpty]: Start isEmpty. Operand 76352 states and 85520 transitions. [2023-12-15 19:11:13,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-12-15 19:11:13,555 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:11:13,555 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:11:13,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 19:11:13,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:11:13,760 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:11:13,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:11:13,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1352445994, now seen corresponding path program 1 times [2023-12-15 19:11:13,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:11:13,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013837806] [2023-12-15 19:11:13,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:13,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:11:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:14,209 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2023-12-15 19:11:14,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:11:14,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013837806] [2023-12-15 19:11:14,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013837806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:11:14,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:11:14,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:11:14,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006858578] [2023-12-15 19:11:14,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:11:14,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:11:14,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:11:14,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:11:14,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:11:14,211 INFO L87 Difference]: Start difference. First operand 76352 states and 85520 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:16,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:11:16,045 INFO L93 Difference]: Finished difference Result 168446 states and 188434 transitions. [2023-12-15 19:11:16,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:11:16,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 461 [2023-12-15 19:11:16,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:11:16,276 INFO L225 Difference]: With dead ends: 168446 [2023-12-15 19:11:16,276 INFO L226 Difference]: Without dead ends: 88268 [2023-12-15 19:11:16,351 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 [2023-12-15 19:11:16,351 INFO L413 NwaCegarLoop]: 731 mSDtfsCounter, 447 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:16,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 789 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 19:11:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88268 states. [2023-12-15 19:11:17,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88268 to 76326. [2023-12-15 19:11:17,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76326 states, 76325 states have (on average 1.106858827382902) internal successors, (84481), 76325 states have internal predecessors, (84481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76326 states to 76326 states and 84481 transitions. [2023-12-15 19:11:17,587 INFO L78 Accepts]: Start accepts. Automaton has 76326 states and 84481 transitions. Word has length 461 [2023-12-15 19:11:17,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:11:17,587 INFO L495 AbstractCegarLoop]: Abstraction has 76326 states and 84481 transitions. [2023-12-15 19:11:17,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:11:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 76326 states and 84481 transitions. [2023-12-15 19:11:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2023-12-15 19:11:17,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:11:17,594 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:11:17,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 19:11:17,594 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:11:17,595 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:11:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1009394979, now seen corresponding path program 1 times [2023-12-15 19:11:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:11:17,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837022757] [2023-12-15 19:11:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:17,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:11:17,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 261 proven. 82 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 19:11:18,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:11:18,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837022757] [2023-12-15 19:11:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837022757] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:11:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687385776] [2023-12-15 19:11:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:11:18,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:11:18,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:11:18,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:11:18,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 19:11:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:11:18,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 19:11:18,521 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:11:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-15 19:11:20,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:11:20,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687385776] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:11:20,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:11:20,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 19:11:20,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027084929] [2023-12-15 19:11:20,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:11:20,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:11:20,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:11:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:11:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:11:20,395 INFO L87 Difference]: Start difference. First operand 76326 states and 84481 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 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... [2023-12-15 19:11:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:11:20,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-15 19:11:20,813 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 37 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:11:20,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 15 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 19:11:20,814 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 19:11:20,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 19:11:20,833 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 19:11:20,833 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 [2023-12-15 19:11:21,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-15 19:11:21,022 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (76326states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (791 states constructed, input type IntersectNwa). [2023-12-15 19:11:21,025 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:11:21,027 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 19:11:21,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 07:11:21 BoogieIcfgContainer [2023-12-15 19:11:21,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 19:11:21,028 INFO L158 Benchmark]: Toolchain (without parser) took 58067.03ms. Allocated memory was 331.4MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 279.9MB in the beginning and 1.9GB in the end (delta: -1.6GB). Peak memory consumption was 947.5MB. Max. memory is 8.0GB. [2023-12-15 19:11:21,029 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 19:11:21,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 876.57ms. Allocated memory is still 331.4MB. Free memory was 279.3MB in the beginning and 256.4MB in the end (delta: 22.9MB). Peak memory consumption was 108.9MB. Max. memory is 8.0GB. [2023-12-15 19:11:21,029 INFO L158 Benchmark]: Boogie Procedure Inliner took 176.16ms. Allocated memory is still 331.4MB. Free memory was 256.4MB in the beginning and 193.0MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-15 19:11:21,029 INFO L158 Benchmark]: Boogie Preprocessor took 387.63ms. Allocated memory was 331.4MB in the beginning and 571.5MB in the end (delta: 240.1MB). Free memory was 193.0MB in the beginning and 466.9MB in the end (delta: -274.0MB). Peak memory consumption was 108.8MB. Max. memory is 8.0GB. [2023-12-15 19:11:21,029 INFO L158 Benchmark]: RCFGBuilder took 2454.41ms. Allocated memory is still 571.5MB. Free memory was 466.9MB in the beginning and 361.7MB in the end (delta: 105.2MB). Peak memory consumption was 172.5MB. Max. memory is 8.0GB. [2023-12-15 19:11:21,029 INFO L158 Benchmark]: TraceAbstraction took 54167.13ms. Allocated memory was 571.5MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 361.2MB in the beginning and 1.9GB in the end (delta: -1.5GB). Peak memory consumption was 788.2MB. Max. memory is 8.0GB. [2023-12-15 19:11:21,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 876.57ms. Allocated memory is still 331.4MB. Free memory was 279.3MB in the beginning and 256.4MB in the end (delta: 22.9MB). Peak memory consumption was 108.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 176.16ms. Allocated memory is still 331.4MB. Free memory was 256.4MB in the beginning and 193.0MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 387.63ms. Allocated memory was 331.4MB in the beginning and 571.5MB in the end (delta: 240.1MB). Free memory was 193.0MB in the beginning and 466.9MB in the end (delta: -274.0MB). Peak memory consumption was 108.8MB. Max. memory is 8.0GB. * RCFGBuilder took 2454.41ms. Allocated memory is still 571.5MB. Free memory was 466.9MB in the beginning and 361.7MB in the end (delta: 105.2MB). Peak memory consumption was 172.5MB. Max. memory is 8.0GB. * TraceAbstraction took 54167.13ms. Allocated memory was 571.5MB in the beginning and 2.4GB in the end (delta: 1.8GB). Free memory was 361.2MB in the beginning and 1.9GB in the end (delta: -1.5GB). Peak memory consumption was 788.2MB. 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: 72]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 72). Cancelled while NwaCegarLoop was constructing difference of abstraction (76326states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (791 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.1s, OverallIterations: 17, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 40.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14941 SdHoareTripleChecker+Valid, 36.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14941 mSDsluCounter, 9190 SdHoareTripleChecker+Invalid, 30.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1303 mSDsCounter, 8367 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33100 IncrementalHoareTripleChecker+Invalid, 41467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8367 mSolverCounterUnsat, 7887 mSDtfsCounter, 33100 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2576 GetRequests, 2533 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76352occurred in iteration=15, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 44905 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 5728 NumberOfCodeBlocks, 5728 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 6712 ConstructedInterpolants, 0 QuantifiedInterpolants, 22180 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2036 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 5517/6065 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