/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/eca-rers2012/Problem19_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:23:10,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:23:10,502 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 02:23:10,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:23:10,508 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:23:10,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:23:10,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:23:10,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:23:10,531 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:23:10,531 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:23:10,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:23:10,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:23:10,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:23:10,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:23:10,533 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:23:10,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:23:10,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:23:10,533 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:23:10,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:23:10,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:23:10,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:23:10,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:23:10,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:23:10,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:23:10,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:23:10,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:23:10,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:23:10,539 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:23:10,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:23:10,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:23:10,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:23:10,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:23:10,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:23:10,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:23:10,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:23:10,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:23:10,540 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:23:10,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:23:10,541 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:23:10,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:23:10,541 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:23:10,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:23:10,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:23:10,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:23:10,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:23:10,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:23:10,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:23:10,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:23:10,767 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:23:10,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label21.c [2023-12-16 02:23:11,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:23:12,188 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:23:12,190 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label21.c [2023-12-16 02:23:12,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bbc9376/4f31d70bddef436b97e18ef3f8357a1a/FLAG0bfb4e446 [2023-12-16 02:23:12,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3bbc9376/4f31d70bddef436b97e18ef3f8357a1a [2023-12-16 02:23:12,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:23:12,252 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:23:12,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:23:12,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:23:12,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:23:12,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:23:12" (1/1) ... [2023-12-16 02:23:12,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486f87b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:12, skipping insertion in model container [2023-12-16 02:23:12,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:23:12" (1/1) ... [2023-12-16 02:23:12,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:23:12,627 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label21.c[2361,2374] [2023-12-16 02:23:13,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:23:13,570 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:23:13,590 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label21.c[2361,2374] [2023-12-16 02:23:14,165 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:23:14,190 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:23:14,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14 WrapperNode [2023-12-16 02:23:14,192 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:23:14,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:23:14,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:23:14,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:23:14,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:14,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:14,740 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2023-12-16 02:23:14,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:23:14,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:23:14,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:23:14,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:23:14,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:14,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:14,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,096 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 02:23:15,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,486 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,594 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:23:15,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:23:15,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:23:15,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:23:15,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (1/1) ... [2023-12-16 02:23:15,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:23:15,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:23:15,617 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 02:23:15,637 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 02:23:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:23:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:23:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:23:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:23:15,702 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:23:15,703 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:23:21,369 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:23:21,432 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:23:21,432 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:23:21,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:23:21 BoogieIcfgContainer [2023-12-16 02:23:21,432 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:23:21,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:23:21,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:23:21,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:23:21,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:23:12" (1/3) ... [2023-12-16 02:23:21,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0f891b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:23:21, skipping insertion in model container [2023-12-16 02:23:21,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:23:14" (2/3) ... [2023-12-16 02:23:21,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b0f891b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:23:21, skipping insertion in model container [2023-12-16 02:23:21,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:23:21" (3/3) ... [2023-12-16 02:23:21,439 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label21.c [2023-12-16 02:23:21,451 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:23:21,451 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:23:21,509 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:23:21,513 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;@1fa80ae4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:23:21,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:23:21,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states 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 02:23:21,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-16 02:23:21,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:21,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:23:21,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:21,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1719832572, now seen corresponding path program 1 times [2023-12-16 02:23:21,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:21,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044064238] [2023-12-16 02:23:21,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:21,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:21,621 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 02:23:21,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:21,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044064238] [2023-12-16 02:23:21,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044064238] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:21,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:21,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:23:21,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143521612] [2023-12-16 02:23:21,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:21,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:23:21,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:23:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:23:21,647 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 02:23:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:23:21,711 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-16 02:23:21,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:23:21,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-12-16 02:23:21,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:23:21,730 INFO L225 Difference]: With dead ends: 3371 [2023-12-16 02:23:21,731 INFO L226 Difference]: Without dead ends: 1684 [2023-12-16 02:23:21,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:23:21,739 INFO L413 NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:23:21,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:23:21,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-16 02:23:21,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-16 02:23:21,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 0 states have call successors, (0), 0 states 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 02:23:21,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-16 02:23:21,822 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 14 [2023-12-16 02:23:21,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:23:21,823 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-16 02:23:21,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 02:23:21,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-16 02:23:21,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-16 02:23:21,823 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:21,823 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:23:21,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:23:21,824 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:21,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash -31638648, now seen corresponding path program 1 times [2023-12-16 02:23:21,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:21,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539467711] [2023-12-16 02:23:21,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:21,919 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 02:23:21,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:21,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539467711] [2023-12-16 02:23:21,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539467711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:21,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:21,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:23:21,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066225658] [2023-12-16 02:23:21,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:21,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:23:21,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:21,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:23:21,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:21,922 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 02:23:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:23:27,832 INFO L93 Difference]: Finished difference Result 4862 states and 9131 transitions. [2023-12-16 02:23:27,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:23:27,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2023-12-16 02:23:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:23:27,844 INFO L225 Difference]: With dead ends: 4862 [2023-12-16 02:23:27,845 INFO L226 Difference]: Without dead ends: 3179 [2023-12-16 02:23:27,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:27,849 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 1633 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 4141 mSolverCounterSat, 2020 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 6161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2020 IncrementalHoareTripleChecker+Valid, 4141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:23:27,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1633 Valid, 1110 Invalid, 6161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2020 Valid, 4141 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-16 02:23:27,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2023-12-16 02:23:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 3121. [2023-12-16 02:23:27,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 1.728525641025641) internal successors, (5393), 3120 states have internal predecessors, (5393), 0 states have call successors, (0), 0 states 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 02:23:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 5393 transitions. [2023-12-16 02:23:27,913 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 5393 transitions. Word has length 14 [2023-12-16 02:23:27,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:23:27,913 INFO L495 AbstractCegarLoop]: Abstraction has 3121 states and 5393 transitions. [2023-12-16 02:23:27,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 02:23:27,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 5393 transitions. [2023-12-16 02:23:27,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-16 02:23:27,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:27,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:23:27,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:23:27,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:27,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1655103915, now seen corresponding path program 1 times [2023-12-16 02:23:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:27,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486563177] [2023-12-16 02:23:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:27,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:23:28,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:28,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486563177] [2023-12-16 02:23:28,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486563177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:28,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:28,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:23:28,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357604010] [2023-12-16 02:23:28,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:28,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:23:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:28,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:23:28,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:28,112 INFO L87 Difference]: Start difference. First operand 3121 states and 5393 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:23:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:23:34,119 INFO L93 Difference]: Finished difference Result 9134 states and 15859 transitions. [2023-12-16 02:23:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:23:34,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2023-12-16 02:23:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:23:34,139 INFO L225 Difference]: With dead ends: 9134 [2023-12-16 02:23:34,140 INFO L226 Difference]: Without dead ends: 6014 [2023-12-16 02:23:34,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:34,146 INFO L413 NwaCegarLoop]: 719 mSDtfsCounter, 2533 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 5119 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2533 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 5553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:23:34,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2533 Valid, 990 Invalid, 5553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5119 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-12-16 02:23:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2023-12-16 02:23:34,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 6012. [2023-12-16 02:23:34,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 6011 states have (on average 1.6709366162036268) internal successors, (10044), 6011 states have internal predecessors, (10044), 0 states have call successors, (0), 0 states 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 02:23:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 10044 transitions. [2023-12-16 02:23:34,232 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 10044 transitions. Word has length 82 [2023-12-16 02:23:34,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:23:34,236 INFO L495 AbstractCegarLoop]: Abstraction has 6012 states and 10044 transitions. [2023-12-16 02:23:34,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:23:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 10044 transitions. [2023-12-16 02:23:34,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-16 02:23:34,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:34,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:23:34,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:23:34,241 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:34,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:34,243 INFO L85 PathProgramCache]: Analyzing trace with hash 553788016, now seen corresponding path program 1 times [2023-12-16 02:23:34,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:34,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192292798] [2023-12-16 02:23:34,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:34,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:23:34,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:34,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192292798] [2023-12-16 02:23:34,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192292798] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:34,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:34,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:23:34,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410853697] [2023-12-16 02:23:34,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:34,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:23:34,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:23:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:34,375 INFO L87 Difference]: Start difference. First operand 6012 states and 10044 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 02:23:39,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:23:39,973 INFO L93 Difference]: Finished difference Result 17599 states and 29555 transitions. [2023-12-16 02:23:39,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:23:39,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2023-12-16 02:23:39,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:23:40,004 INFO L225 Difference]: With dead ends: 17599 [2023-12-16 02:23:40,004 INFO L226 Difference]: Without dead ends: 11588 [2023-12-16 02:23:40,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:40,013 INFO L413 NwaCegarLoop]: 1498 mSDtfsCounter, 1536 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 4337 mSolverCounterSat, 1469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 5806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 4337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:23:40,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1536 Valid, 1717 Invalid, 5806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1469 Valid, 4337 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-16 02:23:40,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11588 states. [2023-12-16 02:23:40,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11588 to 11551. [2023-12-16 02:23:40,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11551 states, 11550 states have (on average 1.4579220779220778) internal successors, (16839), 11550 states have internal predecessors, (16839), 0 states have call successors, (0), 0 states 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 02:23:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11551 states to 11551 states and 16839 transitions. [2023-12-16 02:23:40,206 INFO L78 Accepts]: Start accepts. Automaton has 11551 states and 16839 transitions. Word has length 85 [2023-12-16 02:23:40,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:23:40,206 INFO L495 AbstractCegarLoop]: Abstraction has 11551 states and 16839 transitions. [2023-12-16 02:23:40,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states 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 02:23:40,207 INFO L276 IsEmpty]: Start isEmpty. Operand 11551 states and 16839 transitions. [2023-12-16 02:23:40,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-16 02:23:40,212 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:40,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:23:40,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 02:23:40,212 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:40,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:40,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1451843649, now seen corresponding path program 1 times [2023-12-16 02:23:40,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:40,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880156215] [2023-12-16 02:23:40,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:40,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:23:40,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:40,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880156215] [2023-12-16 02:23:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880156215] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:40,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:40,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:23:40,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429293604] [2023-12-16 02:23:40,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:40,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:23:40,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:40,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:23:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:40,371 INFO L87 Difference]: Start difference. First operand 11551 states and 16839 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 02:23:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:23:46,012 INFO L93 Difference]: Finished difference Result 34261 states and 50012 transitions. [2023-12-16 02:23:46,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:23:46,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2023-12-16 02:23:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:23:46,064 INFO L225 Difference]: With dead ends: 34261 [2023-12-16 02:23:46,064 INFO L226 Difference]: Without dead ends: 22711 [2023-12-16 02:23:46,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:23:46,084 INFO L413 NwaCegarLoop]: 1846 mSDtfsCounter, 1750 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 4316 mSolverCounterSat, 1430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1750 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 5746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1430 IncrementalHoareTripleChecker+Valid, 4316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:23:46,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1750 Valid, 2119 Invalid, 5746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1430 Valid, 4316 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-16 02:23:46,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22711 states. [2023-12-16 02:23:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22711 to 22686. [2023-12-16 02:23:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22686 states, 22685 states have (on average 1.2821247520387922) internal successors, (29085), 22685 states have internal predecessors, (29085), 0 states have call successors, (0), 0 states 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 02:23:46,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22686 states to 22686 states and 29085 transitions. [2023-12-16 02:23:46,385 INFO L78 Accepts]: Start accepts. Automaton has 22686 states and 29085 transitions. Word has length 111 [2023-12-16 02:23:46,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:23:46,385 INFO L495 AbstractCegarLoop]: Abstraction has 22686 states and 29085 transitions. [2023-12-16 02:23:46,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 02:23:46,385 INFO L276 IsEmpty]: Start isEmpty. Operand 22686 states and 29085 transitions. [2023-12-16 02:23:46,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-16 02:23:46,387 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:46,387 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:23:46,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 02:23:46,387 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:46,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:46,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1600618150, now seen corresponding path program 1 times [2023-12-16 02:23:46,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:46,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686319502] [2023-12-16 02:23:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:46,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:47,046 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:23:47,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:47,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686319502] [2023-12-16 02:23:47,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686319502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:47,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:47,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:23:47,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257382319] [2023-12-16 02:23:47,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:47,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:23:47,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:47,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:23:47,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:23:47,049 INFO L87 Difference]: Start difference. First operand 22686 states and 29085 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:23:54,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:23:54,905 INFO L93 Difference]: Finished difference Result 57745 states and 72073 transitions. [2023-12-16 02:23:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:23:54,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2023-12-16 02:23:54,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:23:54,965 INFO L225 Difference]: With dead ends: 57745 [2023-12-16 02:23:54,966 INFO L226 Difference]: Without dead ends: 35060 [2023-12-16 02:23:54,989 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 02:23:54,991 INFO L413 NwaCegarLoop]: 1790 mSDtfsCounter, 3754 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 9619 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3754 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 9791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 9619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:23:54,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3754 Valid, 2148 Invalid, 9791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 9619 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-12-16 02:23:55,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35060 states. [2023-12-16 02:23:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35060 to 33648. [2023-12-16 02:23:55,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33648 states, 33647 states have (on average 1.2264986477249087) internal successors, (41268), 33647 states have internal predecessors, (41268), 0 states have call successors, (0), 0 states 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 02:23:55,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33648 states to 33648 states and 41268 transitions. [2023-12-16 02:23:55,383 INFO L78 Accepts]: Start accepts. Automaton has 33648 states and 41268 transitions. Word has length 233 [2023-12-16 02:23:55,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:23:55,384 INFO L495 AbstractCegarLoop]: Abstraction has 33648 states and 41268 transitions. [2023-12-16 02:23:55,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states 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 02:23:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 33648 states and 41268 transitions. [2023-12-16 02:23:55,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-16 02:23:55,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:23:55,388 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:23:55,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 02:23:55,389 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:23:55,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:23:55,389 INFO L85 PathProgramCache]: Analyzing trace with hash 460518502, now seen corresponding path program 1 times [2023-12-16 02:23:55,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:23:55,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039457943] [2023-12-16 02:23:55,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:23:55,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:23:55,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:23:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 02:23:56,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:23:56,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039457943] [2023-12-16 02:23:56,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039457943] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:23:56,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:23:56,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:23:56,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767906350] [2023-12-16 02:23:56,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:23:56,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:23:56,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:23:56,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:23:56,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:23:56,387 INFO L87 Difference]: Start difference. First operand 33648 states and 41268 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states 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 02:24:04,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:24:04,117 INFO L93 Difference]: Finished difference Result 90601 states and 108603 transitions. [2023-12-16 02:24:04,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:24:04,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 440 [2023-12-16 02:24:04,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:24:04,208 INFO L225 Difference]: With dead ends: 90601 [2023-12-16 02:24:04,209 INFO L226 Difference]: Without dead ends: 56954 [2023-12-16 02:24:04,241 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 02:24:04,242 INFO L413 NwaCegarLoop]: 1748 mSDtfsCounter, 3759 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 9355 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3759 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 9618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 9355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-12-16 02:24:04,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3759 Valid, 2101 Invalid, 9618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 9355 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-12-16 02:24:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56954 states. [2023-12-16 02:24:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56954 to 55543. [2023-12-16 02:24:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55543 states, 55542 states have (on average 1.1662345612329408) internal successors, (64775), 55542 states have internal predecessors, (64775), 0 states have call successors, (0), 0 states 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 02:24:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55543 states to 55543 states and 64775 transitions. [2023-12-16 02:24:05,145 INFO L78 Accepts]: Start accepts. Automaton has 55543 states and 64775 transitions. Word has length 440 [2023-12-16 02:24:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:24:05,145 INFO L495 AbstractCegarLoop]: Abstraction has 55543 states and 64775 transitions. [2023-12-16 02:24:05,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states 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 02:24:05,145 INFO L276 IsEmpty]: Start isEmpty. Operand 55543 states and 64775 transitions. [2023-12-16 02:24:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2023-12-16 02:24:05,149 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:24:05,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:24:05,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 02:24:05,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:24:05,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:24:05,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1943082048, now seen corresponding path program 1 times [2023-12-16 02:24:05,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:24:05,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731763457] [2023-12-16 02:24:05,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:24:05,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:24:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:24:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:24:05,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:24:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731763457] [2023-12-16 02:24:05,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731763457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:24:05,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:24:05,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:24:05,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929709163] [2023-12-16 02:24:05,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:24:05,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:24:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:24:05,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:24:05,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:24:05,624 INFO L87 Difference]: Start difference. First operand 55543 states and 64775 transitions. Second operand has 4 states, 4 states have (on average 117.0) internal successors, (468), 3 states have internal predecessors, (468), 0 states have call successors, (0), 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 02:24:10,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:24:10,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:24:10,622 INFO L413 NwaCegarLoop]: 1226 mSDtfsCounter, 1138 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 6297 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 6305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 6297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:24:10,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1138 Valid, 1461 Invalid, 6305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 6297 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-12-16 02:24:10,623 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:24:10,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 02:24:10,624 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (55543states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (70528 states constructed, input type IntersectNwa). [2023-12-16 02:24:10,625 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 02:24:10,627 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:24:10,631 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:24:10,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:24:10 BoogieIcfgContainer [2023-12-16 02:24:10,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:24:10,633 INFO L158 Benchmark]: Toolchain (without parser) took 58381.07ms. Allocated memory was 189.8MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 113.3MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2023-12-16 02:24:10,633 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:24:10,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1938.24ms. Allocated memory was 189.8MB in the beginning and 248.5MB in the end (delta: 58.7MB). Free memory was 113.3MB in the beginning and 99.4MB in the end (delta: 13.9MB). Peak memory consumption was 136.0MB. Max. memory is 8.0GB. [2023-12-16 02:24:10,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 547.80ms. Allocated memory was 248.5MB in the beginning and 446.7MB in the end (delta: 198.2MB). Free memory was 98.9MB in the beginning and 223.1MB in the end (delta: -124.3MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. [2023-12-16 02:24:10,633 INFO L158 Benchmark]: Boogie Preprocessor took 853.66ms. Allocated memory was 446.7MB in the beginning and 893.4MB in the end (delta: 446.7MB). Free memory was 223.1MB in the beginning and 637.4MB in the end (delta: -414.2MB). Peak memory consumption was 109.5MB. Max. memory is 8.0GB. [2023-12-16 02:24:10,633 INFO L158 Benchmark]: RCFGBuilder took 5836.63ms. Allocated memory was 893.4MB in the beginning and 1.7GB in the end (delta: 796.9MB). Free memory was 636.8MB in the beginning and 1.3GB in the end (delta: -683.1MB). Peak memory consumption was 651.7MB. Max. memory is 8.0GB. [2023-12-16 02:24:10,634 INFO L158 Benchmark]: TraceAbstraction took 49197.68ms. Allocated memory was 1.7GB in the beginning and 2.4GB in the end (delta: 690.0MB). Free memory was 1.3GB in the beginning and 1.6GB in the end (delta: -291.0MB). Peak memory consumption was 960.0MB. Max. memory is 8.0GB. [2023-12-16 02:24:10,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1938.24ms. Allocated memory was 189.8MB in the beginning and 248.5MB in the end (delta: 58.7MB). Free memory was 113.3MB in the beginning and 99.4MB in the end (delta: 13.9MB). Peak memory consumption was 136.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 547.80ms. Allocated memory was 248.5MB in the beginning and 446.7MB in the end (delta: 198.2MB). Free memory was 98.9MB in the beginning and 223.1MB in the end (delta: -124.3MB). Peak memory consumption was 75.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 853.66ms. Allocated memory was 446.7MB in the beginning and 893.4MB in the end (delta: 446.7MB). Free memory was 223.1MB in the beginning and 637.4MB in the end (delta: -414.2MB). Peak memory consumption was 109.5MB. Max. memory is 8.0GB. * RCFGBuilder took 5836.63ms. Allocated memory was 893.4MB in the beginning and 1.7GB in the end (delta: 796.9MB). Free memory was 636.8MB in the beginning and 1.3GB in the end (delta: -683.1MB). Peak memory consumption was 651.7MB. Max. memory is 8.0GB. * TraceAbstraction took 49197.68ms. Allocated memory was 1.7GB in the beginning and 2.4GB in the end (delta: 690.0MB). Free memory was 1.3GB in the beginning and 1.6GB in the end (delta: -291.0MB). Peak memory consumption was 960.0MB. 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: 71]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 71). Cancelled while NwaCegarLoop was constructing difference of abstraction (55543states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (70528 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.1s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 44.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16103 SdHoareTripleChecker+Valid, 42.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16103 mSDsluCounter, 14784 SdHoareTripleChecker+Invalid, 35.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1844 mSDsCounter, 5796 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43186 IncrementalHoareTripleChecker+Invalid, 48982 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5796 mSolverCounterUnsat, 12940 mSDtfsCounter, 43186 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55543occurred in iteration=7, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2945 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1447 NumberOfCodeBlocks, 1447 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1439 ConstructedInterpolants, 0 QuantifiedInterpolants, 11350 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 522/522 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