/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 19:20:36,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 19:20:36,865 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 19:20:36,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 19:20:36,870 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 19:20:36,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 19:20:36,894 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 19:20:36,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 19:20:36,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 19:20:36,898 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 19:20:36,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 19:20:36,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 19:20:36,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 19:20:36,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 19:20:36,900 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 19:20:36,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 19:20:36,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 19:20:36,900 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 19:20:36,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 19:20:36,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 19:20:36,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 19:20:36,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 19:20:36,902 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 19:20:36,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 19:20:36,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 19:20:36,903 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 19:20:36,903 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 19:20:36,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 19:20:36,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 19:20:36,904 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 19:20:36,904 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 19:20:36,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:20:36,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 19:20:36,905 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 19:20:36,906 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 19:20:36,906 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 19:20:36,906 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 19:20:36,906 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 19:20:37,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 19:20:37,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 19:20:37,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 19:20:37,128 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 19:20:37,128 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 19:20:37,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label54.c [2023-12-15 19:20:38,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 19:20:38,670 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 19:20:38,671 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label54.c [2023-12-15 19:20:38,713 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fbc0277/0cf01dcf4597409a8d9d39dcca17d58f/FLAG85dc778d7 [2023-12-15 19:20:38,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8fbc0277/0cf01dcf4597409a8d9d39dcca17d58f [2023-12-15 19:20:38,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 19:20:38,797 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 19:20:38,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 19:20:38,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 19:20:38,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 19:20:38,802 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:20:38" (1/1) ... [2023-12-15 19:20:38,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385609e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:38, skipping insertion in model container [2023-12-15 19:20:38,803 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 07:20:38" (1/1) ... [2023-12-15 19:20:38,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 19:20:39,123 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_label54.c[8269,8282] [2023-12-15 19:20:39,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:20:39,956 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 19:20:40,018 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_label54.c[8269,8282] [2023-12-15 19:20:40,570 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 19:20:40,593 INFO L206 MainTranslator]: Completed translation [2023-12-15 19:20:40,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40 WrapperNode [2023-12-15 19:20:40,594 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 19:20:40,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 19:20:40,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 19:20:40,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 19:20:40,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:40,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:41,389 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2023-12-15 19:20:41,389 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 19:20:41,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 19:20:41,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 19:20:41,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 19:20:41,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:41,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:41,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:41,779 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 19:20:41,779 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:41,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:42,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:42,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:42,098 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:42,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:42,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 19:20:42,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 19:20:42,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 19:20:42,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 19:20:42,267 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (1/1) ... [2023-12-15 19:20:42,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 19:20:42,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:20:42,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 19:20:42,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 19:20:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 19:20:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 19:20:42,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 19:20:42,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 19:20:42,368 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 19:20:42,370 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 19:20:47,978 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 19:20:48,053 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 19:20:48,053 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 19:20:48,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:20:48 BoogieIcfgContainer [2023-12-15 19:20:48,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 19:20:48,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 19:20:48,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 19:20:48,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 19:20:48,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 07:20:38" (1/3) ... [2023-12-15 19:20:48,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788c9e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:20:48, skipping insertion in model container [2023-12-15 19:20:48,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 07:20:40" (2/3) ... [2023-12-15 19:20:48,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788c9e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 07:20:48, skipping insertion in model container [2023-12-15 19:20:48,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 07:20:48" (3/3) ... [2023-12-15 19:20:48,060 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label54.c [2023-12-15 19:20:48,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 19:20:48,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 19:20:48,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 19:20:48,142 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;@55b464c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 19:20:48,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 19:20:48,151 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) [2023-12-15 19:20:48,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 19:20:48,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:48,160 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] [2023-12-15 19:20:48,160 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:48,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:48,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1582150121, now seen corresponding path program 1 times [2023-12-15 19:20:48,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:48,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810778626] [2023-12-15 19:20:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:48,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:48,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:48,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810778626] [2023-12-15 19:20:48,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810778626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:48,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:48,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:20:48,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366630167] [2023-12-15 19:20:48,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:48,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 19:20:48,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:48,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 19:20:48,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:20:48,378 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 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:48,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:48,470 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2023-12-15 19:20:48,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 19:20:48,475 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2023-12-15 19:20:48,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:48,499 INFO L225 Difference]: With dead ends: 3371 [2023-12-15 19:20:48,500 INFO L226 Difference]: Without dead ends: 1684 [2023-12-15 19:20:48,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 19:20:48,509 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 [2023-12-15 19:20:48,509 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] [2023-12-15 19:20:48,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2023-12-15 19:20:48,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2023-12-15 19:20:48,601 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) [2023-12-15 19:20:48,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2023-12-15 19:20:48,606 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 63 [2023-12-15 19:20:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:48,606 INFO L495 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2023-12-15 19:20:48,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.5) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2023-12-15 19:20:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-15 19:20:48,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:48,608 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] [2023-12-15 19:20:48,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 19:20:48,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:48,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:48,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1008379227, now seen corresponding path program 1 times [2023-12-15 19:20:48,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:48,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243991612] [2023-12-15 19:20:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:48,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:20:48,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:48,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243991612] [2023-12-15 19:20:48,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243991612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:48,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:48,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312696230] [2023-12-15 19:20:48,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:48,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:20:48,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:48,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:20:48,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:48,942 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:58,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:20:58,498 INFO L93 Difference]: Finished difference Result 6152 states and 11658 transitions. [2023-12-15 19:20:58,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:20:58,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-12-15 19:20:58,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:20:58,514 INFO L225 Difference]: With dead ends: 6152 [2023-12-15 19:20:58,514 INFO L226 Difference]: Without dead ends: 4469 [2023-12-15 19:20:58,516 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 [2023-12-15 19:20:58,518 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 4508 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 6996 mSolverCounterSat, 3571 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4508 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 10567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3571 IncrementalHoareTripleChecker+Valid, 6996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:20:58,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4508 Valid, 968 Invalid, 10567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3571 Valid, 6996 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-12-15 19:20:58,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4469 states. [2023-12-15 19:20:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4469 to 4466. [2023-12-15 19:20:58,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4465 states have (on average 1.5686450167973125) internal successors, (7004), 4465 states have internal predecessors, (7004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 7004 transitions. [2023-12-15 19:20:58,585 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 7004 transitions. Word has length 63 [2023-12-15 19:20:58,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:20:58,586 INFO L495 AbstractCegarLoop]: Abstraction has 4466 states and 7004 transitions. [2023-12-15 19:20:58,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:20:58,587 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 7004 transitions. [2023-12-15 19:20:58,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-15 19:20:58,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:20:58,598 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:20:58,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 19:20:58,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:20:58,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:20:58,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1526068064, now seen corresponding path program 1 times [2023-12-15 19:20:58,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:20:58,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276443013] [2023-12-15 19:20:58,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:20:58,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:20:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:20:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-15 19:20:59,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:20:59,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276443013] [2023-12-15 19:20:59,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276443013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:20:59,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:20:59,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:20:59,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006900580] [2023-12-15 19:20:59,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:20:59,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:20:59,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:20:59,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:20:59,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:20:59,374 INFO L87 Difference]: Start difference. First operand 4466 states and 7004 transitions. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:08,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:21:08,852 INFO L93 Difference]: Finished difference Result 11708 states and 20251 transitions. [2023-12-15 19:21:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:21:08,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 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 337 [2023-12-15 19:21:08,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:21:08,876 INFO L225 Difference]: With dead ends: 11708 [2023-12-15 19:21:08,876 INFO L226 Difference]: Without dead ends: 8608 [2023-12-15 19:21:08,883 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 [2023-12-15 19:21:08,884 INFO L413 NwaCegarLoop]: 1802 mSDtfsCounter, 3755 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 9458 mSolverCounterSat, 1343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 10801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1343 IncrementalHoareTripleChecker+Valid, 9458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:08,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 2156 Invalid, 10801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1343 Valid, 9458 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2023-12-15 19:21:08,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8608 states. [2023-12-15 19:21:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8608 to 8594. [2023-12-15 19:21:09,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8594 states, 8593 states have (on average 1.3509833585476552) internal successors, (11609), 8593 states have internal predecessors, (11609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8594 states to 8594 states and 11609 transitions. [2023-12-15 19:21:09,022 INFO L78 Accepts]: Start accepts. Automaton has 8594 states and 11609 transitions. Word has length 337 [2023-12-15 19:21:09,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:21:09,026 INFO L495 AbstractCegarLoop]: Abstraction has 8594 states and 11609 transitions. [2023-12-15 19:21:09,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 8594 states and 11609 transitions. [2023-12-15 19:21:09,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2023-12-15 19:21:09,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:21:09,034 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:09,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 19:21:09,034 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:21:09,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:21:09,035 INFO L85 PathProgramCache]: Analyzing trace with hash -423210810, now seen corresponding path program 1 times [2023-12-15 19:21:09,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:21:09,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872925372] [2023-12-15 19:21:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:09,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:21:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:09,583 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-15 19:21:09,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:21:09,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872925372] [2023-12-15 19:21:09,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872925372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:21:09,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:21:09,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 19:21:09,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109134273] [2023-12-15 19:21:09,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:21:09,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 19:21:09,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:21:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 19:21:09,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 19:21:09,585 INFO L87 Difference]: Start difference. First operand 8594 states and 11609 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:21:14,785 INFO L93 Difference]: Finished difference Result 14488 states and 20500 transitions. [2023-12-15 19:21:14,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 19:21:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 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 365 [2023-12-15 19:21:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:21:14,805 INFO L225 Difference]: With dead ends: 14488 [2023-12-15 19:21:14,805 INFO L226 Difference]: Without dead ends: 8594 [2023-12-15 19:21:14,814 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 [2023-12-15 19:21:14,821 INFO L413 NwaCegarLoop]: 1774 mSDtfsCounter, 1151 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5717 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 5725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:14,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1952 Invalid, 5725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5717 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-15 19:21:14,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8594 states. [2023-12-15 19:21:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8594 to 8594. [2023-12-15 19:21:14,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8594 states, 8593 states have (on average 1.3494704992435704) internal successors, (11596), 8593 states have internal predecessors, (11596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8594 states to 8594 states and 11596 transitions. [2023-12-15 19:21:14,940 INFO L78 Accepts]: Start accepts. Automaton has 8594 states and 11596 transitions. Word has length 365 [2023-12-15 19:21:14,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:21:14,941 INFO L495 AbstractCegarLoop]: Abstraction has 8594 states and 11596 transitions. [2023-12-15 19:21:14,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8594 states and 11596 transitions. [2023-12-15 19:21:14,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2023-12-15 19:21:14,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:21:14,948 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:14,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 19:21:14,949 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:21:14,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:21:14,949 INFO L85 PathProgramCache]: Analyzing trace with hash 267424301, now seen corresponding path program 1 times [2023-12-15 19:21:14,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:21:14,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019161393] [2023-12-15 19:21:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:14,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:21:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:15,714 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 145 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:21:15,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:21:15,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019161393] [2023-12-15 19:21:15,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019161393] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:21:15,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895482065] [2023-12-15 19:21:15,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:15,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:21:15,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:21:15,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:21:15,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 19:21:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:15,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:21:15,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:21:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:21:16,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:21:16,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895482065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:21:16,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:21:16,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-15 19:21:16,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480538394] [2023-12-15 19:21:16,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:21:16,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:21:16,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:21:16,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:21:16,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:21:16,039 INFO L87 Difference]: Start difference. First operand 8594 states and 11596 transitions. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:21,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:21:21,589 INFO L93 Difference]: Finished difference Result 19938 states and 28771 transitions. [2023-12-15 19:21:21,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:21:21,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 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 617 [2023-12-15 19:21:21,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:21:21,667 INFO L225 Difference]: With dead ends: 19938 [2023-12-15 19:21:21,667 INFO L226 Difference]: Without dead ends: 14075 [2023-12-15 19:21:21,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 620 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:21:21,684 INFO L413 NwaCegarLoop]: 1368 mSDtfsCounter, 1742 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 3872 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 5600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 3872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:21,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 1506 Invalid, 5600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1728 Valid, 3872 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-15 19:21:21,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14075 states. [2023-12-15 19:21:21,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14075 to 14075. [2023-12-15 19:21:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14075 states, 14074 states have (on average 1.271706693193122) internal successors, (17898), 14074 states have internal predecessors, (17898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14075 states to 14075 states and 17898 transitions. [2023-12-15 19:21:21,855 INFO L78 Accepts]: Start accepts. Automaton has 14075 states and 17898 transitions. Word has length 617 [2023-12-15 19:21:21,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:21:21,856 INFO L495 AbstractCegarLoop]: Abstraction has 14075 states and 17898 transitions. [2023-12-15 19:21:21,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 14075 states and 17898 transitions. [2023-12-15 19:21:21,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2023-12-15 19:21:21,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:21:21,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:21,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 19:21:22,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:21:22,077 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:21:22,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:21:22,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1901858879, now seen corresponding path program 1 times [2023-12-15 19:21:22,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:21:22,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695134832] [2023-12-15 19:21:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:22,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:21:22,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 145 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:21:22,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:21:22,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695134832] [2023-12-15 19:21:22,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695134832] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:21:22,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544711445] [2023-12-15 19:21:22,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:22,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:21:22,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:21:22,826 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:21:22,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 19:21:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:22,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:21:22,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:21:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:21:23,063 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:21:23,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544711445] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:21:23,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:21:23,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-15 19:21:23,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109072433] [2023-12-15 19:21:23,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:21:23,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:21:23,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:21:23,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:21:23,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:21:23,065 INFO L87 Difference]: Start difference. First operand 14075 states and 17898 transitions. Second operand has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:21:27,926 INFO L93 Difference]: Finished difference Result 36342 states and 47664 transitions. [2023-12-15 19:21:27,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:21:27,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 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 619 [2023-12-15 19:21:27,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:21:27,974 INFO L225 Difference]: With dead ends: 36342 [2023-12-15 19:21:27,974 INFO L226 Difference]: Without dead ends: 24998 [2023-12-15 19:21:27,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 19:21:27,989 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 2530 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4032 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 5504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 4032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:27,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2530 Valid, 792 Invalid, 5504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 4032 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-12-15 19:21:28,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24998 states. [2023-12-15 19:21:28,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24998 to 23630. [2023-12-15 19:21:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23630 states, 23629 states have (on average 1.2681873968428625) internal successors, (29966), 23629 states have internal predecessors, (29966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:28,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23630 states to 23630 states and 29966 transitions. [2023-12-15 19:21:28,231 INFO L78 Accepts]: Start accepts. Automaton has 23630 states and 29966 transitions. Word has length 619 [2023-12-15 19:21:28,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:21:28,231 INFO L495 AbstractCegarLoop]: Abstraction has 23630 states and 29966 transitions. [2023-12-15 19:21:28,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:28,232 INFO L276 IsEmpty]: Start isEmpty. Operand 23630 states and 29966 transitions. [2023-12-15 19:21:28,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2023-12-15 19:21:28,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:21:28,242 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:28,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 19:21:28,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-15 19:21:28,448 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:21:28,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:21:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1131614907, now seen corresponding path program 1 times [2023-12-15 19:21:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:21:28,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797850500] [2023-12-15 19:21:28,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:28,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:21:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-12-15 19:21:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:21:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797850500] [2023-12-15 19:21:28,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797850500] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:21:28,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 19:21:28,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 19:21:28,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751564187] [2023-12-15 19:21:28,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:21:28,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:21:28,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:21:28,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:21:28,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:21:28,848 INFO L87 Difference]: Start difference. First operand 23630 states and 29966 transitions. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 2 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:34,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 19:21:34,346 INFO L93 Difference]: Finished difference Result 50001 states and 65071 transitions. [2023-12-15 19:21:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:21:34,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 2 states have internal predecessors, (558), 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 702 [2023-12-15 19:21:34,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 19:21:34,402 INFO L225 Difference]: With dead ends: 50001 [2023-12-15 19:21:34,402 INFO L226 Difference]: Without dead ends: 29102 [2023-12-15 19:21:34,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 19:21:34,424 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 1372 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 3926 mSolverCounterSat, 2117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 6043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2117 IncrementalHoareTripleChecker+Valid, 3926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:34,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 702 Invalid, 6043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2117 Valid, 3926 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-15 19:21:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29102 states. [2023-12-15 19:21:34,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29102 to 29093. [2023-12-15 19:21:34,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29093 states, 29092 states have (on average 1.25635913653238) internal successors, (36550), 29092 states have internal predecessors, (36550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29093 states to 29093 states and 36550 transitions. [2023-12-15 19:21:34,703 INFO L78 Accepts]: Start accepts. Automaton has 29093 states and 36550 transitions. Word has length 702 [2023-12-15 19:21:34,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 19:21:34,703 INFO L495 AbstractCegarLoop]: Abstraction has 29093 states and 36550 transitions. [2023-12-15 19:21:34,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 2 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 19:21:34,704 INFO L276 IsEmpty]: Start isEmpty. Operand 29093 states and 36550 transitions. [2023-12-15 19:21:34,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2023-12-15 19:21:34,708 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 19:21:34,709 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:34,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 19:21:34,709 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 19:21:34,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 19:21:34,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1130103318, now seen corresponding path program 1 times [2023-12-15 19:21:34,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 19:21:34,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912784531] [2023-12-15 19:21:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:34,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 19:21:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 123 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 19:21:36,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 19:21:36,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912784531] [2023-12-15 19:21:36,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912784531] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 19:21:36,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222446013] [2023-12-15 19:21:36,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 19:21:36,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:21:36,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 19:21:36,717 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 19:21:36,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 19:21:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 19:21:36,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 19:21:36,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 19:21:37,011 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-12-15 19:21:37,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 19:21:37,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222446013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 19:21:37,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 19:21:37,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-12-15 19:21:37,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935788743] [2023-12-15 19:21:37,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 19:21:37,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 19:21:37,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 19:21:37,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 19:21:37,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 19:21:37,015 INFO L87 Difference]: Start difference. First operand 29093 states and 36550 transitions. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-15 19:21:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 19:21:41,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-15 19:21:41,096 INFO L413 NwaCegarLoop]: 2470 mSDtfsCounter, 995 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 3700 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 2570 SdHoareTripleChecker+Invalid, 4264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 3700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-12-15 19:21:41,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 2570 Invalid, 4264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 3700 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-12-15 19:21:41,097 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 19:21:41,104 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 19:21:41,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 19:21:41,131 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 19:21:41,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 19:21:41,298 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (29093states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (35815 states constructed, input type IntersectNwa). [2023-12-15 19:21:41,303 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 19:21:41,305 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 19:21:41,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 07:21:41 BoogieIcfgContainer [2023-12-15 19:21:41,306 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 19:21:41,306 INFO L158 Benchmark]: Toolchain (without parser) took 62509.77ms. Allocated memory was 176.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 105.8MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 948.5MB. Max. memory is 8.0GB. [2023-12-15 19:21:41,306 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 176.2MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 19:21:41,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1795.36ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 105.8MB in the beginning and 143.4MB in the end (delta: -37.7MB). Peak memory consumption was 106.7MB. Max. memory is 8.0GB. [2023-12-15 19:21:41,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 794.63ms. Allocated memory was 268.4MB in the beginning and 455.1MB in the end (delta: 186.6MB). Free memory was 143.4MB in the beginning and 288.4MB in the end (delta: -144.9MB). Peak memory consumption was 133.2MB. Max. memory is 8.0GB. [2023-12-15 19:21:41,307 INFO L158 Benchmark]: Boogie Preprocessor took 876.21ms. Allocated memory was 455.1MB in the beginning and 718.3MB in the end (delta: 263.2MB). Free memory was 288.4MB in the beginning and 496.1MB in the end (delta: -207.7MB). Peak memory consumption was 137.6MB. Max. memory is 8.0GB. [2023-12-15 19:21:41,308 INFO L158 Benchmark]: RCFGBuilder took 5787.43ms. Allocated memory was 718.3MB in the beginning and 1.7GB in the end (delta: 984.6MB). Free memory was 496.1MB in the beginning and 1.1GB in the end (delta: -576.5MB). Peak memory consumption was 409.1MB. Max. memory is 8.0GB. [2023-12-15 19:21:41,308 INFO L158 Benchmark]: TraceAbstraction took 53250.82ms. Allocated memory was 1.7GB in the beginning and 2.9GB in the end (delta: 1.2GB). Free memory was 1.1GB in the beginning and 1.9GB in the end (delta: -792.7MB). Peak memory consumption was 388.5MB. Max. memory is 8.0GB. [2023-12-15 19:21:41,309 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 176.2MB. Free memory is still 134.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1795.36ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 105.8MB in the beginning and 143.4MB in the end (delta: -37.7MB). Peak memory consumption was 106.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 794.63ms. Allocated memory was 268.4MB in the beginning and 455.1MB in the end (delta: 186.6MB). Free memory was 143.4MB in the beginning and 288.4MB in the end (delta: -144.9MB). Peak memory consumption was 133.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 876.21ms. Allocated memory was 455.1MB in the beginning and 718.3MB in the end (delta: 263.2MB). Free memory was 288.4MB in the beginning and 496.1MB in the end (delta: -207.7MB). Peak memory consumption was 137.6MB. Max. memory is 8.0GB. * RCFGBuilder took 5787.43ms. Allocated memory was 718.3MB in the beginning and 1.7GB in the end (delta: 984.6MB). Free memory was 496.1MB in the beginning and 1.1GB in the end (delta: -576.5MB). Peak memory consumption was 409.1MB. Max. memory is 8.0GB. * TraceAbstraction took 53250.82ms. Allocated memory was 1.7GB in the beginning and 2.9GB in the end (delta: 1.2GB). Free memory was 1.1GB in the beginning and 1.9GB in the end (delta: -792.7MB). Peak memory consumption was 388.5MB. 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: 218]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 218). Cancelled while NwaCegarLoop was constructing difference of abstraction (29093states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (35815 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1686 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.2s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 44.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16053 SdHoareTripleChecker+Valid, 42.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16053 mSDsluCounter, 13784 SdHoareTripleChecker+Invalid, 35.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1199 mSDsCounter, 10803 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37703 IncrementalHoareTripleChecker+Invalid, 48506 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10803 mSolverCounterUnsat, 12585 mSDtfsCounter, 37703 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2031 GetRequests, 2008 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29093occurred in iteration=7, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 1394 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 5540 NumberOfCodeBlocks, 5540 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5529 ConstructedInterpolants, 0 QuantifiedInterpolants, 40850 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2333 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 1902/2206 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