/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/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:06:19,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:06:19,526 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 06:06:19,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:06:19,531 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:06:19,554 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:06:19,555 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:06:19,555 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:06:19,555 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:06:19,558 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:06:19,559 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:06:19,559 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:06:19,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:06:19,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:06:19,561 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:06:19,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:06:19,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:06:19,561 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:06:19,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:06:19,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:06:19,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:06:19,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:06:19,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:06:19,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:06:19,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:06:19,563 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:06:19,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:06:19,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:06:19,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:06:19,564 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:06:19,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:06:19,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:06:19,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:06:19,565 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:06:19,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:06:19,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:06:19,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:06:19,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:06:19,566 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:06:19,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:06:19,566 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:06:19,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:06:19,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:06:19,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:06:19,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:06:19,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:06:19,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:06:19,801 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:06:19,801 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:06:19,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2023-12-16 06:06:20,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:06:20,997 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:06:20,998 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2023-12-16 06:06:21,006 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1a138e3/067250f632c54a2291f56e096f98fb13/FLAG71b2fec01 [2023-12-16 06:06:21,016 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec1a138e3/067250f632c54a2291f56e096f98fb13 [2023-12-16 06:06:21,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:06:21,019 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:06:21,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:06:21,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:06:21,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:06:21,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17702433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21, skipping insertion in model container [2023-12-16 06:06:21,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:06:21,231 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c[20121,20134] [2023-12-16 06:06:21,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:06:21,247 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:06:21,296 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c[20121,20134] [2023-12-16 06:06:21,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:06:21,308 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:06:21,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21 WrapperNode [2023-12-16 06:06:21,308 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:06:21,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:06:21,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:06:21,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:06:21,321 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,359 INFO L138 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 449 [2023-12-16 06:06:21,359 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:06:21,360 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:06:21,360 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:06:21,360 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:06:21,368 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,391 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 06:06:21,391 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,402 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,403 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:06:21,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:06:21,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:06:21,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:06:21,422 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (1/1) ... [2023-12-16 06:06:21,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:06:21,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:06:21,486 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 06:06:21,487 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 06:06:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:06:21,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:06:21,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:06:21,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:06:21,580 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:06:21,582 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:06:21,981 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:06:22,008 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:06:22,008 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 06:06:22,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:06:22 BoogieIcfgContainer [2023-12-16 06:06:22,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:06:22,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:06:22,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:06:22,012 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:06:22,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:06:21" (1/3) ... [2023-12-16 06:06:22,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448fc5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:06:22, skipping insertion in model container [2023-12-16 06:06:22,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:21" (2/3) ... [2023-12-16 06:06:22,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448fc5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:06:22, skipping insertion in model container [2023-12-16 06:06:22,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:06:22" (3/3) ... [2023-12-16 06:06:22,013 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7_overflow.ufo.UNBOUNDED.pals.c [2023-12-16 06:06:22,025 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:06:22,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:06:22,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:06:22,061 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;@566ce85c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:06:22,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:06:22,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 107 states have (on average 1.8224299065420562) internal successors, (195), 108 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:06:22,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-16 06:06:22,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:22,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:22,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:22,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:22,075 INFO L85 PathProgramCache]: Analyzing trace with hash 61708070, now seen corresponding path program 1 times [2023-12-16 06:06:22,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:22,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139996713] [2023-12-16 06:06:22,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:22,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:22,233 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 06:06:22,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:22,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139996713] [2023-12-16 06:06:22,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139996713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:22,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:22,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:06:22,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439913486] [2023-12-16 06:06:22,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:22,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 06:06:22,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:22,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 06:06:22,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:06:22,265 INFO L87 Difference]: Start difference. First operand has 109 states, 107 states have (on average 1.8224299065420562) internal successors, (195), 108 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 06:06:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:22,300 INFO L93 Difference]: Finished difference Result 163 states and 285 transitions. [2023-12-16 06:06:22,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 06:06:22,302 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 24 [2023-12-16 06:06:22,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:22,313 INFO L225 Difference]: With dead ends: 163 [2023-12-16 06:06:22,313 INFO L226 Difference]: Without dead ends: 107 [2023-12-16 06:06:22,315 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 06:06:22,317 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:22,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:22,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-16 06:06:22,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-12-16 06:06:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.7924528301886793) internal successors, (190), 106 states have internal predecessors, (190), 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 06:06:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 190 transitions. [2023-12-16 06:06:22,345 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 190 transitions. Word has length 24 [2023-12-16 06:06:22,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:22,345 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 190 transitions. [2023-12-16 06:06:22,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 06:06:22,345 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 190 transitions. [2023-12-16 06:06:22,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-16 06:06:22,346 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:22,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:22,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:06:22,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:22,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:22,347 INFO L85 PathProgramCache]: Analyzing trace with hash 484409896, now seen corresponding path program 1 times [2023-12-16 06:06:22,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:22,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975660789] [2023-12-16 06:06:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:22,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:22,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:06:22,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:22,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975660789] [2023-12-16 06:06:22,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975660789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:22,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:22,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:06:22,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917423089] [2023-12-16 06:06:22,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:22,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:06:22,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:22,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:06:22,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:06:22,511 INFO L87 Difference]: Start difference. First operand 107 states and 190 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 06:06:22,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:22,602 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2023-12-16 06:06:22,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:06:22,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2023-12-16 06:06:22,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:22,604 INFO L225 Difference]: With dead ends: 163 [2023-12-16 06:06:22,604 INFO L226 Difference]: Without dead ends: 107 [2023-12-16 06:06:22,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:06:22,630 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:22,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 508 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:22,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-16 06:06:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-12-16 06:06:22,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.320754716981132) internal successors, (140), 106 states have internal predecessors, (140), 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 06:06:22,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 140 transitions. [2023-12-16 06:06:22,636 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 140 transitions. Word has length 24 [2023-12-16 06:06:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:22,636 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 140 transitions. [2023-12-16 06:06:22,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 06:06:22,636 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 140 transitions. [2023-12-16 06:06:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-16 06:06:22,637 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:22,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:22,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:06:22,638 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:22,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:22,638 INFO L85 PathProgramCache]: Analyzing trace with hash 456528988, now seen corresponding path program 1 times [2023-12-16 06:06:22,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:22,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613531802] [2023-12-16 06:06:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:22,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:22,943 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 06:06:22,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:22,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613531802] [2023-12-16 06:06:22,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613531802] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:22,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:22,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:22,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742235957] [2023-12-16 06:06:22,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:22,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:22,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:22,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:22,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:22,948 INFO L87 Difference]: Start difference. First operand 107 states and 140 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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 06:06:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:23,313 INFO L93 Difference]: Finished difference Result 849 states and 1344 transitions. [2023-12-16 06:06:23,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 06:06:23,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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 73 [2023-12-16 06:06:23,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:23,321 INFO L225 Difference]: With dead ends: 849 [2023-12-16 06:06:23,321 INFO L226 Difference]: Without dead ends: 796 [2023-12-16 06:06:23,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-12-16 06:06:23,326 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 1483 mSDsluCounter, 2856 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:23,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 2989 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:06:23,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-12-16 06:06:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 158. [2023-12-16 06:06:23,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.4203821656050954) internal successors, (223), 157 states have internal predecessors, (223), 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 06:06:23,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 223 transitions. [2023-12-16 06:06:23,363 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 223 transitions. Word has length 73 [2023-12-16 06:06:23,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:23,364 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 223 transitions. [2023-12-16 06:06:23,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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 06:06:23,364 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 223 transitions. [2023-12-16 06:06:23,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 06:06:23,366 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:23,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:23,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:06:23,366 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:23,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:23,367 INFO L85 PathProgramCache]: Analyzing trace with hash -122926772, now seen corresponding path program 1 times [2023-12-16 06:06:23,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:23,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934991008] [2023-12-16 06:06:23,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:23,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:23,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:23,445 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 06:06:23,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:23,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934991008] [2023-12-16 06:06:23,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934991008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:23,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:23,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:23,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402845169] [2023-12-16 06:06:23,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:23,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:23,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:23,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:23,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:23,447 INFO L87 Difference]: Start difference. First operand 158 states and 223 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 06:06:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:23,471 INFO L93 Difference]: Finished difference Result 355 states and 542 transitions. [2023-12-16 06:06:23,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:23,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2023-12-16 06:06:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:23,473 INFO L225 Difference]: With dead ends: 355 [2023-12-16 06:06:23,474 INFO L226 Difference]: Without dead ends: 251 [2023-12-16 06:06:23,476 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 06:06:23,480 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 58 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:23,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 215 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:23,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-16 06:06:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2023-12-16 06:06:23,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.4879032258064515) internal successors, (369), 248 states have internal predecessors, (369), 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 06:06:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 369 transitions. [2023-12-16 06:06:23,490 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 369 transitions. Word has length 75 [2023-12-16 06:06:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:23,491 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 369 transitions. [2023-12-16 06:06:23,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 06:06:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 369 transitions. [2023-12-16 06:06:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-16 06:06:23,492 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:23,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:23,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:06:23,493 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:23,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:23,493 INFO L85 PathProgramCache]: Analyzing trace with hash -120781820, now seen corresponding path program 1 times [2023-12-16 06:06:23,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:23,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290321212] [2023-12-16 06:06:23,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:23,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:23,898 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 06:06:23,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:23,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290321212] [2023-12-16 06:06:23,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290321212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:23,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:23,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:23,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897719484] [2023-12-16 06:06:23,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:23,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:23,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:23,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:23,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:23,902 INFO L87 Difference]: Start difference. First operand 249 states and 369 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 06:06:24,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:24,191 INFO L93 Difference]: Finished difference Result 446 states and 685 transitions. [2023-12-16 06:06:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:24,192 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 75 [2023-12-16 06:06:24,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:24,194 INFO L225 Difference]: With dead ends: 446 [2023-12-16 06:06:24,194 INFO L226 Difference]: Without dead ends: 251 [2023-12-16 06:06:24,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-12-16 06:06:24,195 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 119 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:24,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 709 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:24,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-12-16 06:06:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2023-12-16 06:06:24,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 248 states have (on average 1.4798387096774193) internal successors, (367), 248 states have internal predecessors, (367), 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 06:06:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 367 transitions. [2023-12-16 06:06:24,205 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 367 transitions. Word has length 75 [2023-12-16 06:06:24,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:24,205 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 367 transitions. [2023-12-16 06:06:24,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 9 states have internal predecessors, (75), 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 06:06:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 367 transitions. [2023-12-16 06:06:24,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-16 06:06:24,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:24,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:24,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:06:24,211 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:24,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:24,212 INFO L85 PathProgramCache]: Analyzing trace with hash 536658470, now seen corresponding path program 1 times [2023-12-16 06:06:24,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:24,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402583424] [2023-12-16 06:06:24,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:24,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:24,467 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 06:06:24,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402583424] [2023-12-16 06:06:24,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402583424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:24,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:24,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:06:24,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792262446] [2023-12-16 06:06:24,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:24,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:06:24,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:06:24,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:06:24,468 INFO L87 Difference]: Start difference. First operand 249 states and 367 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 06:06:24,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:24,490 INFO L93 Difference]: Finished difference Result 257 states and 376 transitions. [2023-12-16 06:06:24,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:06:24,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 76 [2023-12-16 06:06:24,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:24,492 INFO L225 Difference]: With dead ends: 257 [2023-12-16 06:06:24,492 INFO L226 Difference]: Without dead ends: 255 [2023-12-16 06:06:24,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:06:24,493 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 2 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:24,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 665 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:24,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-16 06:06:24,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 253. [2023-12-16 06:06:24,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 252 states have (on average 1.4682539682539681) internal successors, (370), 252 states have internal predecessors, (370), 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 06:06:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 370 transitions. [2023-12-16 06:06:24,505 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 370 transitions. Word has length 76 [2023-12-16 06:06:24,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:24,505 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 370 transitions. [2023-12-16 06:06:24,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 06:06:24,506 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 370 transitions. [2023-12-16 06:06:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:24,507 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:24,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:24,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:06:24,507 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:24,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1846932892, now seen corresponding path program 1 times [2023-12-16 06:06:24,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:24,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351400045] [2023-12-16 06:06:24,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:24,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:24,551 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 06:06:24,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:24,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351400045] [2023-12-16 06:06:24,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351400045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:24,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:24,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589776291] [2023-12-16 06:06:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:24,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:24,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:24,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:24,553 INFO L87 Difference]: Start difference. First operand 253 states and 370 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:24,566 INFO L93 Difference]: Finished difference Result 463 states and 703 transitions. [2023-12-16 06:06:24,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:24,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:24,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:24,568 INFO L225 Difference]: With dead ends: 463 [2023-12-16 06:06:24,568 INFO L226 Difference]: Without dead ends: 355 [2023-12-16 06:06:24,568 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 06:06:24,570 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 76 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:24,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:24,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2023-12-16 06:06:24,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 353. [2023-12-16 06:06:24,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 352 states have (on average 1.4971590909090908) internal successors, (527), 352 states have internal predecessors, (527), 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 06:06:24,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 527 transitions. [2023-12-16 06:06:24,578 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 527 transitions. Word has length 77 [2023-12-16 06:06:24,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:24,578 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 527 transitions. [2023-12-16 06:06:24,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,578 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 527 transitions. [2023-12-16 06:06:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:24,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:24,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:24,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:06:24,582 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:24,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:24,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1501935516, now seen corresponding path program 1 times [2023-12-16 06:06:24,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:24,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407862008] [2023-12-16 06:06:24,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:24,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:24,618 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 06:06:24,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:24,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407862008] [2023-12-16 06:06:24,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407862008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:24,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:24,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:24,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306331813] [2023-12-16 06:06:24,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:24,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:24,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:24,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:24,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:24,620 INFO L87 Difference]: Start difference. First operand 353 states and 527 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:24,641 INFO L93 Difference]: Finished difference Result 923 states and 1427 transitions. [2023-12-16 06:06:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:24,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:24,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:24,644 INFO L225 Difference]: With dead ends: 923 [2023-12-16 06:06:24,645 INFO L226 Difference]: Without dead ends: 626 [2023-12-16 06:06:24,645 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 06:06:24,646 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 72 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:24,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2023-12-16 06:06:24,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 624. [2023-12-16 06:06:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 623 states have (on average 1.5232744783306582) internal successors, (949), 623 states have internal predecessors, (949), 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 06:06:24,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 949 transitions. [2023-12-16 06:06:24,660 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 949 transitions. Word has length 77 [2023-12-16 06:06:24,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:24,661 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 949 transitions. [2023-12-16 06:06:24,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,661 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 949 transitions. [2023-12-16 06:06:24,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:24,661 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:24,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:24,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:06:24,662 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:24,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:24,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1770518684, now seen corresponding path program 1 times [2023-12-16 06:06:24,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:24,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020505741] [2023-12-16 06:06:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:24,707 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 06:06:24,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:24,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020505741] [2023-12-16 06:06:24,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020505741] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:24,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:24,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:24,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905711277] [2023-12-16 06:06:24,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:24,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:24,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:24,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:24,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:24,709 INFO L87 Difference]: Start difference. First operand 624 states and 949 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:24,734 INFO L93 Difference]: Finished difference Result 1712 states and 2651 transitions. [2023-12-16 06:06:24,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:24,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:24,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:24,738 INFO L225 Difference]: With dead ends: 1712 [2023-12-16 06:06:24,738 INFO L226 Difference]: Without dead ends: 1144 [2023-12-16 06:06:24,741 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 06:06:24,742 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 70 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:24,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 295 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:24,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2023-12-16 06:06:24,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1142. [2023-12-16 06:06:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.5293602103418054) internal successors, (1745), 1141 states have internal predecessors, (1745), 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 06:06:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1745 transitions. [2023-12-16 06:06:24,765 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1745 transitions. Word has length 77 [2023-12-16 06:06:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:24,766 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1745 transitions. [2023-12-16 06:06:24,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1745 transitions. [2023-12-16 06:06:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:24,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:24,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:24,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:06:24,767 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:24,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:24,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1938736484, now seen corresponding path program 1 times [2023-12-16 06:06:24,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:24,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186723870] [2023-12-16 06:06:24,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:24,807 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 06:06:24,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:24,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186723870] [2023-12-16 06:06:24,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186723870] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:24,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:24,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:24,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508756371] [2023-12-16 06:06:24,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:24,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:24,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:24,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:24,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:24,809 INFO L87 Difference]: Start difference. First operand 1142 states and 1745 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:24,846 INFO L93 Difference]: Finished difference Result 3218 states and 4955 transitions. [2023-12-16 06:06:24,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:24,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:24,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:24,852 INFO L225 Difference]: With dead ends: 3218 [2023-12-16 06:06:24,852 INFO L226 Difference]: Without dead ends: 2132 [2023-12-16 06:06:24,853 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 06:06:24,854 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 66 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:24,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 291 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:24,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2023-12-16 06:06:24,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2130. [2023-12-16 06:06:24,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.5223109441052136) internal successors, (3241), 2129 states have internal predecessors, (3241), 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 06:06:24,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3241 transitions. [2023-12-16 06:06:24,927 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3241 transitions. Word has length 77 [2023-12-16 06:06:24,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:24,927 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 3241 transitions. [2023-12-16 06:06:24,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:24,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3241 transitions. [2023-12-16 06:06:24,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:24,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:24,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:24,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:06:24,928 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:24,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1467497372, now seen corresponding path program 1 times [2023-12-16 06:06:24,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:24,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357598680] [2023-12-16 06:06:24,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:24,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:24,966 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 06:06:24,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:24,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357598680] [2023-12-16 06:06:24,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357598680] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:24,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:24,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:24,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438244770] [2023-12-16 06:06:24,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:24,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:24,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:24,968 INFO L87 Difference]: Start difference. First operand 2130 states and 3241 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:25,023 INFO L93 Difference]: Finished difference Result 6086 states and 9275 transitions. [2023-12-16 06:06:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:25,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:25,035 INFO L225 Difference]: With dead ends: 6086 [2023-12-16 06:06:25,035 INFO L226 Difference]: Without dead ends: 4012 [2023-12-16 06:06:25,039 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 06:06:25,040 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 64 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:25,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:25,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2023-12-16 06:06:25,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 4010. [2023-12-16 06:06:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4009 states have (on average 1.5068595659765527) internal successors, (6041), 4009 states have internal predecessors, (6041), 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 06:06:25,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 6041 transitions. [2023-12-16 06:06:25,135 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 6041 transitions. Word has length 77 [2023-12-16 06:06:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:25,135 INFO L495 AbstractCegarLoop]: Abstraction has 4010 states and 6041 transitions. [2023-12-16 06:06:25,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 6041 transitions. [2023-12-16 06:06:25,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:25,136 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:25,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:25,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:06:25,137 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:25,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:25,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1730574748, now seen corresponding path program 1 times [2023-12-16 06:06:25,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:25,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742989911] [2023-12-16 06:06:25,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:25,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:25,174 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 06:06:25,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:25,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742989911] [2023-12-16 06:06:25,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742989911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:25,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:25,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:25,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51869678] [2023-12-16 06:06:25,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:25,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:25,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:25,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:25,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:25,175 INFO L87 Difference]: Start difference. First operand 4010 states and 6041 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:25,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:25,311 INFO L93 Difference]: Finished difference Result 11534 states and 17339 transitions. [2023-12-16 06:06:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:25,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:25,332 INFO L225 Difference]: With dead ends: 11534 [2023-12-16 06:06:25,332 INFO L226 Difference]: Without dead ends: 7580 [2023-12-16 06:06:25,337 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 06:06:25,338 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 68 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:25,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 297 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7580 states. [2023-12-16 06:06:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7580 to 7578. [2023-12-16 06:06:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7578 states, 7577 states have (on average 1.4856803484228587) internal successors, (11257), 7577 states have internal predecessors, (11257), 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 06:06:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 11257 transitions. [2023-12-16 06:06:25,543 INFO L78 Accepts]: Start accepts. Automaton has 7578 states and 11257 transitions. Word has length 77 [2023-12-16 06:06:25,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:25,543 INFO L495 AbstractCegarLoop]: Abstraction has 7578 states and 11257 transitions. [2023-12-16 06:06:25,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:25,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7578 states and 11257 transitions. [2023-12-16 06:06:25,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-16 06:06:25,544 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:25,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:25,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:06:25,545 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:25,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:25,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1091548828, now seen corresponding path program 1 times [2023-12-16 06:06:25,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:25,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140196942] [2023-12-16 06:06:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:25,582 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 06:06:25,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:25,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140196942] [2023-12-16 06:06:25,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140196942] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:25,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:25,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:25,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024197619] [2023-12-16 06:06:25,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:25,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:25,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:25,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:25,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:25,584 INFO L87 Difference]: Start difference. First operand 7578 states and 11257 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:25,824 INFO L93 Difference]: Finished difference Result 21854 states and 32315 transitions. [2023-12-16 06:06:25,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:25,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2023-12-16 06:06:25,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:25,868 INFO L225 Difference]: With dead ends: 21854 [2023-12-16 06:06:25,868 INFO L226 Difference]: Without dead ends: 14332 [2023-12-16 06:06:25,878 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 06:06:25,878 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 74 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:25,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 299 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14332 states. [2023-12-16 06:06:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14332 to 14330. [2023-12-16 06:06:26,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14330 states, 14329 states have (on average 1.4600460604368763) internal successors, (20921), 14329 states have internal predecessors, (20921), 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 06:06:26,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14330 states to 14330 states and 20921 transitions. [2023-12-16 06:06:26,270 INFO L78 Accepts]: Start accepts. Automaton has 14330 states and 20921 transitions. Word has length 77 [2023-12-16 06:06:26,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:26,270 INFO L495 AbstractCegarLoop]: Abstraction has 14330 states and 20921 transitions. [2023-12-16 06:06:26,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 06:06:26,271 INFO L276 IsEmpty]: Start isEmpty. Operand 14330 states and 20921 transitions. [2023-12-16 06:06:26,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:26,274 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:26,275 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:26,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:06:26,275 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:26,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1778428204, now seen corresponding path program 1 times [2023-12-16 06:06:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:26,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482881343] [2023-12-16 06:06:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:26,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:26,443 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:06:26,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:26,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482881343] [2023-12-16 06:06:26,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482881343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:26,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:26,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:26,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419420775] [2023-12-16 06:06:26,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:26,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:26,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:26,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:26,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:26,445 INFO L87 Difference]: Start difference. First operand 14330 states and 20921 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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 06:06:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:27,936 INFO L93 Difference]: Finished difference Result 112842 states and 164865 transitions. [2023-12-16 06:06:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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 99 [2023-12-16 06:06:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:28,213 INFO L225 Difference]: With dead ends: 112842 [2023-12-16 06:06:28,213 INFO L226 Difference]: Without dead ends: 102856 [2023-12-16 06:06:28,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:06:28,258 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1217 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1217 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:28,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1217 Valid, 1440 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:28,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102856 states. [2023-12-16 06:06:29,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102856 to 26490. [2023-12-16 06:06:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26490 states, 26489 states have (on average 1.454226282607875) internal successors, (38521), 26489 states have internal predecessors, (38521), 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 06:06:29,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26490 states to 26490 states and 38521 transitions. [2023-12-16 06:06:29,564 INFO L78 Accepts]: Start accepts. Automaton has 26490 states and 38521 transitions. Word has length 99 [2023-12-16 06:06:29,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:29,564 INFO L495 AbstractCegarLoop]: Abstraction has 26490 states and 38521 transitions. [2023-12-16 06:06:29,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 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 06:06:29,565 INFO L276 IsEmpty]: Start isEmpty. Operand 26490 states and 38521 transitions. [2023-12-16 06:06:29,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:29,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:29,569 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:29,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:06:29,570 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:29,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:29,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1433430828, now seen corresponding path program 1 times [2023-12-16 06:06:29,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:29,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113160456] [2023-12-16 06:06:29,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:29,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:29,746 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 06:06:29,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:29,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113160456] [2023-12-16 06:06:29,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113160456] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:29,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:29,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:29,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509140983] [2023-12-16 06:06:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:29,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:29,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:29,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:29,748 INFO L87 Difference]: Start difference. First operand 26490 states and 38521 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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 06:06:31,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:31,450 INFO L93 Difference]: Finished difference Result 127114 states and 185601 transitions. [2023-12-16 06:06:31,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:31,451 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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 99 [2023-12-16 06:06:31,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:31,790 INFO L225 Difference]: With dead ends: 127114 [2023-12-16 06:06:31,790 INFO L226 Difference]: Without dead ends: 112840 [2023-12-16 06:06:31,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:06:31,816 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 1280 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 1525 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:31,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 1525 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:31,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112840 states. [2023-12-16 06:06:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112840 to 45754. [2023-12-16 06:06:33,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45754 states, 45753 states have (on average 1.4504185517889536) internal successors, (66361), 45753 states have internal predecessors, (66361), 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 06:06:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45754 states to 45754 states and 66361 transitions. [2023-12-16 06:06:33,460 INFO L78 Accepts]: Start accepts. Automaton has 45754 states and 66361 transitions. Word has length 99 [2023-12-16 06:06:33,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:33,461 INFO L495 AbstractCegarLoop]: Abstraction has 45754 states and 66361 transitions. [2023-12-16 06:06:33,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 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 06:06:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 45754 states and 66361 transitions. [2023-12-16 06:06:33,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:33,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:33,466 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:33,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:06:33,466 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:33,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:33,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1702013996, now seen corresponding path program 1 times [2023-12-16 06:06:33,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:33,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207786553] [2023-12-16 06:06:33,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:33,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 06:06:33,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:33,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207786553] [2023-12-16 06:06:33,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207786553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:33,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:33,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221496634] [2023-12-16 06:06:33,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:33,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:33,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:33,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:33,646 INFO L87 Difference]: Start difference. First operand 45754 states and 66361 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 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 06:06:35,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:35,966 INFO L93 Difference]: Finished difference Result 141386 states and 206273 transitions. [2023-12-16 06:06:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:35,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 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 99 [2023-12-16 06:06:35,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:36,200 INFO L225 Difference]: With dead ends: 141386 [2023-12-16 06:06:36,201 INFO L226 Difference]: Without dead ends: 127112 [2023-12-16 06:06:36,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:06:36,367 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 1377 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:36,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 1396 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:36,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127112 states. [2023-12-16 06:06:38,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127112 to 60026. [2023-12-16 06:06:38,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60026 states, 60025 states have (on average 1.4499458558933778) internal successors, (87033), 60025 states have internal predecessors, (87033), 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 06:06:38,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60026 states to 60026 states and 87033 transitions. [2023-12-16 06:06:38,343 INFO L78 Accepts]: Start accepts. Automaton has 60026 states and 87033 transitions. Word has length 99 [2023-12-16 06:06:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:38,344 INFO L495 AbstractCegarLoop]: Abstraction has 60026 states and 87033 transitions. [2023-12-16 06:06:38,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 9 states have internal predecessors, (92), 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 06:06:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 60026 states and 87033 transitions. [2023-12-16 06:06:38,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:38,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:38,349 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:38,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:06:38,349 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:38,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:38,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2007241172, now seen corresponding path program 1 times [2023-12-16 06:06:38,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:38,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369207842] [2023-12-16 06:06:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:38,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:38,483 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 06:06:38,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:38,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369207842] [2023-12-16 06:06:38,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369207842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:38,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:38,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:38,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422283969] [2023-12-16 06:06:38,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:38,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:38,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:38,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:38,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:38,485 INFO L87 Difference]: Start difference. First operand 60026 states and 87033 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 06:06:41,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:41,168 INFO L93 Difference]: Finished difference Result 155658 states and 226945 transitions. [2023-12-16 06:06:41,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 99 [2023-12-16 06:06:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:41,373 INFO L225 Difference]: With dead ends: 155658 [2023-12-16 06:06:41,373 INFO L226 Difference]: Without dead ends: 141384 [2023-12-16 06:06:41,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:06:41,403 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1460 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 1426 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:41,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 1426 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:41,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141384 states. [2023-12-16 06:06:43,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141384 to 74298. [2023-12-16 06:06:43,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74298 states, 74297 states have (on average 1.4496547639877788) internal successors, (107705), 74297 states have internal predecessors, (107705), 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 06:06:43,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74298 states to 74298 states and 107705 transitions. [2023-12-16 06:06:43,859 INFO L78 Accepts]: Start accepts. Automaton has 74298 states and 107705 transitions. Word has length 99 [2023-12-16 06:06:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:43,859 INFO L495 AbstractCegarLoop]: Abstraction has 74298 states and 107705 transitions. [2023-12-16 06:06:43,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 9 states have internal predecessors, (88), 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 06:06:43,859 INFO L276 IsEmpty]: Start isEmpty. Operand 74298 states and 107705 transitions. [2023-12-16 06:06:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:43,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:43,866 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:43,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:06:43,866 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:43,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:43,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1398992684, now seen corresponding path program 1 times [2023-12-16 06:06:43,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:43,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415212910] [2023-12-16 06:06:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:43,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:44,029 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 06:06:44,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:44,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415212910] [2023-12-16 06:06:44,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415212910] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:44,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:44,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:44,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386962211] [2023-12-16 06:06:44,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:44,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:44,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:44,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:44,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:44,030 INFO L87 Difference]: Start difference. First operand 74298 states and 107705 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 06:06:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:47,159 INFO L93 Difference]: Finished difference Result 169930 states and 247617 transitions. [2023-12-16 06:06:47,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:47,159 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 99 [2023-12-16 06:06:47,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:47,404 INFO L225 Difference]: With dead ends: 169930 [2023-12-16 06:06:47,404 INFO L226 Difference]: Without dead ends: 155656 [2023-12-16 06:06:47,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:06:47,449 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1331 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:47,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1457 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:47,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155656 states. [2023-12-16 06:06:50,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155656 to 88570. [2023-12-16 06:06:50,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88570 states, 88569 states have (on average 1.449457485124592) internal successors, (128377), 88569 states have internal predecessors, (128377), 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 06:06:50,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88570 states to 88570 states and 128377 transitions. [2023-12-16 06:06:50,431 INFO L78 Accepts]: Start accepts. Automaton has 88570 states and 128377 transitions. Word has length 99 [2023-12-16 06:06:50,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:50,431 INFO L495 AbstractCegarLoop]: Abstraction has 88570 states and 128377 transitions. [2023-12-16 06:06:50,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 06:06:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 88570 states and 128377 transitions. [2023-12-16 06:06:50,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:50,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:50,437 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:50,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:06:50,438 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:50,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1662070060, now seen corresponding path program 1 times [2023-12-16 06:06:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:50,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706164571] [2023-12-16 06:06:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:50,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 06:06:50,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:50,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706164571] [2023-12-16 06:06:50,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706164571] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:50,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:50,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036428932] [2023-12-16 06:06:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:50,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:50,594 INFO L87 Difference]: Start difference. First operand 88570 states and 128377 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 06:06:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:54,138 INFO L93 Difference]: Finished difference Result 184202 states and 268289 transitions. [2023-12-16 06:06:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:06:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 99 [2023-12-16 06:06:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:54,400 INFO L225 Difference]: With dead ends: 184202 [2023-12-16 06:06:54,400 INFO L226 Difference]: Without dead ends: 169928 [2023-12-16 06:06:54,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:06:54,444 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 1211 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1211 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:54,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1211 Valid, 1643 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:54,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169928 states. [2023-12-16 06:06:57,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169928 to 102842. [2023-12-16 06:06:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102842 states, 102841 states have (on average 1.4493149619315253) internal successors, (149049), 102841 states have internal predecessors, (149049), 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 06:06:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102842 states to 102842 states and 149049 transitions. [2023-12-16 06:06:57,828 INFO L78 Accepts]: Start accepts. Automaton has 102842 states and 149049 transitions. Word has length 99 [2023-12-16 06:06:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:57,829 INFO L495 AbstractCegarLoop]: Abstraction has 102842 states and 149049 transitions. [2023-12-16 06:06:57,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 9 states have internal predecessors, (90), 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 06:06:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 102842 states and 149049 transitions. [2023-12-16 06:06:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-16 06:06:57,834 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:57,835 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:06:57,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:06:57,835 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:57,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:57,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1023044140, now seen corresponding path program 1 times [2023-12-16 06:06:57,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:57,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708114843] [2023-12-16 06:06:57,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:57,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 06:06:57,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:57,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708114843] [2023-12-16 06:06:57,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708114843] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:57,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 06:06:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602367341] [2023-12-16 06:06:57,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:57,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 06:06:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 06:06:57,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-16 06:06:57,989 INFO L87 Difference]: Start difference. First operand 102842 states and 149049 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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 06:07:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:02,089 INFO L93 Difference]: Finished difference Result 198474 states and 288961 transitions. [2023-12-16 06:07:02,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 06:07:02,089 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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 99 [2023-12-16 06:07:02,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:02,422 INFO L225 Difference]: With dead ends: 198474 [2023-12-16 06:07:02,423 INFO L226 Difference]: Without dead ends: 184200 [2023-12-16 06:07:02,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 06:07:02,488 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 1219 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:02,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1716 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:07:02,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184200 states. [2023-12-16 06:07:06,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184200 to 117114. [2023-12-16 06:07:06,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117114 states, 117113 states have (on average 1.44920717597534) internal successors, (169721), 117113 states have internal predecessors, (169721), 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 06:07:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117114 states to 117114 states and 169721 transitions. [2023-12-16 06:07:06,709 INFO L78 Accepts]: Start accepts. Automaton has 117114 states and 169721 transitions. Word has length 99 [2023-12-16 06:07:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:06,709 INFO L495 AbstractCegarLoop]: Abstraction has 117114 states and 169721 transitions. [2023-12-16 06:07:06,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 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 06:07:06,709 INFO L276 IsEmpty]: Start isEmpty. Operand 117114 states and 169721 transitions. [2023-12-16 06:07:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-16 06:07:06,716 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:06,716 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:06,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 06:07:06,716 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:06,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:06,717 INFO L85 PathProgramCache]: Analyzing trace with hash -881999035, now seen corresponding path program 1 times [2023-12-16 06:07:06,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:06,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727124562] [2023-12-16 06:07:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:06,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:06,808 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:06,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:06,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727124562] [2023-12-16 06:07:06,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727124562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:06,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:06,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:06,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412502547] [2023-12-16 06:07:06,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:06,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:06,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:06,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:06,809 INFO L87 Difference]: Start difference. First operand 117114 states and 169721 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 06:07:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:09,778 INFO L93 Difference]: Finished difference Result 234174 states and 339387 transitions. [2023-12-16 06:07:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:09,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 100 [2023-12-16 06:07:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:09,961 INFO L225 Difference]: With dead ends: 234174 [2023-12-16 06:07:09,962 INFO L226 Difference]: Without dead ends: 117116 [2023-12-16 06:07:10,025 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 06:07:10,026 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 61 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:10,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 314 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:10,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117116 states. [2023-12-16 06:07:13,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117116 to 117114. [2023-12-16 06:07:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117114 states, 117113 states have (on average 1.4358183976159777) internal successors, (168153), 117113 states have internal predecessors, (168153), 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 06:07:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117114 states to 117114 states and 168153 transitions. [2023-12-16 06:07:13,806 INFO L78 Accepts]: Start accepts. Automaton has 117114 states and 168153 transitions. Word has length 100 [2023-12-16 06:07:13,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:13,807 INFO L495 AbstractCegarLoop]: Abstraction has 117114 states and 168153 transitions. [2023-12-16 06:07:13,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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 06:07:13,807 INFO L276 IsEmpty]: Start isEmpty. Operand 117114 states and 168153 transitions. [2023-12-16 06:07:13,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 06:07:13,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:13,811 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:13,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 06:07:13,811 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:13,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:13,811 INFO L85 PathProgramCache]: Analyzing trace with hash -356382852, now seen corresponding path program 1 times [2023-12-16 06:07:13,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:13,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527521587] [2023-12-16 06:07:13,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:13,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:13,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:13,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527521587] [2023-12-16 06:07:13,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527521587] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:13,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:13,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:13,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877013175] [2023-12-16 06:07:13,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:13,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:13,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:13,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:13,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:13,871 INFO L87 Difference]: Start difference. First operand 117114 states and 168153 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 06:07:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:15,322 INFO L93 Difference]: Finished difference Result 159572 states and 229650 transitions. [2023-12-16 06:07:15,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:15,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2023-12-16 06:07:15,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:15,375 INFO L225 Difference]: With dead ends: 159572 [2023-12-16 06:07:15,375 INFO L226 Difference]: Without dead ends: 42514 [2023-12-16 06:07:15,407 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 06:07:15,407 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 55 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:15,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 311 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:15,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42514 states. [2023-12-16 06:07:16,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42514 to 42507. [2023-12-16 06:07:16,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42507 states, 42506 states have (on average 1.4351385686726579) internal successors, (61002), 42506 states have internal predecessors, (61002), 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 06:07:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42507 states to 42507 states and 61002 transitions. [2023-12-16 06:07:16,697 INFO L78 Accepts]: Start accepts. Automaton has 42507 states and 61002 transitions. Word has length 101 [2023-12-16 06:07:16,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:16,697 INFO L495 AbstractCegarLoop]: Abstraction has 42507 states and 61002 transitions. [2023-12-16 06:07:16,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 06:07:16,698 INFO L276 IsEmpty]: Start isEmpty. Operand 42507 states and 61002 transitions. [2023-12-16 06:07:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-16 06:07:16,700 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:16,700 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:16,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 06:07:16,701 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:16,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:16,701 INFO L85 PathProgramCache]: Analyzing trace with hash -629692941, now seen corresponding path program 1 times [2023-12-16 06:07:16,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:16,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245179601] [2023-12-16 06:07:16,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:16,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245179601] [2023-12-16 06:07:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245179601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:16,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:16,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129672108] [2023-12-16 06:07:16,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:16,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:16,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:16,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:16,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:16,856 INFO L87 Difference]: Start difference. First operand 42507 states and 61002 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 06:07:17,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:17,456 INFO L93 Difference]: Finished difference Result 63727 states and 91468 transitions. [2023-12-16 06:07:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:17,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2023-12-16 06:07:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:17,476 INFO L225 Difference]: With dead ends: 63727 [2023-12-16 06:07:17,476 INFO L226 Difference]: Without dead ends: 21293 [2023-12-16 06:07:17,483 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 06:07:17,484 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 57 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:17,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 290 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:17,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21293 states. [2023-12-16 06:07:17,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21293 to 21291. [2023-12-16 06:07:17,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21291 states, 21290 states have (on average 1.4216063879755754) internal successors, (30266), 21290 states have internal predecessors, (30266), 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 06:07:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21291 states to 21291 states and 30266 transitions. [2023-12-16 06:07:18,084 INFO L78 Accepts]: Start accepts. Automaton has 21291 states and 30266 transitions. Word has length 102 [2023-12-16 06:07:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:18,084 INFO L495 AbstractCegarLoop]: Abstraction has 21291 states and 30266 transitions. [2023-12-16 06:07:18,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 06:07:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 21291 states and 30266 transitions. [2023-12-16 06:07:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-16 06:07:18,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:18,086 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:18,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 06:07:18,086 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:18,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:18,086 INFO L85 PathProgramCache]: Analyzing trace with hash 46578209, now seen corresponding path program 1 times [2023-12-16 06:07:18,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:18,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905360857] [2023-12-16 06:07:18,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:18,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:18,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905360857] [2023-12-16 06:07:18,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905360857] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:18,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:18,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:18,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115751653] [2023-12-16 06:07:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:18,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:18,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:18,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:18,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:18,161 INFO L87 Difference]: Start difference. First operand 21291 states and 30266 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 06:07:18,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:18,409 INFO L93 Difference]: Finished difference Result 31903 states and 45364 transitions. [2023-12-16 06:07:18,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:18,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2023-12-16 06:07:18,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:18,422 INFO L225 Difference]: With dead ends: 31903 [2023-12-16 06:07:18,422 INFO L226 Difference]: Without dead ends: 10685 [2023-12-16 06:07:18,435 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 06:07:18,436 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 54 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:18,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 275 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:18,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10685 states. [2023-12-16 06:07:18,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10685 to 10683. [2023-12-16 06:07:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10683 states, 10682 states have (on average 1.4074143418835423) internal successors, (15034), 10682 states have internal predecessors, (15034), 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 06:07:18,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10683 states to 10683 states and 15034 transitions. [2023-12-16 06:07:18,806 INFO L78 Accepts]: Start accepts. Automaton has 10683 states and 15034 transitions. Word has length 104 [2023-12-16 06:07:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:18,806 INFO L495 AbstractCegarLoop]: Abstraction has 10683 states and 15034 transitions. [2023-12-16 06:07:18,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 06:07:18,806 INFO L276 IsEmpty]: Start isEmpty. Operand 10683 states and 15034 transitions. [2023-12-16 06:07:18,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-16 06:07:18,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:18,807 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:18,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 06:07:18,808 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:18,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:18,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1415176143, now seen corresponding path program 1 times [2023-12-16 06:07:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:18,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567526358] [2023-12-16 06:07:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:18,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:18,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:18,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567526358] [2023-12-16 06:07:18,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567526358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:18,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:18,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:18,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267928283] [2023-12-16 06:07:18,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:18,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:18,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:18,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:18,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:18,915 INFO L87 Difference]: Start difference. First operand 10683 states and 15034 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 06:07:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:19,044 INFO L93 Difference]: Finished difference Result 15991 states and 22516 transitions. [2023-12-16 06:07:19,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 106 [2023-12-16 06:07:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:19,049 INFO L225 Difference]: With dead ends: 15991 [2023-12-16 06:07:19,050 INFO L226 Difference]: Without dead ends: 5381 [2023-12-16 06:07:19,055 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 06:07:19,056 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 51 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:19,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 260 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:19,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2023-12-16 06:07:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5379. [2023-12-16 06:07:19,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5379 states, 5378 states have (on average 1.3919672740795834) internal successors, (7486), 5378 states have internal predecessors, (7486), 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 06:07:19,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5379 states to 5379 states and 7486 transitions. [2023-12-16 06:07:19,185 INFO L78 Accepts]: Start accepts. Automaton has 5379 states and 7486 transitions. Word has length 106 [2023-12-16 06:07:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:19,185 INFO L495 AbstractCegarLoop]: Abstraction has 5379 states and 7486 transitions. [2023-12-16 06:07:19,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 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 06:07:19,185 INFO L276 IsEmpty]: Start isEmpty. Operand 5379 states and 7486 transitions. [2023-12-16 06:07:19,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-16 06:07:19,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:19,186 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:19,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 06:07:19,186 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:19,186 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:19,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1152911619, now seen corresponding path program 1 times [2023-12-16 06:07:19,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:19,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276561365] [2023-12-16 06:07:19,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:19,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:19,251 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:19,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:19,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276561365] [2023-12-16 06:07:19,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276561365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:19,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:19,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:19,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059534066] [2023-12-16 06:07:19,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:19,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:19,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:19,252 INFO L87 Difference]: Start difference. First operand 5379 states and 7486 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 06:07:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:19,315 INFO L93 Difference]: Finished difference Result 8035 states and 11194 transitions. [2023-12-16 06:07:19,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:19,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 108 [2023-12-16 06:07:19,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:19,318 INFO L225 Difference]: With dead ends: 8035 [2023-12-16 06:07:19,318 INFO L226 Difference]: Without dead ends: 2729 [2023-12-16 06:07:19,321 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 06:07:19,322 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 48 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:19,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 245 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:19,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2023-12-16 06:07:19,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2727. [2023-12-16 06:07:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 2726 states have (on average 1.3741746148202494) internal successors, (3746), 2726 states have internal predecessors, (3746), 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 06:07:19,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3746 transitions. [2023-12-16 06:07:19,389 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3746 transitions. Word has length 108 [2023-12-16 06:07:19,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:19,389 INFO L495 AbstractCegarLoop]: Abstraction has 2727 states and 3746 transitions. [2023-12-16 06:07:19,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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 06:07:19,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3746 transitions. [2023-12-16 06:07:19,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-16 06:07:19,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:19,390 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:07:19,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-16 06:07:19,390 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:19,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash 767549355, now seen corresponding path program 1 times [2023-12-16 06:07:19,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:19,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246907076] [2023-12-16 06:07:19,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:19,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:19,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246907076] [2023-12-16 06:07:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246907076] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:19,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:19,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:07:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035800274] [2023-12-16 06:07:19,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:19,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:07:19,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:19,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:07:19,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:07:19,457 INFO L87 Difference]: Start difference. First operand 2727 states and 3746 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 06:07:19,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:19,490 INFO L93 Difference]: Finished difference Result 4057 states and 5584 transitions. [2023-12-16 06:07:19,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:07:19,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 110 [2023-12-16 06:07:19,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:19,492 INFO L225 Difference]: With dead ends: 4057 [2023-12-16 06:07:19,492 INFO L226 Difference]: Without dead ends: 1403 [2023-12-16 06:07:19,494 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 06:07:19,494 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 45 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:19,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 230 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:07:19,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2023-12-16 06:07:19,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1401. [2023-12-16 06:07:19,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1400 states have (on average 1.352142857142857) internal successors, (1893), 1400 states have internal predecessors, (1893), 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 06:07:19,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1893 transitions. [2023-12-16 06:07:19,524 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1893 transitions. Word has length 110 [2023-12-16 06:07:19,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:19,525 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 1893 transitions. [2023-12-16 06:07:19,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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 06:07:19,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1893 transitions. [2023-12-16 06:07:19,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-16 06:07:19,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:19,525 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 06:07:19,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 06:07:19,526 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:19,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:19,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1510504921, now seen corresponding path program 1 times [2023-12-16 06:07:19,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:19,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387526077] [2023-12-16 06:07:19,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:19,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 06:07:19,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:19,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387526077] [2023-12-16 06:07:19,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387526077] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 06:07:19,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040897543] [2023-12-16 06:07:19,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:19,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 06:07:19,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:07:19,858 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 06:07:19,875 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 06:07:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:19,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 06:07:19,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 06:07:20,154 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:07:20,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 06:07:20,308 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 06:07:20,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040897543] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 06:07:20,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 06:07:20,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 13 [2023-12-16 06:07:20,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583275447] [2023-12-16 06:07:20,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 06:07:20,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-16 06:07:20,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:20,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-16 06:07:20,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-16 06:07:20,310 INFO L87 Difference]: Start difference. First operand 1401 states and 1893 transitions. Second operand has 13 states, 13 states have (on average 24.846153846153847) internal successors, (323), 13 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2023-12-16 06:07:21,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-16 06:07:21,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2023-12-16 06:07:21,424 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1413 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:21,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 579 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 06:07:21,425 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:07:21,430 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:07:21,434 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 06:07:21,447 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 06:07:21,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-12-16 06:07:21,627 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1401states) and FLOYD_HOARE automaton (currently 24 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (6643 states constructed, input type IntersectNwa). [2023-12-16 06:07:21,630 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:07:21,632 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:07:21,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:07:21 BoogieIcfgContainer [2023-12-16 06:07:21,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:07:21,633 INFO L158 Benchmark]: Toolchain (without parser) took 60614.63ms. Allocated memory was 199.2MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 148.5MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 06:07:21,633 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:07:21,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.70ms. Allocated memory is still 199.2MB. Free memory was 148.1MB in the beginning and 130.6MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 06:07:21,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.64ms. Allocated memory is still 199.2MB. Free memory was 130.6MB in the beginning and 127.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 06:07:21,634 INFO L158 Benchmark]: Boogie Preprocessor took 60.28ms. Allocated memory is still 199.2MB. Free memory was 127.5MB in the beginning and 123.7MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 06:07:21,634 INFO L158 Benchmark]: RCFGBuilder took 587.49ms. Allocated memory is still 199.2MB. Free memory was 123.7MB in the beginning and 145.9MB in the end (delta: -22.2MB). Peak memory consumption was 20.7MB. Max. memory is 8.0GB. [2023-12-16 06:07:21,634 INFO L158 Benchmark]: TraceAbstraction took 59623.49ms. Allocated memory was 199.2MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 145.4MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 06:07:21,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 154.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 288.70ms. Allocated memory is still 199.2MB. Free memory was 148.1MB in the beginning and 130.6MB in the end (delta: 17.5MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.64ms. Allocated memory is still 199.2MB. Free memory was 130.6MB in the beginning and 127.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.28ms. Allocated memory is still 199.2MB. Free memory was 127.5MB in the beginning and 123.7MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 587.49ms. Allocated memory is still 199.2MB. Free memory was 123.7MB in the beginning and 145.9MB in the end (delta: -22.2MB). Peak memory consumption was 20.7MB. Max. memory is 8.0GB. * TraceAbstraction took 59623.49ms. Allocated memory was 199.2MB in the beginning and 7.6GB in the end (delta: 7.4GB). Free memory was 145.4MB in the beginning and 4.5GB in the end (delta: -4.4GB). Peak memory consumption was 3.0GB. 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: 584]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 584). Cancelled while NwaCegarLoop was constructing difference of abstraction (1401states) and FLOYD_HOARE automaton (currently 24 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (6643 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 109 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.6s, OverallIterations: 28, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13031 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13031 mSDsluCounter, 20441 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15367 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2624 IncrementalHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 5074 mSDtfsCounter, 2624 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 449 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117114occurred in iteration=20, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 25.1s AutomataMinimizationTime, 27 MinimizatonAttempts, 479559 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2534 NumberOfCodeBlocks, 2534 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2616 ConstructedInterpolants, 0 QuantifiedInterpolants, 14763 SizeOfPredicates, 3 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 30 InterpolantComputations, 27 PerfectInterpolantSequences, 294/326 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