/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-64bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal28.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:11:02,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:11:02,945 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2023-12-16 19:11:02,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:11:02,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:11:02,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:11:02,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:11:02,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:11:02,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:11:02,970 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:11:02,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:11:02,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:11:02,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:11:02,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:11:02,971 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:11:02,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:11:02,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:11:02,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:11:02,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:11:02,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:11:02,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:11:02,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:11:02,974 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:11:02,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:11:02,975 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:11:02,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:11:02,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:11:02,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:11:02,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:11:02,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:11:02,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:11:02,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:11:02,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:11:02,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:11:02,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:11:02,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:11:02,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:11:02,979 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:11:02,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:11:02,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:11:02,979 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:11:03,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:11:03,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:11:03,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:11:03,206 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:11:03,207 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:11:03,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal28.c [2023-12-16 19:11:04,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:11:04,879 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:11:04,879 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal28.c [2023-12-16 19:11:04,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19e5f881/497ebde667394f748ed91feb51d0c9dc/FLAG7cf5e7fd5 [2023-12-16 19:11:04,943 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19e5f881/497ebde667394f748ed91feb51d0c9dc [2023-12-16 19:11:04,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:11:04,949 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:11:04,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:11:04,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:11:04,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:11:04,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:11:04" (1/1) ... [2023-12-16 19:11:04,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9404bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:04, skipping insertion in model container [2023-12-16 19:11:04,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:11:04" (1/1) ... [2023-12-16 19:11:05,184 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:11:05,489 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal28.c[1245,1258] [2023-12-16 19:11:06,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:11:06,606 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:11:06,617 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal28.c[1245,1258] [2023-12-16 19:11:07,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:11:07,408 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:11:07,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07 WrapperNode [2023-12-16 19:11:07,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:11:07,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:11:07,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:11:07,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:11:07,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:07,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:10,857 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40949 [2023-12-16 19:11:10,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:11:10,858 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:11:10,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:11:10,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:11:10,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:10,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:11,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:12,452 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-12-16 19:11:12,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:12,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:13,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:13,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:14,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:14,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:14,936 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:11:14,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:11:14,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:11:14,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:11:14,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (1/1) ... [2023-12-16 19:11:14,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:11:14,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:11:14,972 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 19:11:14,987 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 19:11:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:11:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:11:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 19:11:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:11:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:11:16,609 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:11:16,611 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:11:35,044 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:11:35,617 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:11:35,618 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:11:35,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:11:35 BoogieIcfgContainer [2023-12-16 19:11:35,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:11:35,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:11:35,622 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:11:35,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:11:35,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:11:04" (1/3) ... [2023-12-16 19:11:35,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453d4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:11:35, skipping insertion in model container [2023-12-16 19:11:35,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:11:07" (2/3) ... [2023-12-16 19:11:35,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453d4c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:11:35, skipping insertion in model container [2023-12-16 19:11:35,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:11:35" (3/3) ... [2023-12-16 19:11:35,629 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal28.c [2023-12-16 19:11:35,645 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:11:35,646 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:11:35,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:11:35,823 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;@387f0ea0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:11:35,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:11:35,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 9236 states, 9234 states have (on average 1.6672081438163309) internal successors, (15395), 9235 states have internal predecessors, (15395), 0 states have call successors, (0), 0 states 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 19:11:35,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 19:11:35,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:35,868 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] [2023-12-16 19:11:35,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:35,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash -52881605, now seen corresponding path program 1 times [2023-12-16 19:11:35,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:35,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499080950] [2023-12-16 19:11:35,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:35,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:37,246 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 19:11:37,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:37,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499080950] [2023-12-16 19:11:37,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499080950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:37,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:37,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:11:37,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959080793] [2023-12-16 19:11:37,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:37,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:11:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:37,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:11:37,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:37,312 INFO L87 Difference]: Start difference. First operand has 9236 states, 9234 states have (on average 1.6672081438163309) internal successors, (15395), 9235 states have internal predecessors, (15395), 0 states have call successors, (0), 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 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 19:11:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:37,800 INFO L93 Difference]: Finished difference Result 18405 states and 30681 transitions. [2023-12-16 19:11:37,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:11:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2023-12-16 19:11:37,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:11:37,855 INFO L225 Difference]: With dead ends: 18405 [2023-12-16 19:11:37,855 INFO L226 Difference]: Without dead ends: 9236 [2023-12-16 19:11:37,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:37,882 INFO L413 NwaCegarLoop]: 15388 mSDtfsCounter, 1 mSDsluCounter, 30771 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46159 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:37,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46159 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:11:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9236 states. [2023-12-16 19:11:38,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9236 to 9236. [2023-12-16 19:11:38,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9236 states, 9235 states have (on average 1.666811044937737) internal successors, (15393), 9235 states have internal predecessors, (15393), 0 states have call successors, (0), 0 states 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 19:11:38,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9236 states to 9236 states and 15393 transitions. [2023-12-16 19:11:38,206 INFO L78 Accepts]: Start accepts. Automaton has 9236 states and 15393 transitions. Word has length 114 [2023-12-16 19:11:38,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:11:38,209 INFO L495 AbstractCegarLoop]: Abstraction has 9236 states and 15393 transitions. [2023-12-16 19:11:38,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states 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 19:11:38,210 INFO L276 IsEmpty]: Start isEmpty. Operand 9236 states and 15393 transitions. [2023-12-16 19:11:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 19:11:38,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:38,215 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] [2023-12-16 19:11:38,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:11:38,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:38,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:38,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1637604147, now seen corresponding path program 1 times [2023-12-16 19:11:38,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:38,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520099924] [2023-12-16 19:11:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:38,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:38,666 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 19:11:38,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:38,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520099924] [2023-12-16 19:11:38,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520099924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:38,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:38,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:11:38,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740198203] [2023-12-16 19:11:38,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:38,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:11:38,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:38,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:11:38,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:38,675 INFO L87 Difference]: Start difference. First operand 9236 states and 15393 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 19:11:38,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:38,984 INFO L93 Difference]: Finished difference Result 18408 states and 30679 transitions. [2023-12-16 19:11:38,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:11:38,985 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2023-12-16 19:11:38,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:11:39,022 INFO L225 Difference]: With dead ends: 18408 [2023-12-16 19:11:39,022 INFO L226 Difference]: Without dead ends: 9239 [2023-12-16 19:11:39,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:11:39,037 INFO L413 NwaCegarLoop]: 15388 mSDtfsCounter, 1 mSDsluCounter, 30769 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46157 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:39,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46157 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:11:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9239 states. [2023-12-16 19:11:39,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9239 to 9238. [2023-12-16 19:11:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9238 states, 9237 states have (on average 1.6666666666666667) internal successors, (15395), 9237 states have internal predecessors, (15395), 0 states have call successors, (0), 0 states 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 19:11:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9238 states to 9238 states and 15395 transitions. [2023-12-16 19:11:39,410 INFO L78 Accepts]: Start accepts. Automaton has 9238 states and 15395 transitions. Word has length 115 [2023-12-16 19:11:39,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:11:39,411 INFO L495 AbstractCegarLoop]: Abstraction has 9238 states and 15395 transitions. [2023-12-16 19:11:39,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states 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 19:11:39,411 INFO L276 IsEmpty]: Start isEmpty. Operand 9238 states and 15395 transitions. [2023-12-16 19:11:39,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 19:11:39,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:39,412 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] [2023-12-16 19:11:39,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:11:39,412 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:39,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:39,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1956512745, now seen corresponding path program 1 times [2023-12-16 19:11:39,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:39,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257650467] [2023-12-16 19:11:39,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:39,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:40,408 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 19:11:40,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:40,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257650467] [2023-12-16 19:11:40,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257650467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:40,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:40,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:11:40,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458750776] [2023-12-16 19:11:40,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:40,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:11:40,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:40,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:11:40,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:11:40,414 INFO L87 Difference]: Start difference. First operand 9238 states and 15395 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 19:11:41,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:41,831 INFO L93 Difference]: Finished difference Result 27671 states and 46114 transitions. [2023-12-16 19:11:41,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:11:41,834 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2023-12-16 19:11:41,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:11:41,896 INFO L225 Difference]: With dead ends: 27671 [2023-12-16 19:11:41,897 INFO L226 Difference]: Without dead ends: 18500 [2023-12-16 19:11:41,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-16 19:11:41,918 INFO L413 NwaCegarLoop]: 15483 mSDtfsCounter, 76552 mSDsluCounter, 46003 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76552 SdHoareTripleChecker+Valid, 61486 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:41,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76552 Valid, 61486 Invalid, 228 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 19:11:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18500 states. [2023-12-16 19:11:42,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18500 to 9330. [2023-12-16 19:11:42,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9330 states, 9329 states have (on average 1.6665237431664701) internal successors, (15547), 9329 states have internal predecessors, (15547), 0 states have call successors, (0), 0 states 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 19:11:42,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9330 states to 9330 states and 15547 transitions. [2023-12-16 19:11:42,199 INFO L78 Accepts]: Start accepts. Automaton has 9330 states and 15547 transitions. Word has length 116 [2023-12-16 19:11:42,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:11:42,200 INFO L495 AbstractCegarLoop]: Abstraction has 9330 states and 15547 transitions. [2023-12-16 19:11:42,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 19:11:42,204 INFO L276 IsEmpty]: Start isEmpty. Operand 9330 states and 15547 transitions. [2023-12-16 19:11:42,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 19:11:42,210 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:42,210 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] [2023-12-16 19:11:42,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:11:42,211 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:42,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:42,211 INFO L85 PathProgramCache]: Analyzing trace with hash -633058827, now seen corresponding path program 1 times [2023-12-16 19:11:42,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:42,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840008288] [2023-12-16 19:11:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:42,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:43,265 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 19:11:43,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:43,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840008288] [2023-12-16 19:11:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840008288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:43,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:43,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:11:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825748212] [2023-12-16 19:11:43,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:43,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 19:11:43,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 19:11:43,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:11:43,268 INFO L87 Difference]: Start difference. First operand 9330 states and 15547 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 19:11:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:11:47,928 INFO L93 Difference]: Finished difference Result 72948 states and 121464 transitions. [2023-12-16 19:11:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-16 19:11:47,928 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2023-12-16 19:11:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:11:48,008 INFO L225 Difference]: With dead ends: 72948 [2023-12-16 19:11:48,008 INFO L226 Difference]: Without dead ends: 36674 [2023-12-16 19:11:48,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=178, Invalid=374, Unknown=0, NotChecked=0, Total=552 [2023-12-16 19:11:48,073 INFO L413 NwaCegarLoop]: 15296 mSDtfsCounter, 406643 mSDsluCounter, 75751 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406643 SdHoareTripleChecker+Valid, 91047 SdHoareTripleChecker+Invalid, 1756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:48,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [406643 Valid, 91047 Invalid, 1756 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [330 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 19:11:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36674 states. [2023-12-16 19:11:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36674 to 9340. [2023-12-16 19:11:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9340 states, 9339 states have (on average 1.6662383552842917) internal successors, (15561), 9339 states have internal predecessors, (15561), 0 states have call successors, (0), 0 states 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 19:11:48,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9340 states to 9340 states and 15561 transitions. [2023-12-16 19:11:48,482 INFO L78 Accepts]: Start accepts. Automaton has 9340 states and 15561 transitions. Word has length 117 [2023-12-16 19:11:48,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:11:48,483 INFO L495 AbstractCegarLoop]: Abstraction has 9340 states and 15561 transitions. [2023-12-16 19:11:48,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 19:11:48,483 INFO L276 IsEmpty]: Start isEmpty. Operand 9340 states and 15561 transitions. [2023-12-16 19:11:48,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-16 19:11:48,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:11:48,486 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] [2023-12-16 19:11:48,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:11:48,486 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:11:48,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:11:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash 703850151, now seen corresponding path program 1 times [2023-12-16 19:11:48,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:11:48,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593359349] [2023-12-16 19:11:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:11:48,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:11:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:11:49,654 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 19:11:49,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:11:49,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593359349] [2023-12-16 19:11:49,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593359349] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:11:49,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:11:49,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 19:11:49,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807708252] [2023-12-16 19:11:49,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:11:49,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 19:11:49,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:11:49,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 19:11:49,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 19:11:49,656 INFO L87 Difference]: Start difference. First operand 9340 states and 15561 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 19:11:50,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 19:11:50,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2023-12-16 19:11:50,495 INFO L413 NwaCegarLoop]: 812 mSDtfsCounter, 2371 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 19:11:50,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 2979 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 19:11:50,497 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:11:50,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 19:11:50,498 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (9340states) and FLOYD_HOARE automaton (currently 10 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (887 states constructed, input type IntersectNwa). [2023-12-16 19:11:50,502 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 19:11:50,507 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 19:11:50,508 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:11:50,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:11:50 BoogieIcfgContainer [2023-12-16 19:11:50,510 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:11:50,511 INFO L158 Benchmark]: Toolchain (without parser) took 45561.47ms. Allocated memory was 207.6MB in the beginning and 5.7GB in the end (delta: 5.5GB). Free memory was 138.1MB in the beginning and 2.5GB in the end (delta: -2.4GB). Peak memory consumption was 3.2GB. Max. memory is 8.0GB. [2023-12-16 19:11:50,511 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:11:50,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2459.88ms. Allocated memory was 207.6MB in the beginning and 704.6MB in the end (delta: 497.0MB). Free memory was 138.1MB in the beginning and 488.9MB in the end (delta: -350.9MB). Peak memory consumption was 327.5MB. Max. memory is 8.0GB. [2023-12-16 19:11:50,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 3445.84ms. Allocated memory was 704.6MB in the beginning and 3.0GB in the end (delta: 2.3GB). Free memory was 488.9MB in the beginning and 2.3GB in the end (delta: -1.8GB). Peak memory consumption was 517.5MB. Max. memory is 8.0GB. [2023-12-16 19:11:50,512 INFO L158 Benchmark]: Boogie Preprocessor took 4077.78ms. Allocated memory was 3.0GB in the beginning and 5.0GB in the end (delta: 2.0GB). Free memory was 2.3GB in the beginning and 4.1GB in the end (delta: -1.8GB). Peak memory consumption was 379.6MB. Max. memory is 8.0GB. [2023-12-16 19:11:50,512 INFO L158 Benchmark]: RCFGBuilder took 20682.58ms. Allocated memory was 5.0GB in the beginning and 5.7GB in the end (delta: 730.9MB). Free memory was 4.1GB in the beginning and 4.2GB in the end (delta: -100.1MB). Peak memory consumption was 631.2MB. Max. memory is 8.0GB. [2023-12-16 19:11:50,512 INFO L158 Benchmark]: TraceAbstraction took 14887.97ms. Allocated memory is still 5.7GB. Free memory was 4.2GB in the beginning and 2.5GB in the end (delta: 1.7GB). Peak memory consumption was 1.7GB. Max. memory is 8.0GB. [2023-12-16 19:11:50,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2459.88ms. Allocated memory was 207.6MB in the beginning and 704.6MB in the end (delta: 497.0MB). Free memory was 138.1MB in the beginning and 488.9MB in the end (delta: -350.9MB). Peak memory consumption was 327.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 3445.84ms. Allocated memory was 704.6MB in the beginning and 3.0GB in the end (delta: 2.3GB). Free memory was 488.9MB in the beginning and 2.3GB in the end (delta: -1.8GB). Peak memory consumption was 517.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 4077.78ms. Allocated memory was 3.0GB in the beginning and 5.0GB in the end (delta: 2.0GB). Free memory was 2.3GB in the beginning and 4.1GB in the end (delta: -1.8GB). Peak memory consumption was 379.6MB. Max. memory is 8.0GB. * RCFGBuilder took 20682.58ms. Allocated memory was 5.0GB in the beginning and 5.7GB in the end (delta: 730.9MB). Free memory was 4.1GB in the beginning and 4.2GB in the end (delta: -100.1MB). Peak memory consumption was 631.2MB. Max. memory is 8.0GB. * TraceAbstraction took 14887.97ms. Allocated memory is still 5.7GB. Free memory was 4.2GB in the beginning and 2.5GB in the end (delta: 1.7GB). Peak memory consumption was 1.7GB. 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: 21]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 21). Cancelled while NwaCegarLoop was constructing difference of abstraction (9340states) and FLOYD_HOARE automaton (currently 10 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (887 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9236 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 485568 SdHoareTripleChecker+Valid, 4.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 485568 mSDsluCounter, 247828 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 185461 mSDsCounter, 332 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2525 IncrementalHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 332 mSolverCounterUnsat, 62367 mSDtfsCounter, 2525 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9340occurred in iteration=4, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 36505 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 575 ConstructedInterpolants, 0 QuantifiedInterpolants, 1930 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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