/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 02:15:53,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 02:15:53,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 02:15:53,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 02:15:53,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 02:15:53,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 02:15:53,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 02:15:53,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 02:15:53,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 02:15:53,239 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 02:15:53,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 02:15:53,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 02:15:53,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 02:15:53,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 02:15:53,242 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 02:15:53,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 02:15:53,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 02:15:53,242 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 02:15:53,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 02:15:53,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 02:15:53,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 02:15:53,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 02:15:53,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 02:15:53,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 02:15:53,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 02:15:53,243 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 02:15:53,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 02:15:53,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 02:15:53,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 02:15:53,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 02:15:53,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 02:15:53,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 02:15:53,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:15:53,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 02:15:53,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 02:15:53,246 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 02:15:53,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 02:15:53,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 02:15:53,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 02:15:53,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 02:15:53,456 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 02:15:53,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label49.c [2023-12-16 02:15:54,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 02:15:54,824 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 02:15:54,824 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label49.c [2023-12-16 02:15:54,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0329b7d5e/66622166ccb940e49adb319dc89ed39f/FLAG0405ed9be [2023-12-16 02:15:54,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0329b7d5e/66622166ccb940e49adb319dc89ed39f [2023-12-16 02:15:54,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 02:15:54,862 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 02:15:54,864 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 02:15:54,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 02:15:54,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 02:15:54,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:15:54" (1/1) ... [2023-12-16 02:15:54,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f14089a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:54, skipping insertion in model container [2023-12-16 02:15:54,869 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 02:15:54" (1/1) ... [2023-12-16 02:15:54,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 02:15:55,103 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/Problem17_label49.c[2362,2375] [2023-12-16 02:15:55,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:15:55,489 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 02:15:55,506 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/Problem17_label49.c[2362,2375] [2023-12-16 02:15:55,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 02:15:55,689 INFO L206 MainTranslator]: Completed translation [2023-12-16 02:15:55,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55 WrapperNode [2023-12-16 02:15:55,689 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 02:15:55,690 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 02:15:55,690 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 02:15:55,691 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 02:15:55,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:55,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,090 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2023-12-16 02:15:56,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 02:15:56,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 02:15:56,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 02:15:56,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 02:15:56,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,148 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,229 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 02:15:56,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,364 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 02:15:56,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 02:15:56,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 02:15:56,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 02:15:56,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (1/1) ... [2023-12-16 02:15:56,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 02:15:56,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:15:56,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 02:15:56,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 02:15:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 02:15:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 02:15:56,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 02:15:56,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 02:15:56,521 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 02:15:56,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 02:15:58,958 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 02:15:58,989 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 02:15:58,989 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 02:15:58,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:15:58 BoogieIcfgContainer [2023-12-16 02:15:58,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 02:15:58,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 02:15:58,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 02:15:58,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 02:15:58,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 02:15:54" (1/3) ... [2023-12-16 02:15:58,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d51deae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:15:58, skipping insertion in model container [2023-12-16 02:15:58,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 02:15:55" (2/3) ... [2023-12-16 02:15:58,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d51deae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 02:15:58, skipping insertion in model container [2023-12-16 02:15:58,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 02:15:58" (3/3) ... [2023-12-16 02:15:58,995 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label49.c [2023-12-16 02:15:59,007 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 02:15:59,007 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 02:15:59,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 02:15:59,047 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;@1e7acb74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 02:15:59,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 02:15:59,051 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-16 02:15:59,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:59,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:15:59,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:59,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:59,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1438677573, now seen corresponding path program 1 times [2023-12-16 02:15:59,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:59,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443204909] [2023-12-16 02:15:59,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:59,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:59,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:59,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443204909] [2023-12-16 02:15:59,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443204909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:59,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:59,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:15:59,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634565816] [2023-12-16 02:15:59,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:59,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 02:15:59,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:59,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 02:15:59,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:15:59,177 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:15:59,226 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-16 02:15:59,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 02:15:59,234 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-16 02:15:59,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:15:59,246 INFO L225 Difference]: With dead ends: 1055 [2023-12-16 02:15:59,246 INFO L226 Difference]: Without dead ends: 526 [2023-12-16 02:15:59,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 02:15:59,252 INFO L413 NwaCegarLoop]: 935 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, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 02:15:59,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 02:15:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-16 02:15:59,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-16 02:15:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-16 02:15:59,300 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 14 [2023-12-16 02:15:59,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:15:59,300 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-16 02:15:59,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:15:59,300 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-16 02:15:59,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-16 02:15:59,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:15:59,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:15:59,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 02:15:59,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:15:59,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:15:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1933770537, now seen corresponding path program 1 times [2023-12-16 02:15:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:15:59,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502941667] [2023-12-16 02:15:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:15:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:15:59,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:15:59,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:15:59,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:15:59,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502941667] [2023-12-16 02:15:59,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502941667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:15:59,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:15:59,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:15:59,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593539889] [2023-12-16 02:15:59,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:15:59,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:15:59,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:15:59,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:15:59,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:15:59,361 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:01,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:01,591 INFO L93 Difference]: Finished difference Result 1501 states and 2698 transitions. [2023-12-16 02:16:01,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:01,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-12-16 02:16:01,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:01,596 INFO L225 Difference]: With dead ends: 1501 [2023-12-16 02:16:01,596 INFO L226 Difference]: Without dead ends: 976 [2023-12-16 02:16:01,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:01,599 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 457 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:01,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 448 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-16 02:16:01,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-12-16 02:16:01,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 970. [2023-12-16 02:16:01,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 969 states have (on average 1.5541795665634675) internal successors, (1506), 969 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1506 transitions. [2023-12-16 02:16:01,677 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1506 transitions. Word has length 14 [2023-12-16 02:16:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:01,696 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1506 transitions. [2023-12-16 02:16:01,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:01,696 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1506 transitions. [2023-12-16 02:16:01,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-16 02:16:01,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:01,700 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:01,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 02:16:01,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:01,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:01,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1651561506, now seen corresponding path program 1 times [2023-12-16 02:16:01,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:01,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136951826] [2023-12-16 02:16:01,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:01,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:01,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:01,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:01,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136951826] [2023-12-16 02:16:01,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136951826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:01,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:01,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:16:01,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089337052] [2023-12-16 02:16:01,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:01,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:01,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:01,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:01,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:01,958 INFO L87 Difference]: Start difference. First operand 970 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:03,914 INFO L93 Difference]: Finished difference Result 2814 states and 4381 transitions. [2023-12-16 02:16:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:03,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 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 81 [2023-12-16 02:16:03,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:03,921 INFO L225 Difference]: With dead ends: 2814 [2023-12-16 02:16:03,921 INFO L226 Difference]: Without dead ends: 1845 [2023-12-16 02:16:03,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:03,925 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:03,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 578 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 02:16:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2023-12-16 02:16:03,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1840. [2023-12-16 02:16:03,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 1839 states have (on average 1.3507340946166395) internal successors, (2484), 1839 states have internal predecessors, (2484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 2484 transitions. [2023-12-16 02:16:03,959 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 2484 transitions. Word has length 81 [2023-12-16 02:16:03,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:03,963 INFO L495 AbstractCegarLoop]: Abstraction has 1840 states and 2484 transitions. [2023-12-16 02:16:03,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:03,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 2484 transitions. [2023-12-16 02:16:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-16 02:16:03,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:03,968 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:03,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 02:16:03,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:03,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:03,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1552889564, now seen corresponding path program 1 times [2023-12-16 02:16:03,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:03,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387484631] [2023-12-16 02:16:03,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:03,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:04,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:04,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387484631] [2023-12-16 02:16:04,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387484631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:04,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:04,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:04,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437933457] [2023-12-16 02:16:04,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:04,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:04,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:04,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:04,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:04,253 INFO L87 Difference]: Start difference. First operand 1840 states and 2484 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:07,521 INFO L93 Difference]: Finished difference Result 6764 states and 9261 transitions. [2023-12-16 02:16:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2023-12-16 02:16:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:07,554 INFO L225 Difference]: With dead ends: 6764 [2023-12-16 02:16:07,554 INFO L226 Difference]: Without dead ends: 4925 [2023-12-16 02:16:07,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:07,583 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 897 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2790 mSolverCounterSat, 594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 594 IncrementalHoareTripleChecker+Valid, 2790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:07,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 326 Invalid, 3384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [594 Valid, 2790 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 02:16:07,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2023-12-16 02:16:07,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 4874. [2023-12-16 02:16:07,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4874 states, 4873 states have (on average 1.2866817155756207) internal successors, (6270), 4873 states have internal predecessors, (6270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:07,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4874 states to 4874 states and 6270 transitions. [2023-12-16 02:16:07,648 INFO L78 Accepts]: Start accepts. Automaton has 4874 states and 6270 transitions. Word has length 84 [2023-12-16 02:16:07,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:07,649 INFO L495 AbstractCegarLoop]: Abstraction has 4874 states and 6270 transitions. [2023-12-16 02:16:07,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:07,650 INFO L276 IsEmpty]: Start isEmpty. Operand 4874 states and 6270 transitions. [2023-12-16 02:16:07,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 02:16:07,655 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:07,655 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:07,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 02:16:07,656 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:07,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:07,656 INFO L85 PathProgramCache]: Analyzing trace with hash 630957273, now seen corresponding path program 1 times [2023-12-16 02:16:07,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:07,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047175198] [2023-12-16 02:16:07,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:07,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:07,839 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-12-16 02:16:07,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:07,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047175198] [2023-12-16 02:16:07,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047175198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:07,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:07,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:16:07,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469352924] [2023-12-16 02:16:07,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:07,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:07,840 INFO L87 Difference]: Start difference. First operand 4874 states and 6270 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:09,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:09,447 INFO L93 Difference]: Finished difference Result 14435 states and 18543 transitions. [2023-12-16 02:16:09,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:09,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 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 155 [2023-12-16 02:16:09,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:09,492 INFO L225 Difference]: With dead ends: 14435 [2023-12-16 02:16:09,492 INFO L226 Difference]: Without dead ends: 8276 [2023-12-16 02:16:09,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:09,503 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 386 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:09,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 588 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 02:16:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8276 states. [2023-12-16 02:16:09,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8276 to 6143. [2023-12-16 02:16:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6143 states, 6142 states have (on average 1.1909801367632693) internal successors, (7315), 6142 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6143 states to 6143 states and 7315 transitions. [2023-12-16 02:16:09,586 INFO L78 Accepts]: Start accepts. Automaton has 6143 states and 7315 transitions. Word has length 155 [2023-12-16 02:16:09,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:09,587 INFO L495 AbstractCegarLoop]: Abstraction has 6143 states and 7315 transitions. [2023-12-16 02:16:09,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:09,587 INFO L276 IsEmpty]: Start isEmpty. Operand 6143 states and 7315 transitions. [2023-12-16 02:16:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-16 02:16:09,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:09,588 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:09,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 02:16:09,588 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:09,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:09,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1282137387, now seen corresponding path program 1 times [2023-12-16 02:16:09,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:09,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081298276] [2023-12-16 02:16:09,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:09,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 02:16:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:09,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081298276] [2023-12-16 02:16:09,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081298276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:09,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:09,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:09,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382234686] [2023-12-16 02:16:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:09,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:09,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:09,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:09,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:09,765 INFO L87 Difference]: Start difference. First operand 6143 states and 7315 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:11,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:11,695 INFO L93 Difference]: Finished difference Result 15305 states and 18461 transitions. [2023-12-16 02:16:11,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:11,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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 168 [2023-12-16 02:16:11,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:11,716 INFO L225 Difference]: With dead ends: 15305 [2023-12-16 02:16:11,717 INFO L226 Difference]: Without dead ends: 9163 [2023-12-16 02:16:11,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:11,724 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 501 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:11,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 452 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-16 02:16:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9163 states. [2023-12-16 02:16:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9163 to 8290. [2023-12-16 02:16:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8290 states, 8289 states have (on average 1.216069489685125) internal successors, (10080), 8289 states have internal predecessors, (10080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:11,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 10080 transitions. [2023-12-16 02:16:11,824 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 10080 transitions. Word has length 168 [2023-12-16 02:16:11,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:11,825 INFO L495 AbstractCegarLoop]: Abstraction has 8290 states and 10080 transitions. [2023-12-16 02:16:11,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 10080 transitions. [2023-12-16 02:16:11,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 02:16:11,827 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:11,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:11,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 02:16:11,828 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:11,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:11,828 INFO L85 PathProgramCache]: Analyzing trace with hash -492920889, now seen corresponding path program 1 times [2023-12-16 02:16:11,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:11,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472332233] [2023-12-16 02:16:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:11,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 02:16:11,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:11,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472332233] [2023-12-16 02:16:11,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472332233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:11,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:11,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:11,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895686898] [2023-12-16 02:16:11,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:11,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:11,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:11,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:11,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:11,952 INFO L87 Difference]: Start difference. First operand 8290 states and 10080 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:13,566 INFO L93 Difference]: Finished difference Result 21258 states and 26394 transitions. [2023-12-16 02:16:13,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:13,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 171 [2023-12-16 02:16:13,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:13,598 INFO L225 Difference]: With dead ends: 21258 [2023-12-16 02:16:13,598 INFO L226 Difference]: Without dead ends: 12969 [2023-12-16 02:16:13,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:13,608 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 490 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:13,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 796 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 02:16:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12969 states. [2023-12-16 02:16:13,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12969 to 12969. [2023-12-16 02:16:13,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12969 states, 12968 states have (on average 1.198180135718692) internal successors, (15538), 12968 states have internal predecessors, (15538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:13,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12969 states to 12969 states and 15538 transitions. [2023-12-16 02:16:13,854 INFO L78 Accepts]: Start accepts. Automaton has 12969 states and 15538 transitions. Word has length 171 [2023-12-16 02:16:13,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:13,854 INFO L495 AbstractCegarLoop]: Abstraction has 12969 states and 15538 transitions. [2023-12-16 02:16:13,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:13,855 INFO L276 IsEmpty]: Start isEmpty. Operand 12969 states and 15538 transitions. [2023-12-16 02:16:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-12-16 02:16:13,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:13,857 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:13,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 02:16:13,858 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:13,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:13,858 INFO L85 PathProgramCache]: Analyzing trace with hash 595655518, now seen corresponding path program 1 times [2023-12-16 02:16:13,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:13,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578148413] [2023-12-16 02:16:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:13,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:14,131 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 164 proven. 70 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 02:16:14,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578148413] [2023-12-16 02:16:14,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578148413] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:14,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952864308] [2023-12-16 02:16:14,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:14,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:16:14,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:16:14,150 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) [2023-12-16 02:16:14,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 02:16:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:14,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 02:16:14,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:16:14,475 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 164 proven. 70 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 02:16:14,475 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 02:16:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 02:16:14,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952864308] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:14,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 02:16:14,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2023-12-16 02:16:14,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117544845] [2023-12-16 02:16:14,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:14,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:14,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:14,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:14,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:16:14,690 INFO L87 Difference]: Start difference. First operand 12969 states and 15538 transitions. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:18,056 INFO L93 Difference]: Finished difference Result 37035 states and 44926 transitions. [2023-12-16 02:16:18,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:18,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 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 238 [2023-12-16 02:16:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:18,096 INFO L225 Difference]: With dead ends: 37035 [2023-12-16 02:16:18,096 INFO L226 Difference]: Without dead ends: 22758 [2023-12-16 02:16:18,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 477 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-16 02:16:18,108 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 1077 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 2269 mSolverCounterSat, 1262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 3531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1262 IncrementalHoareTripleChecker+Valid, 2269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:18,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 145 Invalid, 3531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1262 Valid, 2269 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-16 02:16:18,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22758 states. [2023-12-16 02:16:18,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22758 to 22752. [2023-12-16 02:16:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22752 states, 22751 states have (on average 1.1602566920135378) internal successors, (26397), 22751 states have internal predecessors, (26397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:18,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22752 states to 22752 states and 26397 transitions. [2023-12-16 02:16:18,338 INFO L78 Accepts]: Start accepts. Automaton has 22752 states and 26397 transitions. Word has length 238 [2023-12-16 02:16:18,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:18,338 INFO L495 AbstractCegarLoop]: Abstraction has 22752 states and 26397 transitions. [2023-12-16 02:16:18,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 3 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:18,339 INFO L276 IsEmpty]: Start isEmpty. Operand 22752 states and 26397 transitions. [2023-12-16 02:16:18,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2023-12-16 02:16:18,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:18,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:18,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 02:16:18,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:16:18,548 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:18,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:18,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1902092960, now seen corresponding path program 1 times [2023-12-16 02:16:18,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:18,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425411890] [2023-12-16 02:16:18,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:18,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:18,785 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:18,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:18,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425411890] [2023-12-16 02:16:18,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425411890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:18,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:18,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:18,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412459947] [2023-12-16 02:16:18,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:18,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:18,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:18,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:18,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:18,787 INFO L87 Difference]: Start difference. First operand 22752 states and 26397 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:20,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:20,492 INFO L93 Difference]: Finished difference Result 51931 states and 60509 transitions. [2023-12-16 02:16:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:20,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 271 [2023-12-16 02:16:20,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:20,542 INFO L225 Difference]: With dead ends: 51931 [2023-12-16 02:16:20,542 INFO L226 Difference]: Without dead ends: 28328 [2023-12-16 02:16:20,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:20,565 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 301 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:20,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 775 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 02:16:20,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28328 states. [2023-12-16 02:16:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28328 to 27894. [2023-12-16 02:16:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27894 states, 27893 states have (on average 1.1442655863478293) internal successors, (31917), 27893 states have internal predecessors, (31917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:20,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27894 states to 27894 states and 31917 transitions. [2023-12-16 02:16:20,853 INFO L78 Accepts]: Start accepts. Automaton has 27894 states and 31917 transitions. Word has length 271 [2023-12-16 02:16:20,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:20,853 INFO L495 AbstractCegarLoop]: Abstraction has 27894 states and 31917 transitions. [2023-12-16 02:16:20,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:20,854 INFO L276 IsEmpty]: Start isEmpty. Operand 27894 states and 31917 transitions. [2023-12-16 02:16:20,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-12-16 02:16:20,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:20,863 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 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] [2023-12-16 02:16:20,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 02:16:20,863 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:20,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1907875544, now seen corresponding path program 1 times [2023-12-16 02:16:20,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:20,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750071826] [2023-12-16 02:16:20,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:20,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-12-16 02:16:21,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:21,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750071826] [2023-12-16 02:16:21,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750071826] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:21,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:21,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:21,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20112824] [2023-12-16 02:16:21,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:21,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:21,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:21,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:21,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:21,010 INFO L87 Difference]: Start difference. First operand 27894 states and 31917 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:23,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:23,097 INFO L93 Difference]: Finished difference Result 66016 states and 75500 transitions. [2023-12-16 02:16:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:23,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 332 [2023-12-16 02:16:23,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:23,166 INFO L225 Difference]: With dead ends: 66016 [2023-12-16 02:16:23,166 INFO L226 Difference]: Without dead ends: 37698 [2023-12-16 02:16:23,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:23,184 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 483 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:23,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 273 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 02:16:23,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37698 states. [2023-12-16 02:16:23,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37698 to 36821. [2023-12-16 02:16:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36821 states, 36820 states have (on average 1.1376969038565996) internal successors, (41890), 36820 states have internal predecessors, (41890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36821 states to 36821 states and 41890 transitions. [2023-12-16 02:16:23,642 INFO L78 Accepts]: Start accepts. Automaton has 36821 states and 41890 transitions. Word has length 332 [2023-12-16 02:16:23,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:23,643 INFO L495 AbstractCegarLoop]: Abstraction has 36821 states and 41890 transitions. [2023-12-16 02:16:23,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:23,643 INFO L276 IsEmpty]: Start isEmpty. Operand 36821 states and 41890 transitions. [2023-12-16 02:16:23,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2023-12-16 02:16:23,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:23,649 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 02:16:23,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 02:16:23,650 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:23,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash -984297768, now seen corresponding path program 1 times [2023-12-16 02:16:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693575253] [2023-12-16 02:16:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:23,844 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 202 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-12-16 02:16:23,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:23,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693575253] [2023-12-16 02:16:23,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693575253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:23,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:23,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:23,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59375080] [2023-12-16 02:16:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:23,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:23,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:23,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:23,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:23,847 INFO L87 Difference]: Start difference. First operand 36821 states and 41890 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:25,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:25,518 INFO L93 Difference]: Finished difference Result 82136 states and 93799 transitions. [2023-12-16 02:16:25,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:25,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 353 [2023-12-16 02:16:25,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:25,576 INFO L225 Difference]: With dead ends: 82136 [2023-12-16 02:16:25,576 INFO L226 Difference]: Without dead ends: 45316 [2023-12-16 02:16:25,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:25,602 INFO L413 NwaCegarLoop]: 725 mSDtfsCounter, 272 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:25,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 786 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-16 02:16:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45316 states. [2023-12-16 02:16:26,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45316 to 45316. [2023-12-16 02:16:26,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45316 states, 45315 states have (on average 1.1218360366324616) internal successors, (50836), 45315 states have internal predecessors, (50836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:26,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45316 states to 45316 states and 50836 transitions. [2023-12-16 02:16:26,266 INFO L78 Accepts]: Start accepts. Automaton has 45316 states and 50836 transitions. Word has length 353 [2023-12-16 02:16:26,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:26,267 INFO L495 AbstractCegarLoop]: Abstraction has 45316 states and 50836 transitions. [2023-12-16 02:16:26,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 45316 states and 50836 transitions. [2023-12-16 02:16:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-12-16 02:16:26,279 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:26,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:26,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 02:16:26,281 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:26,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:26,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1940168131, now seen corresponding path program 1 times [2023-12-16 02:16:26,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:26,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41026508] [2023-12-16 02:16:26,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:26,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:16:26,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:26,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41026508] [2023-12-16 02:16:26,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41026508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:26,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:26,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 02:16:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858378241] [2023-12-16 02:16:26,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:26,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:26,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:26,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:26,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:26,603 INFO L87 Difference]: Start difference. First operand 45316 states and 50836 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:28,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:28,518 INFO L93 Difference]: Finished difference Result 104722 states and 117660 transitions. [2023-12-16 02:16:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:28,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 376 [2023-12-16 02:16:28,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:28,582 INFO L225 Difference]: With dead ends: 104722 [2023-12-16 02:16:28,582 INFO L226 Difference]: Without dead ends: 59407 [2023-12-16 02:16:28,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:28,611 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 335 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1302 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:28,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 650 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1302 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:16:28,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59407 states. [2023-12-16 02:16:29,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59407 to 56824. [2023-12-16 02:16:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56824 states, 56823 states have (on average 1.1257941326575507) internal successors, (63971), 56823 states have internal predecessors, (63971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:29,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56824 states to 56824 states and 63971 transitions. [2023-12-16 02:16:29,425 INFO L78 Accepts]: Start accepts. Automaton has 56824 states and 63971 transitions. Word has length 376 [2023-12-16 02:16:29,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:29,425 INFO L495 AbstractCegarLoop]: Abstraction has 56824 states and 63971 transitions. [2023-12-16 02:16:29,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:29,426 INFO L276 IsEmpty]: Start isEmpty. Operand 56824 states and 63971 transitions. [2023-12-16 02:16:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2023-12-16 02:16:29,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:29,434 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:29,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 02:16:29,434 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:29,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash 295076039, now seen corresponding path program 1 times [2023-12-16 02:16:29,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:29,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374189862] [2023-12-16 02:16:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:29,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:16:29,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:29,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374189862] [2023-12-16 02:16:29,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374189862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:29,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:29,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:16:29,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588248534] [2023-12-16 02:16:29,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:29,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:29,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:29,985 INFO L87 Difference]: Start difference. First operand 56824 states and 63971 transitions. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:33,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:33,006 INFO L93 Difference]: Finished difference Result 142213 states and 159745 transitions. [2023-12-16 02:16:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:33,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 419 [2023-12-16 02:16:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:33,102 INFO L225 Difference]: With dead ends: 142213 [2023-12-16 02:16:33,102 INFO L226 Difference]: Without dead ends: 84965 [2023-12-16 02:16:33,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:33,139 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 812 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 3021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:33,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 162 Invalid, 3021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-16 02:16:33,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84965 states. [2023-12-16 02:16:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84965 to 76386. [2023-12-16 02:16:33,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76386 states, 76385 states have (on average 1.1186227662499182) internal successors, (85446), 76385 states have internal predecessors, (85446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:34,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76386 states to 76386 states and 85446 transitions. [2023-12-16 02:16:34,079 INFO L78 Accepts]: Start accepts. Automaton has 76386 states and 85446 transitions. Word has length 419 [2023-12-16 02:16:34,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:34,080 INFO L495 AbstractCegarLoop]: Abstraction has 76386 states and 85446 transitions. [2023-12-16 02:16:34,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:34,080 INFO L276 IsEmpty]: Start isEmpty. Operand 76386 states and 85446 transitions. [2023-12-16 02:16:34,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2023-12-16 02:16:34,089 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:34,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:34,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 02:16:34,089 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:34,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:34,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1281706817, now seen corresponding path program 1 times [2023-12-16 02:16:34,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:34,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406722978] [2023-12-16 02:16:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:34,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 02:16:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406722978] [2023-12-16 02:16:35,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406722978] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:35,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:35,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 02:16:35,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055838072] [2023-12-16 02:16:35,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:35,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 02:16:35,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:35,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 02:16:35,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:16:35,003 INFO L87 Difference]: Start difference. First operand 76386 states and 85446 transitions. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:38,324 INFO L93 Difference]: Finished difference Result 177077 states and 198313 transitions. [2023-12-16 02:16:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 02:16:38,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 426 [2023-12-16 02:16:38,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:38,538 INFO L225 Difference]: With dead ends: 177077 [2023-12-16 02:16:38,538 INFO L226 Difference]: Without dead ends: 100692 [2023-12-16 02:16:38,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:16:38,576 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 1112 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 3977 mSolverCounterSat, 451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 4428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 3977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:38,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1112 Valid, 244 Invalid, 4428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 3977 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-16 02:16:38,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100692 states. [2023-12-16 02:16:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100692 to 91742. [2023-12-16 02:16:39,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91742 states, 91741 states have (on average 1.1246552795369573) internal successors, (103177), 91741 states have internal predecessors, (103177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:39,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91742 states to 91742 states and 103177 transitions. [2023-12-16 02:16:39,854 INFO L78 Accepts]: Start accepts. Automaton has 91742 states and 103177 transitions. Word has length 426 [2023-12-16 02:16:39,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:39,855 INFO L495 AbstractCegarLoop]: Abstraction has 91742 states and 103177 transitions. [2023-12-16 02:16:39,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:39,855 INFO L276 IsEmpty]: Start isEmpty. Operand 91742 states and 103177 transitions. [2023-12-16 02:16:39,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2023-12-16 02:16:39,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:39,865 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 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] [2023-12-16 02:16:39,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 02:16:39,865 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:39,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:39,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1296480900, now seen corresponding path program 1 times [2023-12-16 02:16:39,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:39,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360570037] [2023-12-16 02:16:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:39,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 459 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-12-16 02:16:40,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:40,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360570037] [2023-12-16 02:16:40,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360570037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:40,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:40,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 02:16:40,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166850665] [2023-12-16 02:16:40,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:40,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:40,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:40,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:40,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:40,214 INFO L87 Difference]: Start difference. First operand 91742 states and 103177 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 2 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:41,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:41,402 INFO L93 Difference]: Finished difference Result 180063 states and 202009 transitions. [2023-12-16 02:16:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:41,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 2 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2023-12-16 02:16:41,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:41,504 INFO L225 Difference]: With dead ends: 180063 [2023-12-16 02:16:41,504 INFO L226 Difference]: Without dead ends: 88322 [2023-12-16 02:16:41,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 02:16:41,543 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 632 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:41,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 106 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 02:16:41,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88322 states. [2023-12-16 02:16:42,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88322 to 86188. [2023-12-16 02:16:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86188 states, 86187 states have (on average 1.1202965644470744) internal successors, (96555), 86187 states have internal predecessors, (96555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:42,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86188 states to 86188 states and 96555 transitions. [2023-12-16 02:16:42,794 INFO L78 Accepts]: Start accepts. Automaton has 86188 states and 96555 transitions. Word has length 440 [2023-12-16 02:16:42,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:42,795 INFO L495 AbstractCegarLoop]: Abstraction has 86188 states and 96555 transitions. [2023-12-16 02:16:42,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 2 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:42,795 INFO L276 IsEmpty]: Start isEmpty. Operand 86188 states and 96555 transitions. [2023-12-16 02:16:42,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2023-12-16 02:16:42,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:42,804 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2023-12-16 02:16:42,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 02:16:42,805 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:42,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:42,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2095815095, now seen corresponding path program 1 times [2023-12-16 02:16:42,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:42,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136380376] [2023-12-16 02:16:42,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:42,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-12-16 02:16:43,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:43,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136380376] [2023-12-16 02:16:43,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136380376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:43,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 02:16:43,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 02:16:43,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820412786] [2023-12-16 02:16:43,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:43,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 02:16:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:43,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 02:16:43,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:43,498 INFO L87 Difference]: Start difference. First operand 86188 states and 96555 transitions. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:46,536 INFO L93 Difference]: Finished difference Result 201377 states and 224871 transitions. [2023-12-16 02:16:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 02:16:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 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 458 [2023-12-16 02:16:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:46,735 INFO L225 Difference]: With dead ends: 201377 [2023-12-16 02:16:46,735 INFO L226 Difference]: Without dead ends: 111782 [2023-12-16 02:16:46,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 02:16:47,006 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 773 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 2601 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 2976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 2601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:47,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 246 Invalid, 2976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 2601 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-16 02:16:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111782 states. [2023-12-16 02:16:48,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111782 to 107890. [2023-12-16 02:16:48,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107890 states, 107889 states have (on average 1.11316260230422) internal successors, (120098), 107889 states have internal predecessors, (120098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:48,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107890 states to 107890 states and 120098 transitions. [2023-12-16 02:16:48,356 INFO L78 Accepts]: Start accepts. Automaton has 107890 states and 120098 transitions. Word has length 458 [2023-12-16 02:16:48,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:48,356 INFO L495 AbstractCegarLoop]: Abstraction has 107890 states and 120098 transitions. [2023-12-16 02:16:48,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:48,356 INFO L276 IsEmpty]: Start isEmpty. Operand 107890 states and 120098 transitions. [2023-12-16 02:16:48,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-12-16 02:16:48,368 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:48,369 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:48,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 02:16:48,369 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:48,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:48,370 INFO L85 PathProgramCache]: Analyzing trace with hash 593163083, now seen corresponding path program 1 times [2023-12-16 02:16:48,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:48,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106020145] [2023-12-16 02:16:48,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:48,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 02:16:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 255 proven. 82 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 02:16:49,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 02:16:49,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106020145] [2023-12-16 02:16:49,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106020145] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 02:16:49,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369277187] [2023-12-16 02:16:49,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:49,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 02:16:49,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 02:16:49,405 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) [2023-12-16 02:16:49,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 02:16:49,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 02:16:49,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 02:16:49,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 02:16:51,075 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 268 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-12-16 02:16:51,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 02:16:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369277187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 02:16:51,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 02:16:51,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 02:16:51,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253410640] [2023-12-16 02:16:51,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 02:16:51,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 02:16:51,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 02:16:51,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 02:16:51,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:16:51,077 INFO L87 Difference]: Start difference. First operand 107890 states and 120098 transitions. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 02:16:53,211 INFO L93 Difference]: Finished difference Result 226886 states and 252353 transitions. [2023-12-16 02:16:53,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 02:16:53,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 469 [2023-12-16 02:16:53,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 02:16:53,357 INFO L225 Difference]: With dead ends: 226886 [2023-12-16 02:16:53,357 INFO L226 Difference]: Without dead ends: 118997 [2023-12-16 02:16:53,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 02:16:53,432 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 232 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-16 02:16:53,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 365 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-16 02:16:53,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118997 states. [2023-12-16 02:16:54,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118997 to 115569. [2023-12-16 02:16:55,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115569 states, 115568 states have (on average 1.1057559185933823) internal successors, (127790), 115568 states have internal predecessors, (127790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:55,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115569 states to 115569 states and 127790 transitions. [2023-12-16 02:16:55,167 INFO L78 Accepts]: Start accepts. Automaton has 115569 states and 127790 transitions. Word has length 469 [2023-12-16 02:16:55,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 02:16:55,167 INFO L495 AbstractCegarLoop]: Abstraction has 115569 states and 127790 transitions. [2023-12-16 02:16:55,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 02:16:55,168 INFO L276 IsEmpty]: Start isEmpty. Operand 115569 states and 127790 transitions. [2023-12-16 02:16:55,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2023-12-16 02:16:55,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 02:16:55,181 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:55,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 02:16:55,389 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,SelfDestructingSolverStorable16 [2023-12-16 02:16:55,390 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 02:16:55,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 02:16:55,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1054115083, now seen corresponding path program 1 times [2023-12-16 02:16:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 02:16:55,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138410102] [2023-12-16 02:16:55,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 02:16:55,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2023-12-16 02:16:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-16 02:16:55,466 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 02:16:55,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 02:16:55,467 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 507 with TraceHistMax 6,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [138410102] and IpTcStrategyModuleZ3 [901276515]. [2023-12-16 02:16:55,470 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 02:16:55,472 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 02:16:55,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 02:16:55 BoogieIcfgContainer [2023-12-16 02:16:55,474 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 02:16:55,474 INFO L158 Benchmark]: Toolchain (without parser) took 60611.64ms. Allocated memory was 260.0MB in the beginning and 6.1GB in the end (delta: 5.9GB). Free memory was 197.9MB in the beginning and 3.9GB in the end (delta: -3.7GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 02:16:55,474 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 02:16:55,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.08ms. Allocated memory is still 260.0MB. Free memory was 197.4MB in the beginning and 151.2MB in the end (delta: 46.2MB). Peak memory consumption was 60.9MB. Max. memory is 8.0GB. [2023-12-16 02:16:55,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 400.10ms. Allocated memory was 260.0MB in the beginning and 393.2MB in the end (delta: 133.2MB). Free memory was 151.2MB in the beginning and 312.8MB in the end (delta: -161.6MB). Peak memory consumption was 77.5MB. Max. memory is 8.0GB. [2023-12-16 02:16:55,475 INFO L158 Benchmark]: Boogie Preprocessor took 326.47ms. Allocated memory is still 393.2MB. Free memory was 312.8MB in the beginning and 287.6MB in the end (delta: 25.2MB). Peak memory consumption was 89.7MB. Max. memory is 8.0GB. [2023-12-16 02:16:55,475 INFO L158 Benchmark]: RCFGBuilder took 2571.62ms. Allocated memory was 393.2MB in the beginning and 746.6MB in the end (delta: 353.4MB). Free memory was 287.6MB in the beginning and 502.2MB in the end (delta: -214.6MB). Peak memory consumption was 147.8MB. Max. memory is 8.0GB. [2023-12-16 02:16:55,475 INFO L158 Benchmark]: TraceAbstraction took 56482.69ms. Allocated memory was 746.6MB in the beginning and 6.1GB in the end (delta: 5.4GB). Free memory was 501.2MB in the beginning and 3.9GB in the end (delta: -3.4GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-16 02:16:55,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2023-12-16 02:16:55,479 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 Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 188.7MB. Free memory is still 135.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 825.08ms. Allocated memory is still 260.0MB. Free memory was 197.4MB in the beginning and 151.2MB in the end (delta: 46.2MB). Peak memory consumption was 60.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 400.10ms. Allocated memory was 260.0MB in the beginning and 393.2MB in the end (delta: 133.2MB). Free memory was 151.2MB in the beginning and 312.8MB in the end (delta: -161.6MB). Peak memory consumption was 77.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 326.47ms. Allocated memory is still 393.2MB. Free memory was 312.8MB in the beginning and 287.6MB in the end (delta: 25.2MB). Peak memory consumption was 89.7MB. Max. memory is 8.0GB. * RCFGBuilder took 2571.62ms. Allocated memory was 393.2MB in the beginning and 746.6MB in the end (delta: 353.4MB). Free memory was 287.6MB in the beginning and 502.2MB in the end (delta: -214.6MB). Peak memory consumption was 147.8MB. Max. memory is 8.0GB. * TraceAbstraction took 56482.69ms. Allocated memory was 746.6MB in the beginning and 6.1GB in the end (delta: 5.4GB). Free memory was 501.2MB in the beginning and 3.9GB in the end (delta: -3.4GB). Peak memory consumption was 2.0GB. 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: 63]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 63). Cancelled while NwaCegarLoop was analyzing trace of length 507 with TraceHistMax 6,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [138410102] and IpTcStrategyModuleZ3 [901276515]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.4s, OverallIterations: 18, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 38.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9167 SdHoareTripleChecker+Valid, 31.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9167 mSDsluCounter, 7875 SdHoareTripleChecker+Invalid, 26.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1116 mSDsCounter, 5789 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27577 IncrementalHoareTripleChecker+Invalid, 33366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5789 mSolverCounterUnsat, 6759 mSDtfsCounter, 27577 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 992 GetRequests, 966 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115569occurred in iteration=17, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 9.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 33951 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 5176 NumberOfCodeBlocks, 5176 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 5394 ConstructedInterpolants, 0 QuantifiedInterpolants, 17466 SizeOfPredicates, 0 NumberOfNonLiveVariables, 959 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 20 InterpolantComputations, 17 PerfectInterpolantSequences, 4493/4715 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