/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.cal159.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 19:05:33,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 19:05:33,577 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 19:05:33,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 19:05:33,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 19:05:33,603 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 19:05:33,603 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 19:05:33,603 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 19:05:33,604 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 19:05:33,607 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 19:05:33,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 19:05:33,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 19:05:33,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 19:05:33,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 19:05:33,609 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 19:05:33,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 19:05:33,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 19:05:33,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 19:05:33,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 19:05:33,610 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 19:05:33,610 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 19:05:33,610 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 19:05:33,611 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 19:05:33,611 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 19:05:33,611 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 19:05:33,611 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 19:05:33,611 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 19:05:33,611 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 19:05:33,611 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 19:05:33,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:05:33,612 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 19:05:33,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 19:05:33,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-16 19:05:33,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 19:05:33,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 19:05:33,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 19:05:33,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 19:05:33,826 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 19:05:33,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal159.c [2023-12-16 19:05:34,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 19:05:35,370 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 19:05:35,371 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.cal159.c [2023-12-16 19:05:35,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b932f4f/b0a64243912440f8b4d93ff4bbbb172a/FLAG6d40b6b8e [2023-12-16 19:05:35,448 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b932f4f/b0a64243912440f8b4d93ff4bbbb172a [2023-12-16 19:05:35,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 19:05:35,452 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 19:05:35,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 19:05:35,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 19:05:35,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 19:05:35,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:05:35" (1/1) ... [2023-12-16 19:05:35,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442007b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:35, skipping insertion in model container [2023-12-16 19:05:35,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 07:05:35" (1/1) ... [2023-12-16 19:05:35,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 19:05:36,031 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.cal159.c[1246,1259] [2023-12-16 19:05:37,399 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:05:37,407 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 19:05:37,415 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.cal159.c[1246,1259] [2023-12-16 19:05:38,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 19:05:38,276 INFO L206 MainTranslator]: Completed translation [2023-12-16 19:05:38,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38 WrapperNode [2023-12-16 19:05:38,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 19:05:38,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 19:05:38,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 19:05:38,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 19:05:38,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:38,634 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:42,863 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64984 [2023-12-16 19:05:42,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 19:05:42,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 19:05:42,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 19:05:42,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 19:05:42,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:42,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:44,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:44,977 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 19:05:44,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:44,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:46,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:46,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:47,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:47,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:48,472 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 19:05:48,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 19:05:48,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 19:05:48,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 19:05:48,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (1/1) ... [2023-12-16 19:05:48,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 19:05:48,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 19:05:48,558 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 19:05:48,560 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 19:05:48,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 19:05:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 19:05:48,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 19:05:48,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 19:05:51,141 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 19:05:51,142 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 19:06:18,671 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 19:06:19,317 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 19:06:19,317 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 19:06:19,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:06:19 BoogieIcfgContainer [2023-12-16 19:06:19,319 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 19:06:19,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 19:06:19,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 19:06:19,324 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 19:06:19,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 07:05:35" (1/3) ... [2023-12-16 19:06:19,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2174465e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:06:19, skipping insertion in model container [2023-12-16 19:06:19,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 07:05:38" (2/3) ... [2023-12-16 19:06:19,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2174465e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 07:06:19, skipping insertion in model container [2023-12-16 19:06:19,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 07:06:19" (3/3) ... [2023-12-16 19:06:19,327 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal159.c [2023-12-16 19:06:19,338 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 19:06:19,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 19:06:19,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 19:06:19,491 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;@300ae7f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 19:06:19,491 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 19:06:19,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 14234 states, 14232 states have (on average 1.6689151208544126) internal successors, (23752), 14233 states have internal predecessors, (23752), 0 states have call successors, (0), 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 19:06:19,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-16 19:06:19,821 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:19,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:19,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:19,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:19,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1947643782, now seen corresponding path program 1 times [2023-12-16 19:06:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:19,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393078933] [2023-12-16 19:06:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:20,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:21,466 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 19:06:21,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:21,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393078933] [2023-12-16 19:06:21,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393078933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:21,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:21,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:06:21,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950977667] [2023-12-16 19:06:21,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:21,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:06:21,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:21,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:06:21,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:06:21,530 INFO L87 Difference]: Start difference. First operand has 14234 states, 14232 states have (on average 1.6689151208544126) internal successors, (23752), 14233 states have internal predecessors, (23752), 0 states have call successors, (0), 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 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 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 19:06:22,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:06:22,147 INFO L93 Difference]: Finished difference Result 28284 states and 47200 transitions. [2023-12-16 19:06:22,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:06:22,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 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 192 [2023-12-16 19:06:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:06:22,198 INFO L225 Difference]: With dead ends: 28284 [2023-12-16 19:06:22,198 INFO L226 Difference]: Without dead ends: 14234 [2023-12-16 19:06:22,214 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 19:06:22,217 INFO L413 NwaCegarLoop]: 23676 mSDtfsCounter, 1 mSDsluCounter, 47347 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71023 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 19:06:22,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71023 Invalid, 13 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:06:22,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2023-12-16 19:06:22,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 14234. [2023-12-16 19:06:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14234 states, 14233 states have (on average 1.663809456895946) internal successors, (23681), 14233 states have internal predecessors, (23681), 0 states have call successors, (0), 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 19:06:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14234 states to 14234 states and 23681 transitions. [2023-12-16 19:06:22,503 INFO L78 Accepts]: Start accepts. Automaton has 14234 states and 23681 transitions. Word has length 192 [2023-12-16 19:06:22,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:06:22,504 INFO L495 AbstractCegarLoop]: Abstraction has 14234 states and 23681 transitions. [2023-12-16 19:06:22,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 0 states have call successors, (0), 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 19:06:22,505 INFO L276 IsEmpty]: Start isEmpty. Operand 14234 states and 23681 transitions. [2023-12-16 19:06:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-16 19:06:22,508 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:22,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:22,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 19:06:22,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:22,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:22,509 INFO L85 PathProgramCache]: Analyzing trace with hash -245629440, now seen corresponding path program 1 times [2023-12-16 19:06:22,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:22,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876748379] [2023-12-16 19:06:22,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:22,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:23,128 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 19:06:23,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:23,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876748379] [2023-12-16 19:06:23,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876748379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:23,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:23,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 19:06:23,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704317198] [2023-12-16 19:06:23,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:23,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 19:06:23,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:23,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 19:06:23,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 19:06:23,130 INFO L87 Difference]: Start difference. First operand 14234 states and 23681 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 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 19:06:23,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:06:23,488 INFO L93 Difference]: Finished difference Result 28287 states and 47060 transitions. [2023-12-16 19:06:23,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 19:06:23,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 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 193 [2023-12-16 19:06:23,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:06:23,535 INFO L225 Difference]: With dead ends: 28287 [2023-12-16 19:06:23,535 INFO L226 Difference]: Without dead ends: 14237 [2023-12-16 19:06:23,554 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 19:06:23,555 INFO L413 NwaCegarLoop]: 23676 mSDtfsCounter, 1 mSDsluCounter, 47345 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71021 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 19:06:23,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71021 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 19:06:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14237 states. [2023-12-16 19:06:23,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14237 to 14236. [2023-12-16 19:06:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14236 states, 14235 states have (on average 1.6637161924833157) internal successors, (23683), 14235 states have internal predecessors, (23683), 0 states have call successors, (0), 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 19:06:23,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14236 states to 14236 states and 23683 transitions. [2023-12-16 19:06:23,916 INFO L78 Accepts]: Start accepts. Automaton has 14236 states and 23683 transitions. Word has length 193 [2023-12-16 19:06:23,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:06:23,916 INFO L495 AbstractCegarLoop]: Abstraction has 14236 states and 23683 transitions. [2023-12-16 19:06:23,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 0 states have call successors, (0), 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 19:06:23,917 INFO L276 IsEmpty]: Start isEmpty. Operand 14236 states and 23683 transitions. [2023-12-16 19:06:23,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-16 19:06:23,918 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:23,919 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:23,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 19:06:23,919 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:23,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:23,919 INFO L85 PathProgramCache]: Analyzing trace with hash 763203154, now seen corresponding path program 1 times [2023-12-16 19:06:23,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:23,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279627410] [2023-12-16 19:06:23,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:23,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:24,843 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 19:06:24,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:24,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279627410] [2023-12-16 19:06:24,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279627410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:24,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:24,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 19:06:24,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63330935] [2023-12-16 19:06:24,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:24,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 19:06:24,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:24,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 19:06:24,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 19:06:24,849 INFO L87 Difference]: Start difference. First operand 14236 states and 23683 transitions. Second operand has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:06:27,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 19:06:27,011 INFO L93 Difference]: Finished difference Result 42431 states and 70588 transitions. [2023-12-16 19:06:27,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:06:27,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 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 194 [2023-12-16 19:06:27,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 19:06:27,101 INFO L225 Difference]: With dead ends: 42431 [2023-12-16 19:06:27,101 INFO L226 Difference]: Without dead ends: 28379 [2023-12-16 19:06:27,120 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 19:06:27,121 INFO L413 NwaCegarLoop]: 23743 mSDtfsCounter, 117134 mSDsluCounter, 70783 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117134 SdHoareTripleChecker+Valid, 94526 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-16 19:06:27,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117134 Valid, 94526 Invalid, 340 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-16 19:06:27,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28379 states. [2023-12-16 19:06:27,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28379 to 14328. [2023-12-16 19:06:27,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14328 states, 14327 states have (on average 1.6636420744049696) internal successors, (23835), 14327 states have internal predecessors, (23835), 0 states have call successors, (0), 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 19:06:27,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14328 states to 14328 states and 23835 transitions. [2023-12-16 19:06:27,486 INFO L78 Accepts]: Start accepts. Automaton has 14328 states and 23835 transitions. Word has length 194 [2023-12-16 19:06:27,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 19:06:27,487 INFO L495 AbstractCegarLoop]: Abstraction has 14328 states and 23835 transitions. [2023-12-16 19:06:27,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.333333333333336) internal successors, (194), 5 states have internal predecessors, (194), 0 states have call successors, (0), 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 19:06:27,489 INFO L276 IsEmpty]: Start isEmpty. Operand 14328 states and 23835 transitions. [2023-12-16 19:06:27,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-12-16 19:06:27,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 19:06:27,497 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 19:06:27,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 19:06:27,497 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 19:06:27,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 19:06:27,498 INFO L85 PathProgramCache]: Analyzing trace with hash -512385562, now seen corresponding path program 1 times [2023-12-16 19:06:27,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 19:06:27,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304482910] [2023-12-16 19:06:27,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 19:06:27,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 19:06:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 19:06:28,505 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 19:06:28,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 19:06:28,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304482910] [2023-12-16 19:06:28,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304482910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 19:06:28,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 19:06:28,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 19:06:28,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978185064] [2023-12-16 19:06:28,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 19:06:28,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 19:06:28,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 19:06:28,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 19:06:28,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-16 19:06:28,508 INFO L87 Difference]: Start difference. First operand 14328 states and 23835 transitions. Second operand has 8 states, 8 states have (on average 24.375) internal successors, (195), 7 states have internal predecessors, (195), 0 states have call successors, (0), 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 19:06:29,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 19:06:29,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2023-12-16 19:06:29,543 INFO L413 NwaCegarLoop]: 11756 mSDtfsCounter, 102602 mSDsluCounter, 24709 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102602 SdHoareTripleChecker+Valid, 36465 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 19:06:29,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102602 Valid, 36465 Invalid, 186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 19:06:29,544 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 19:06:29,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 19:06:29,545 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (14328states) and FLOYD_HOARE automaton (currently 8 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (20715 states constructed, input type IntersectNwa). [2023-12-16 19:06:29,548 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 19:06:29,550 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 19:06:29,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 07:06:29 BoogieIcfgContainer [2023-12-16 19:06:29,551 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 19:06:29,552 INFO L158 Benchmark]: Toolchain (without parser) took 54099.96ms. Allocated memory was 167.8MB in the beginning and 6.4GB in the end (delta: 6.2GB). Free memory was 85.0MB in the beginning and 4.2GB in the end (delta: -4.1GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 19:06:29,552 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 19:06:29,552 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2822.52ms. Allocated memory was 167.8MB in the beginning and 1.0GB in the end (delta: 876.6MB). Free memory was 84.6MB in the beginning and 725.9MB in the end (delta: -641.3MB). Peak memory consumption was 303.7MB. Max. memory is 8.0GB. [2023-12-16 19:06:29,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 4586.24ms. Allocated memory was 1.0GB in the beginning and 5.1GB in the end (delta: 4.0GB). Free memory was 725.9MB in the beginning and 4.0GB in the end (delta: -3.3GB). Peak memory consumption was 903.9MB. Max. memory is 8.0GB. [2023-12-16 19:06:29,553 INFO L158 Benchmark]: Boogie Preprocessor took 5607.75ms. Allocated memory is still 5.1GB. Free memory was 4.0GB in the beginning and 3.6GB in the end (delta: 396.4MB). Peak memory consumption was 422.1MB. Max. memory is 8.0GB. [2023-12-16 19:06:29,553 INFO L158 Benchmark]: RCFGBuilder took 30846.74ms. Allocated memory was 5.1GB in the beginning and 6.2GB in the end (delta: 1.2GB). Free memory was 3.6GB in the beginning and 4.1GB in the end (delta: -492.9MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2023-12-16 19:06:29,553 INFO L158 Benchmark]: TraceAbstraction took 10229.80ms. Allocated memory was 6.2GB in the beginning and 6.4GB in the end (delta: 112.2MB). Free memory was 4.1GB in the beginning and 4.2GB in the end (delta: -86.4MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2023-12-16 19:06:29,554 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 167.8MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2822.52ms. Allocated memory was 167.8MB in the beginning and 1.0GB in the end (delta: 876.6MB). Free memory was 84.6MB in the beginning and 725.9MB in the end (delta: -641.3MB). Peak memory consumption was 303.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 4586.24ms. Allocated memory was 1.0GB in the beginning and 5.1GB in the end (delta: 4.0GB). Free memory was 725.9MB in the beginning and 4.0GB in the end (delta: -3.3GB). Peak memory consumption was 903.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 5607.75ms. Allocated memory is still 5.1GB. Free memory was 4.0GB in the beginning and 3.6GB in the end (delta: 396.4MB). Peak memory consumption was 422.1MB. Max. memory is 8.0GB. * RCFGBuilder took 30846.74ms. Allocated memory was 5.1GB in the beginning and 6.2GB in the end (delta: 1.2GB). Free memory was 3.6GB in the beginning and 4.1GB in the end (delta: -492.9MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * TraceAbstraction took 10229.80ms. Allocated memory was 6.2GB in the beginning and 6.4GB in the end (delta: 112.2MB). Free memory was 4.1GB in the beginning and 4.2GB in the end (delta: -86.4MB). Peak memory consumption was 26.8MB. 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 (14328states) and FLOYD_HOARE automaton (currently 8 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (20715 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14234 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 219738 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 219738 mSDsluCounter, 273035 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 190184 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 553 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 82851 mSDtfsCounter, 553 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14328occurred in iteration=3, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 14052 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 770 ConstructedInterpolants, 0 QuantifiedInterpolants, 1635 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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