/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:33:17,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:33:17,989 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 06:33:17,994 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:33:17,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:33:18,016 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:33:18,017 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:33:18,017 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:33:18,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:33:18,028 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:33:18,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:33:18,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:33:18,029 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:33:18,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:33:18,029 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:33:18,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:33:18,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:33:18,030 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:33:18,030 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:33:18,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:33:18,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:33:18,031 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:33:18,032 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:33:18,032 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:33:18,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:33:18,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:33:18,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:33:18,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:33:18,034 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:33:18,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:33:18,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:33:18,034 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:33:18,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:33:18,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:33:18,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:33:18,256 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:33:18,257 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:33:18,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-12-16 06:33:19,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:33:19,577 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:33:19,577 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-12-16 06:33:19,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e728580b0/41d8b68058d8474fb8d1b50e7a9d5175/FLAG6a3f8a736 [2023-12-16 06:33:19,607 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e728580b0/41d8b68058d8474fb8d1b50e7a9d5175 [2023-12-16 06:33:19,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:33:19,611 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:33:19,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:33:19,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:33:19,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:33:19,616 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:33:19" (1/1) ... [2023-12-16 06:33:19,617 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@473d352 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:19, skipping insertion in model container [2023-12-16 06:33:19,617 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:33:19" (1/1) ... [2023-12-16 06:33:19,688 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:33:20,056 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[34889,34902] [2023-12-16 06:33:20,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:33:20,243 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:33:20,447 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[34889,34902] [2023-12-16 06:33:20,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:33:20,542 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:33:20,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20 WrapperNode [2023-12-16 06:33:20,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:33:20,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:33:20,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:33:20,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:33:20,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,642 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3037 [2023-12-16 06:33:20,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:33:20,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:33:20,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:33:20,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:33:20,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,652 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,669 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,708 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 06:33:20,708 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,708 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:33:20,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:33:20,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:33:20,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:33:20,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (1/1) ... [2023-12-16 06:33:20,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:33:20,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:33:20,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 06:33:20,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 06:33:20,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:33:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:33:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:33:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:33:20,999 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:33:21,001 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:33:22,314 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:33:22,370 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:33:22,371 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-16 06:33:22,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:33:22 BoogieIcfgContainer [2023-12-16 06:33:22,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:33:22,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:33:22,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:33:22,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:33:22,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:33:19" (1/3) ... [2023-12-16 06:33:22,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611cc90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:33:22, skipping insertion in model container [2023-12-16 06:33:22,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:33:20" (2/3) ... [2023-12-16 06:33:22,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611cc90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:33:22, skipping insertion in model container [2023-12-16 06:33:22,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:33:22" (3/3) ... [2023-12-16 06:33:22,377 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2023-12-16 06:33:22,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:33:22,390 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:33:22,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:33:22,454 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;@6c8bc42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:33:22,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:33:22,464 INFO L276 IsEmpty]: Start isEmpty. Operand has 776 states, 774 states have (on average 1.7816537467700257) internal successors, (1379), 775 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:22,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-16 06:33:22,497 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:22,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:22,500 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:22,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1686509073, now seen corresponding path program 1 times [2023-12-16 06:33:22,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:22,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459354885] [2023-12-16 06:33:22,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:22,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:23,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:23,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:23,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459354885] [2023-12-16 06:33:23,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459354885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:23,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:23,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:23,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107586695] [2023-12-16 06:33:23,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:23,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:23,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:23,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:23,237 INFO L87 Difference]: Start difference. First operand has 776 states, 774 states have (on average 1.7816537467700257) internal successors, (1379), 775 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:23,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:23,429 INFO L93 Difference]: Finished difference Result 1467 states and 2586 transitions. [2023-12-16 06:33:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:23,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 307 [2023-12-16 06:33:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:23,447 INFO L225 Difference]: With dead ends: 1467 [2023-12-16 06:33:23,448 INFO L226 Difference]: Without dead ends: 1267 [2023-12-16 06:33:23,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:23,453 INFO L413 NwaCegarLoop]: 1314 mSDtfsCounter, 857 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:23,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 2413 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:23,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2023-12-16 06:33:23,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1265. [2023-12-16 06:33:23,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.5727848101265822) internal successors, (1988), 1264 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:23,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1988 transitions. [2023-12-16 06:33:23,527 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1988 transitions. Word has length 307 [2023-12-16 06:33:23,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:23,528 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 1988 transitions. [2023-12-16 06:33:23,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:23,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1988 transitions. [2023-12-16 06:33:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-16 06:33:23,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:23,532 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:23,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:33:23,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:23,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:23,533 INFO L85 PathProgramCache]: Analyzing trace with hash -5712729, now seen corresponding path program 1 times [2023-12-16 06:33:23,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:23,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773828502] [2023-12-16 06:33:23,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:23,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:23,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:23,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773828502] [2023-12-16 06:33:23,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773828502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:23,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:23,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:23,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672832770] [2023-12-16 06:33:23,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:23,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:23,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:23,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:23,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:23,802 INFO L87 Difference]: Start difference. First operand 1265 states and 1988 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:23,938 INFO L93 Difference]: Finished difference Result 2595 states and 4101 transitions. [2023-12-16 06:33:23,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:23,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 307 [2023-12-16 06:33:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:23,948 INFO L225 Difference]: With dead ends: 2595 [2023-12-16 06:33:23,948 INFO L226 Difference]: Without dead ends: 2231 [2023-12-16 06:33:23,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:23,952 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 707 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2135 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:23,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2135 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:23,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2023-12-16 06:33:23,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 2229. [2023-12-16 06:33:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2229 states, 2228 states have (on average 1.566427289048474) internal successors, (3490), 2228 states have internal predecessors, (3490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:23,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 3490 transitions. [2023-12-16 06:33:23,997 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 3490 transitions. Word has length 307 [2023-12-16 06:33:23,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:23,998 INFO L495 AbstractCegarLoop]: Abstraction has 2229 states and 3490 transitions. [2023-12-16 06:33:23,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 3490 transitions. [2023-12-16 06:33:24,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-16 06:33:24,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:24,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:24,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:33:24,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:24,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:24,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1422622546, now seen corresponding path program 1 times [2023-12-16 06:33:24,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:24,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130039644] [2023-12-16 06:33:24,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:24,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:24,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:24,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130039644] [2023-12-16 06:33:24,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130039644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:24,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:24,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857670930] [2023-12-16 06:33:24,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:24,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:24,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:24,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:24,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:24,251 INFO L87 Difference]: Start difference. First operand 2229 states and 3490 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:24,373 INFO L93 Difference]: Finished difference Result 4725 states and 7444 transitions. [2023-12-16 06:33:24,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:24,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 307 [2023-12-16 06:33:24,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:24,387 INFO L225 Difference]: With dead ends: 4725 [2023-12-16 06:33:24,387 INFO L226 Difference]: Without dead ends: 4087 [2023-12-16 06:33:24,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:24,393 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 691 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:24,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 2107 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4087 states. [2023-12-16 06:33:24,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4087 to 4085. [2023-12-16 06:33:24,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4085 states, 4084 states have (on average 1.559745347698335) internal successors, (6370), 4084 states have internal predecessors, (6370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:24,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4085 states to 4085 states and 6370 transitions. [2023-12-16 06:33:24,477 INFO L78 Accepts]: Start accepts. Automaton has 4085 states and 6370 transitions. Word has length 307 [2023-12-16 06:33:24,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:24,479 INFO L495 AbstractCegarLoop]: Abstraction has 4085 states and 6370 transitions. [2023-12-16 06:33:24,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 4085 states and 6370 transitions. [2023-12-16 06:33:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2023-12-16 06:33:24,485 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:24,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:24,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:33:24,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:24,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1592949731, now seen corresponding path program 1 times [2023-12-16 06:33:24,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:24,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39934038] [2023-12-16 06:33:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:24,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:24,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:25,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:25,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39934038] [2023-12-16 06:33:25,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39934038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:25,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:25,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:25,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535059999] [2023-12-16 06:33:25,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:25,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:33:25,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:25,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:33:25,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:33:25,019 INFO L87 Difference]: Start difference. First operand 4085 states and 6370 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:25,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:25,145 INFO L93 Difference]: Finished difference Result 12082 states and 18817 transitions. [2023-12-16 06:33:25,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:33:25,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 307 [2023-12-16 06:33:25,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:25,171 INFO L225 Difference]: With dead ends: 12082 [2023-12-16 06:33:25,171 INFO L226 Difference]: Without dead ends: 8007 [2023-12-16 06:33:25,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:33:25,185 INFO L413 NwaCegarLoop]: 1848 mSDtfsCounter, 2815 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:25,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2815 Valid, 2994 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:25,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2023-12-16 06:33:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 8005. [2023-12-16 06:33:25,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8005 states, 8004 states have (on average 1.5500999500249875) internal successors, (12407), 8004 states have internal predecessors, (12407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8005 states to 8005 states and 12407 transitions. [2023-12-16 06:33:25,402 INFO L78 Accepts]: Start accepts. Automaton has 8005 states and 12407 transitions. Word has length 307 [2023-12-16 06:33:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:25,402 INFO L495 AbstractCegarLoop]: Abstraction has 8005 states and 12407 transitions. [2023-12-16 06:33:25,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 8005 states and 12407 transitions. [2023-12-16 06:33:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-16 06:33:25,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:25,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:25,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:33:25,413 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:25,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 244545166, now seen corresponding path program 1 times [2023-12-16 06:33:25,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:25,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840577932] [2023-12-16 06:33:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:25,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:25,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840577932] [2023-12-16 06:33:25,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840577932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:25,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:25,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:25,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662332636] [2023-12-16 06:33:25,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:25,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:25,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:25,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:25,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:25,516 INFO L87 Difference]: Start difference. First operand 8005 states and 12407 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:25,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:25,616 INFO L93 Difference]: Finished difference Result 23980 states and 37160 transitions. [2023-12-16 06:33:25,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:25,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 309 [2023-12-16 06:33:25,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:25,668 INFO L225 Difference]: With dead ends: 23980 [2023-12-16 06:33:25,668 INFO L226 Difference]: Without dead ends: 15995 [2023-12-16 06:33:25,683 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 [2023-12-16 06:33:25,684 INFO L413 NwaCegarLoop]: 2416 mSDtfsCounter, 1206 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 3622 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:25,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 3622 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15995 states. [2023-12-16 06:33:25,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15995 to 8018. [2023-12-16 06:33:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8018 states, 8017 states have (on average 1.5499563427716103) internal successors, (12426), 8017 states have internal predecessors, (12426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8018 states to 8018 states and 12426 transitions. [2023-12-16 06:33:25,895 INFO L78 Accepts]: Start accepts. Automaton has 8018 states and 12426 transitions. Word has length 309 [2023-12-16 06:33:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:25,896 INFO L495 AbstractCegarLoop]: Abstraction has 8018 states and 12426 transitions. [2023-12-16 06:33:25,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 8018 states and 12426 transitions. [2023-12-16 06:33:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-16 06:33:25,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:25,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:25,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:33:25,907 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:25,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:25,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1461466231, now seen corresponding path program 1 times [2023-12-16 06:33:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:25,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930115025] [2023-12-16 06:33:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:26,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:26,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930115025] [2023-12-16 06:33:26,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930115025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:26,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:26,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:26,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363145058] [2023-12-16 06:33:26,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:26,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:26,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:26,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:26,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:26,111 INFO L87 Difference]: Start difference. First operand 8018 states and 12426 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:26,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:26,218 INFO L93 Difference]: Finished difference Result 23593 states and 36495 transitions. [2023-12-16 06:33:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:26,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 309 [2023-12-16 06:33:26,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:26,245 INFO L225 Difference]: With dead ends: 23593 [2023-12-16 06:33:26,245 INFO L226 Difference]: Without dead ends: 15712 [2023-12-16 06:33:26,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:26,261 INFO L413 NwaCegarLoop]: 2361 mSDtfsCounter, 1090 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 3517 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:26,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 3517 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15712 states. [2023-12-16 06:33:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15712 to 15710. [2023-12-16 06:33:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 15709 states have (on average 1.54051817429499) internal successors, (24200), 15709 states have internal predecessors, (24200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 24200 transitions. [2023-12-16 06:33:26,545 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 24200 transitions. Word has length 309 [2023-12-16 06:33:26,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:26,545 INFO L495 AbstractCegarLoop]: Abstraction has 15710 states and 24200 transitions. [2023-12-16 06:33:26,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:26,546 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 24200 transitions. [2023-12-16 06:33:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2023-12-16 06:33:26,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:26,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:26,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:33:26,564 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:26,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1795463375, now seen corresponding path program 1 times [2023-12-16 06:33:26,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:26,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206138405] [2023-12-16 06:33:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:26,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:26,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:26,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206138405] [2023-12-16 06:33:26,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206138405] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:26,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:26,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:26,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092579446] [2023-12-16 06:33:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:26,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:26,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:26,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:26,672 INFO L87 Difference]: Start difference. First operand 15710 states and 24200 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:26,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:26,801 INFO L93 Difference]: Finished difference Result 47027 states and 72423 transitions. [2023-12-16 06:33:26,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:26,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 310 [2023-12-16 06:33:26,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:26,856 INFO L225 Difference]: With dead ends: 47027 [2023-12-16 06:33:26,857 INFO L226 Difference]: Without dead ends: 31372 [2023-12-16 06:33:26,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:26,969 INFO L413 NwaCegarLoop]: 2415 mSDtfsCounter, 1201 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 3621 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:26,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 3621 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:26,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31372 states. [2023-12-16 06:33:27,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31372 to 15728. [2023-12-16 06:33:27,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15728 states, 15727 states have (on average 1.5400902905830738) internal successors, (24221), 15727 states have internal predecessors, (24221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:27,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15728 states to 15728 states and 24221 transitions. [2023-12-16 06:33:27,322 INFO L78 Accepts]: Start accepts. Automaton has 15728 states and 24221 transitions. Word has length 310 [2023-12-16 06:33:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:27,322 INFO L495 AbstractCegarLoop]: Abstraction has 15728 states and 24221 transitions. [2023-12-16 06:33:27,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 15728 states and 24221 transitions. [2023-12-16 06:33:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-16 06:33:27,338 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:27,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:27,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:33:27,339 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:27,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:27,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1274237916, now seen corresponding path program 1 times [2023-12-16 06:33:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:27,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564735347] [2023-12-16 06:33:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:27,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:27,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564735347] [2023-12-16 06:33:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564735347] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:27,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:27,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:27,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944156975] [2023-12-16 06:33:27,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:27,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:27,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:27,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:27,462 INFO L87 Difference]: Start difference. First operand 15728 states and 24221 transitions. Second operand has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:27,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:27,723 INFO L93 Difference]: Finished difference Result 44553 states and 68466 transitions. [2023-12-16 06:33:27,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:27,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 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 311 [2023-12-16 06:33:27,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:27,766 INFO L225 Difference]: With dead ends: 44553 [2023-12-16 06:33:27,766 INFO L226 Difference]: Without dead ends: 29065 [2023-12-16 06:33:27,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:27,784 INFO L413 NwaCegarLoop]: 2368 mSDtfsCounter, 1084 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 3524 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:27,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 3524 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29065 states. [2023-12-16 06:33:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29065 to 29063. [2023-12-16 06:33:28,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29063 states, 29062 states have (on average 1.5290413598513524) internal successors, (44437), 29062 states have internal predecessors, (44437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:28,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29063 states to 29063 states and 44437 transitions. [2023-12-16 06:33:28,332 INFO L78 Accepts]: Start accepts. Automaton has 29063 states and 44437 transitions. Word has length 311 [2023-12-16 06:33:28,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:28,333 INFO L495 AbstractCegarLoop]: Abstraction has 29063 states and 44437 transitions. [2023-12-16 06:33:28,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.66666666666667) internal successors, (311), 3 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 29063 states and 44437 transitions. [2023-12-16 06:33:28,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-12-16 06:33:28,365 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:28,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:28,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:33:28,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:28,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:28,366 INFO L85 PathProgramCache]: Analyzing trace with hash 2089025153, now seen corresponding path program 1 times [2023-12-16 06:33:28,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:28,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345894325] [2023-12-16 06:33:28,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:28,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345894325] [2023-12-16 06:33:28,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345894325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:28,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:28,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:33:28,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333360145] [2023-12-16 06:33:28,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:28,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:33:28,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:28,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:33:28,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:33:28,947 INFO L87 Difference]: Start difference. First operand 29063 states and 44437 transitions. Second operand has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:29,241 INFO L93 Difference]: Finished difference Result 85719 states and 130854 transitions. [2023-12-16 06:33:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:33:29,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 311 [2023-12-16 06:33:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:29,347 INFO L225 Difference]: With dead ends: 85719 [2023-12-16 06:33:29,347 INFO L226 Difference]: Without dead ends: 56710 [2023-12-16 06:33:29,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:33:29,540 INFO L413 NwaCegarLoop]: 1893 mSDtfsCounter, 2343 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 4185 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:29,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2343 Valid, 4185 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:29,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56710 states. [2023-12-16 06:33:30,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56710 to 56708. [2023-12-16 06:33:30,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56708 states, 56707 states have (on average 1.5177314969933164) internal successors, (86066), 56707 states have internal predecessors, (86066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56708 states to 56708 states and 86066 transitions. [2023-12-16 06:33:30,260 INFO L78 Accepts]: Start accepts. Automaton has 56708 states and 86066 transitions. Word has length 311 [2023-12-16 06:33:30,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:30,260 INFO L495 AbstractCegarLoop]: Abstraction has 56708 states and 86066 transitions. [2023-12-16 06:33:30,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:30,261 INFO L276 IsEmpty]: Start isEmpty. Operand 56708 states and 86066 transitions. [2023-12-16 06:33:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2023-12-16 06:33:30,496 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:30,496 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:30,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:33:30,497 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:30,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:30,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1996685787, now seen corresponding path program 1 times [2023-12-16 06:33:30,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:30,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375024318] [2023-12-16 06:33:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:30,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:31,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375024318] [2023-12-16 06:33:31,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375024318] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:31,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:31,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:31,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329971422] [2023-12-16 06:33:31,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:31,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:33:31,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:31,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:33:31,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:33:31,050 INFO L87 Difference]: Start difference. First operand 56708 states and 86066 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:31,623 INFO L93 Difference]: Finished difference Result 167452 states and 253748 transitions. [2023-12-16 06:33:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:33:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 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 313 [2023-12-16 06:33:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:31,986 INFO L225 Difference]: With dead ends: 167452 [2023-12-16 06:33:31,987 INFO L226 Difference]: Without dead ends: 110940 [2023-12-16 06:33:32,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:33:32,059 INFO L413 NwaCegarLoop]: 1819 mSDtfsCounter, 2766 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:32,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2766 Valid, 2965 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110940 states. [2023-12-16 06:33:33,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110940 to 110938. [2023-12-16 06:33:33,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110938 states, 110937 states have (on average 1.5069003127901421) internal successors, (167171), 110937 states have internal predecessors, (167171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110938 states to 110938 states and 167171 transitions. [2023-12-16 06:33:33,886 INFO L78 Accepts]: Start accepts. Automaton has 110938 states and 167171 transitions. Word has length 313 [2023-12-16 06:33:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:33,887 INFO L495 AbstractCegarLoop]: Abstraction has 110938 states and 167171 transitions. [2023-12-16 06:33:33,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 110938 states and 167171 transitions. [2023-12-16 06:33:34,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-16 06:33:34,139 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:34,139 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:34,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:33:34,140 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:34,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:34,140 INFO L85 PathProgramCache]: Analyzing trace with hash 622880312, now seen corresponding path program 1 times [2023-12-16 06:33:34,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:34,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572304389] [2023-12-16 06:33:34,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:34,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:34,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:34,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:34,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572304389] [2023-12-16 06:33:34,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572304389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:34,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:34,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:34,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794230672] [2023-12-16 06:33:34,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:34,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:34,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:34,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:34,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:34,256 INFO L87 Difference]: Start difference. First operand 110938 states and 167171 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:35,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:35,269 INFO L93 Difference]: Finished difference Result 327176 states and 492075 transitions. [2023-12-16 06:33:35,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:35,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 [2023-12-16 06:33:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:35,609 INFO L225 Difference]: With dead ends: 327176 [2023-12-16 06:33:35,609 INFO L226 Difference]: Without dead ends: 217130 [2023-12-16 06:33:35,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:35,716 INFO L413 NwaCegarLoop]: 2324 mSDtfsCounter, 1064 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:35,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 3480 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:36,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217130 states. [2023-12-16 06:33:38,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217130 to 217128. [2023-12-16 06:33:39,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217128 states, 217127 states have (on average 1.4960138536432595) internal successors, (324825), 217127 states have internal predecessors, (324825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217128 states to 217128 states and 324825 transitions. [2023-12-16 06:33:39,741 INFO L78 Accepts]: Start accepts. Automaton has 217128 states and 324825 transitions. Word has length 315 [2023-12-16 06:33:39,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:39,741 INFO L495 AbstractCegarLoop]: Abstraction has 217128 states and 324825 transitions. [2023-12-16 06:33:39,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:39,741 INFO L276 IsEmpty]: Start isEmpty. Operand 217128 states and 324825 transitions. [2023-12-16 06:33:39,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2023-12-16 06:33:39,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:39,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:39,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:33:39,901 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:39,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:39,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1184495869, now seen corresponding path program 1 times [2023-12-16 06:33:39,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:39,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186567638] [2023-12-16 06:33:39,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:39,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:39,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:39,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186567638] [2023-12-16 06:33:39,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186567638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:39,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:39,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:39,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789886233] [2023-12-16 06:33:39,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:39,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:39,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:39,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:39,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:39,999 INFO L87 Difference]: Start difference. First operand 217128 states and 324825 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:41,990 INFO L93 Difference]: Finished difference Result 650590 states and 973171 transitions. [2023-12-16 06:33:41,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:41,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 [2023-12-16 06:33:41,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:42,652 INFO L225 Difference]: With dead ends: 650590 [2023-12-16 06:33:42,652 INFO L226 Difference]: Without dead ends: 433904 [2023-12-16 06:33:42,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:42,775 INFO L413 NwaCegarLoop]: 2383 mSDtfsCounter, 1173 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 3589 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:42,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 3589 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:43,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433904 states. [2023-12-16 06:33:47,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433904 to 217318. [2023-12-16 06:33:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217318 states, 217317 states have (on average 1.4959943308622887) internal successors, (325105), 217317 states have internal predecessors, (325105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217318 states to 217318 states and 325105 transitions. [2023-12-16 06:33:47,997 INFO L78 Accepts]: Start accepts. Automaton has 217318 states and 325105 transitions. Word has length 315 [2023-12-16 06:33:47,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:47,997 INFO L495 AbstractCegarLoop]: Abstraction has 217318 states and 325105 transitions. [2023-12-16 06:33:47,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 217318 states and 325105 transitions. [2023-12-16 06:33:48,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-16 06:33:48,167 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:48,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:48,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:33:48,168 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:48,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash -302316166, now seen corresponding path program 1 times [2023-12-16 06:33:48,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:48,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916081047] [2023-12-16 06:33:48,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:48,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:48,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:48,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916081047] [2023-12-16 06:33:48,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916081047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:48,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:48,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:48,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14754786] [2023-12-16 06:33:48,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:48,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:48,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:48,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:48,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:48,271 INFO L87 Difference]: Start difference. First operand 217318 states and 325105 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:50,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:50,182 INFO L93 Difference]: Finished difference Result 650702 states and 973249 transitions. [2023-12-16 06:33:50,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:50,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 316 [2023-12-16 06:33:50,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:51,180 INFO L225 Difference]: With dead ends: 650702 [2023-12-16 06:33:51,180 INFO L226 Difference]: Without dead ends: 434066 [2023-12-16 06:33:51,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:51,297 INFO L413 NwaCegarLoop]: 2383 mSDtfsCounter, 1168 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 3589 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:51,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 3589 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:33:51,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434066 states. [2023-12-16 06:33:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434066 to 217480. [2023-12-16 06:33:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217480 states, 217479 states have (on average 1.4957352204120857) internal successors, (325291), 217479 states have internal predecessors, (325291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:55,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217480 states to 217480 states and 325291 transitions. [2023-12-16 06:33:55,829 INFO L78 Accepts]: Start accepts. Automaton has 217480 states and 325291 transitions. Word has length 316 [2023-12-16 06:33:55,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:33:55,829 INFO L495 AbstractCegarLoop]: Abstraction has 217480 states and 325291 transitions. [2023-12-16 06:33:55,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 217480 states and 325291 transitions. [2023-12-16 06:33:56,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-12-16 06:33:56,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:33:56,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:33:56,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:33:56,007 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:33:56,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:33:56,008 INFO L85 PathProgramCache]: Analyzing trace with hash -237681005, now seen corresponding path program 1 times [2023-12-16 06:33:56,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:33:56,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250589540] [2023-12-16 06:33:56,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:33:56,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:33:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:33:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:33:56,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:33:56,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250589540] [2023-12-16 06:33:56,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250589540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:33:56,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:33:56,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:33:56,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173656696] [2023-12-16 06:33:56,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:33:56,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:33:56,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:33:56,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:33:56,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:56,111 INFO L87 Difference]: Start difference. First operand 217480 states and 325291 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:33:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:33:58,307 INFO L93 Difference]: Finished difference Result 617995 states and 922532 transitions. [2023-12-16 06:33:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:33:58,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2023-12-16 06:33:58,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:33:59,294 INFO L225 Difference]: With dead ends: 617995 [2023-12-16 06:33:59,294 INFO L226 Difference]: Without dead ends: 402057 [2023-12-16 06:33:59,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:33:59,395 INFO L413 NwaCegarLoop]: 2334 mSDtfsCounter, 1058 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 3490 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:33:59,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 3490 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:33:59,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402057 states. [2023-12-16 06:34:03,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402057 to 402055. [2023-12-16 06:34:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402055 states, 402054 states have (on average 1.4837011943669258) internal successors, (596528), 402054 states have internal predecessors, (596528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:34:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402055 states to 402055 states and 596528 transitions. [2023-12-16 06:34:05,367 INFO L78 Accepts]: Start accepts. Automaton has 402055 states and 596528 transitions. Word has length 317 [2023-12-16 06:34:05,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:34:05,368 INFO L495 AbstractCegarLoop]: Abstraction has 402055 states and 596528 transitions. [2023-12-16 06:34:05,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:34:05,368 INFO L276 IsEmpty]: Start isEmpty. Operand 402055 states and 596528 transitions. [2023-12-16 06:34:06,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2023-12-16 06:34:06,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:34:06,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:34:06,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:34:06,022 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:34:06,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:34:06,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1901912752, now seen corresponding path program 1 times [2023-12-16 06:34:06,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:34:06,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582931402] [2023-12-16 06:34:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:34:06,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:34:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:34:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:34:06,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:34:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582931402] [2023-12-16 06:34:06,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582931402] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:34:06,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:34:06,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:34:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811894981] [2023-12-16 06:34:06,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:34:06,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 06:34:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:34:06,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 06:34:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:34:06,433 INFO L87 Difference]: Start difference. First operand 402055 states and 596528 transitions. Second operand has 5 states, 5 states have (on average 63.4) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:34:10,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:34:10,273 INFO L93 Difference]: Finished difference Result 1185997 states and 1756020 transitions. [2023-12-16 06:34:10,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:34:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 4 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2023-12-16 06:34:10,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:34:11,929 INFO L225 Difference]: With dead ends: 1185997 [2023-12-16 06:34:11,929 INFO L226 Difference]: Without dead ends: 784560 [2023-12-16 06:34:12,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 06:34:12,133 INFO L413 NwaCegarLoop]: 1710 mSDtfsCounter, 4045 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4045 SdHoareTripleChecker+Valid, 2856 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:34:12,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4045 Valid, 2856 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] Received shutdown request... [2023-12-16 06:34:12,539 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:34:12,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784560 states. [2023-12-16 06:34:12,575 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:34:12,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:34:12,576 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 06:34:12,580 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:34:12,581 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:34:12,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:34:12 BoogieIcfgContainer [2023-12-16 06:34:12,583 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:34:12,583 INFO L158 Benchmark]: Toolchain (without parser) took 52972.64ms. Allocated memory was 310.4MB in the beginning and 7.9GB in the end (delta: 7.6GB). Free memory was 255.6MB in the beginning and 5.0GB in the end (delta: -4.8GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 06:34:12,583 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 226.5MB. Free memory was 177.4MB in the beginning and 177.3MB in the end (delta: 129.6kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:34:12,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.00ms. Allocated memory is still 310.4MB. Free memory was 255.6MB in the beginning and 246.9MB in the end (delta: 8.8MB). Peak memory consumption was 36.6MB. Max. memory is 8.0GB. [2023-12-16 06:34:12,584 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.77ms. Allocated memory is still 310.4MB. Free memory was 246.3MB in the beginning and 233.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 06:34:12,584 INFO L158 Benchmark]: Boogie Preprocessor took 147.06ms. Allocated memory is still 310.4MB. Free memory was 233.2MB in the beginning and 221.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 06:34:12,584 INFO L158 Benchmark]: RCFGBuilder took 1580.19ms. Allocated memory was 310.4MB in the beginning and 433.1MB in the end (delta: 122.7MB). Free memory was 220.6MB in the beginning and 360.0MB in the end (delta: -139.4MB). Peak memory consumption was 88.6MB. Max. memory is 8.0GB. [2023-12-16 06:34:12,584 INFO L158 Benchmark]: TraceAbstraction took 50209.99ms. Allocated memory was 433.1MB in the beginning and 7.9GB in the end (delta: 7.5GB). Free memory was 359.0MB in the beginning and 5.0GB in the end (delta: -4.7GB). Peak memory consumption was 2.9GB. Max. memory is 8.0GB. [2023-12-16 06:34:12,585 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 226.5MB. Free memory was 177.4MB in the beginning and 177.3MB in the end (delta: 129.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 931.00ms. Allocated memory is still 310.4MB. Free memory was 255.6MB in the beginning and 246.9MB in the end (delta: 8.8MB). Peak memory consumption was 36.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 98.77ms. Allocated memory is still 310.4MB. Free memory was 246.3MB in the beginning and 233.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 147.06ms. Allocated memory is still 310.4MB. Free memory was 233.2MB in the beginning and 221.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1580.19ms. Allocated memory was 310.4MB in the beginning and 433.1MB in the end (delta: 122.7MB). Free memory was 220.6MB in the beginning and 360.0MB in the end (delta: -139.4MB). Peak memory consumption was 88.6MB. Max. memory is 8.0GB. * TraceAbstraction took 50209.99ms. Allocated memory was 433.1MB in the beginning and 7.9GB in the end (delta: 7.5GB). Free memory was 359.0MB in the beginning and 5.0GB in the end (delta: -4.7GB). Peak memory consumption was 2.9GB. 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: 2009]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 2009). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 776 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.8s, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23268 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23268 mSDsluCounter, 48087 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18203 mSDsCounter, 224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 724 IncrementalHoareTripleChecker+Invalid, 948 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 224 mSolverCounterUnsat, 29884 mSDtfsCounter, 724 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402055occurred in iteration=14, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 24.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 456813 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 4671 NumberOfCodeBlocks, 4671 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 4656 ConstructedInterpolants, 0 QuantifiedInterpolants, 11406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 0/0 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