/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.8.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 06:06:45,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 06:06:45,831 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 06:06:45,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 06:06:45,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 06:06:45,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 06:06:45,863 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 06:06:45,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 06:06:45,864 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 06:06:45,867 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 06:06:45,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 06:06:45,868 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 06:06:45,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 06:06:45,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 06:06:45,869 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 06:06:45,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 06:06:45,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 06:06:45,870 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 06:06:45,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 06:06:45,870 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 06:06:45,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 06:06:45,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 06:06:45,872 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 06:06:45,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:06:45,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 06:06:45,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 06:06:45,874 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 06:06:45,874 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 06:06:45,874 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 06:06:45,874 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 06:06:45,874 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 06:06:45,874 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 06:06:46,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 06:06:46,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 06:06:46,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 06:06:46,075 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 06:06:46,075 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 06:06:46,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c [2023-12-16 06:06:47,262 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 06:06:47,558 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 06:06:47,558 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.8.ufo.UNBOUNDED.pals.c [2023-12-16 06:06:47,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8491c3333/f55386c65a914476bba5f40e1f14247d/FLAGc69e643d7 [2023-12-16 06:06:47,583 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8491c3333/f55386c65a914476bba5f40e1f14247d [2023-12-16 06:06:47,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 06:06:47,586 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 06:06:47,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 06:06:47,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 06:06:47,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 06:06:47,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:06:47" (1/1) ... [2023-12-16 06:06:47,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6f358b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:47, skipping insertion in model container [2023-12-16 06:06:47,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 06:06:47" (1/1) ... [2023-12-16 06:06:47,649 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 06:06:47,891 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.8.ufo.UNBOUNDED.pals.c[26481,26494] [2023-12-16 06:06:47,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:06:47,915 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 06:06:48,020 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.8.ufo.UNBOUNDED.pals.c[26481,26494] [2023-12-16 06:06:48,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 06:06:48,052 INFO L206 MainTranslator]: Completed translation [2023-12-16 06:06:48,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48 WrapperNode [2023-12-16 06:06:48,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 06:06:48,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 06:06:48,054 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 06:06:48,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 06:06:48,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,109 INFO L138 Inliner]: procedures = 28, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 522 [2023-12-16 06:06:48,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 06:06:48,110 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 06:06:48,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 06:06:48,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 06:06:48,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,135 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,163 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 06:06:48,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 06:06:48,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 06:06:48,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 06:06:48,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 06:06:48,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (1/1) ... [2023-12-16 06:06:48,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 06:06:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 06:06:48,310 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 06:06:48,390 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 06:06:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 06:06:48,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 06:06:48,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 06:06:48,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 06:06:48,581 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 06:06:48,582 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 06:06:49,044 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 06:06:49,101 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 06:06:49,101 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 06:06:49,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:06:49 BoogieIcfgContainer [2023-12-16 06:06:49,102 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 06:06:49,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 06:06:49,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 06:06:49,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 06:06:49,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 06:06:47" (1/3) ... [2023-12-16 06:06:49,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d32f213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:06:49, skipping insertion in model container [2023-12-16 06:06:49,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 06:06:48" (2/3) ... [2023-12-16 06:06:49,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d32f213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 06:06:49, skipping insertion in model container [2023-12-16 06:06:49,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 06:06:49" (3/3) ... [2023-12-16 06:06:49,109 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.UNBOUNDED.pals.c [2023-12-16 06:06:49,120 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 06:06:49,121 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 06:06:49,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 06:06:49,162 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;@1ad7c22d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 06:06:49,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 06:06:49,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 126 states have (on average 1.8253968253968254) internal successors, (230), 127 states have internal predecessors, (230), 0 states have call successors, (0), 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 06:06:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 06:06:49,171 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:49,171 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] [2023-12-16 06:06:49,171 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:49,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:49,175 INFO L85 PathProgramCache]: Analyzing trace with hash -19168985, now seen corresponding path program 1 times [2023-12-16 06:06:49,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:49,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400743845] [2023-12-16 06:06:49,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:49,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:49,442 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 06:06:49,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:49,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400743845] [2023-12-16 06:06:49,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400743845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:49,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:49,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 06:06:49,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627368934] [2023-12-16 06:06:49,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:49,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 06:06:49,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:49,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 06:06:49,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 06:06:49,484 INFO L87 Difference]: Start difference. First operand has 128 states, 126 states have (on average 1.8253968253968254) internal successors, (230), 127 states have internal predecessors, (230), 0 states have call successors, (0), 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 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 06:06:49,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:49,525 INFO L93 Difference]: Finished difference Result 190 states and 333 transitions. [2023-12-16 06:06:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 06:06:49,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-16 06:06:49,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:49,544 INFO L225 Difference]: With dead ends: 190 [2023-12-16 06:06:49,544 INFO L226 Difference]: Without dead ends: 126 [2023-12-16 06:06:49,546 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 06:06:49,549 INFO L413 NwaCegarLoop]: 222 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, 222 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 06:06:49,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:49,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-16 06:06:49,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-12-16 06:06:49,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.8) internal successors, (225), 125 states have internal predecessors, (225), 0 states have call successors, (0), 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 06:06:49,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 225 transitions. [2023-12-16 06:06:49,611 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 225 transitions. Word has length 26 [2023-12-16 06:06:49,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:49,612 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 225 transitions. [2023-12-16 06:06:49,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 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 06:06:49,612 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 225 transitions. [2023-12-16 06:06:49,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 06:06:49,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:49,614 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] [2023-12-16 06:06:49,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 06:06:49,614 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:49,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:49,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1824607319, now seen corresponding path program 1 times [2023-12-16 06:06:49,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:49,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377078693] [2023-12-16 06:06:49,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:49,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:49,867 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 06:06:49,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:49,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377078693] [2023-12-16 06:06:49,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377078693] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:49,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:49,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 06:06:49,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515884776] [2023-12-16 06:06:49,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:49,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 06:06:49,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:49,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 06:06:49,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 06:06:49,875 INFO L87 Difference]: Start difference. First operand 126 states and 225 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 06:06:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:50,002 INFO L93 Difference]: Finished difference Result 190 states and 327 transitions. [2023-12-16 06:06:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 06:06:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 26 [2023-12-16 06:06:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:50,003 INFO L225 Difference]: With dead ends: 190 [2023-12-16 06:06:50,003 INFO L226 Difference]: Without dead ends: 126 [2023-12-16 06:06:50,004 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 06:06:50,004 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:50,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:50,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-16 06:06:50,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-12-16 06:06:50,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.312) internal successors, (164), 125 states have internal predecessors, (164), 0 states have call successors, (0), 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 06:06:50,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 164 transitions. [2023-12-16 06:06:50,010 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 164 transitions. Word has length 26 [2023-12-16 06:06:50,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:50,010 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 164 transitions. [2023-12-16 06:06:50,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 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 06:06:50,010 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 164 transitions. [2023-12-16 06:06:50,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-16 06:06:50,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:50,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:50,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 06:06:50,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:50,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:50,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2057891815, now seen corresponding path program 1 times [2023-12-16 06:06:50,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:50,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522181002] [2023-12-16 06:06:50,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:50,764 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 06:06:50,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:50,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522181002] [2023-12-16 06:06:50,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522181002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:50,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:50,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:06:50,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484763045] [2023-12-16 06:06:50,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:50,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:06:50,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:50,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:06:50,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:06:50,770 INFO L87 Difference]: Start difference. First operand 126 states and 164 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 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 06:06:51,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:51,396 INFO L93 Difference]: Finished difference Result 1102 states and 1748 transitions. [2023-12-16 06:06:51,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 06:06:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 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 86 [2023-12-16 06:06:51,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:51,404 INFO L225 Difference]: With dead ends: 1102 [2023-12-16 06:06:51,404 INFO L226 Difference]: Without dead ends: 1041 [2023-12-16 06:06:51,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2023-12-16 06:06:51,409 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 1956 mSDsluCounter, 4284 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 4439 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:51,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 4439 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:06:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-12-16 06:06:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 185. [2023-12-16 06:06:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4130434782608696) internal successors, (260), 184 states have internal predecessors, (260), 0 states have call successors, (0), 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 06:06:51,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 260 transitions. [2023-12-16 06:06:51,444 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 260 transitions. Word has length 86 [2023-12-16 06:06:51,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:51,447 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 260 transitions. [2023-12-16 06:06:51,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 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 06:06:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 260 transitions. [2023-12-16 06:06:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:06:51,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:51,456 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:51,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 06:06:51,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:51,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:51,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1585272361, now seen corresponding path program 1 times [2023-12-16 06:06:51,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:51,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154916366] [2023-12-16 06:06:51,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:51,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:51,579 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 06:06:51,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:51,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154916366] [2023-12-16 06:06:51,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154916366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:51,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:51,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:51,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591273875] [2023-12-16 06:06:51,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:51,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:51,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:51,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:51,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:51,581 INFO L87 Difference]: Start difference. First operand 185 states and 260 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 06:06:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:51,601 INFO L93 Difference]: Finished difference Result 414 states and 631 transitions. [2023-12-16 06:06:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:51,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 88 [2023-12-16 06:06:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:51,604 INFO L225 Difference]: With dead ends: 414 [2023-12-16 06:06:51,604 INFO L226 Difference]: Without dead ends: 294 [2023-12-16 06:06:51,605 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 06:06:51,606 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 68 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:51,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 248 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-16 06:06:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 290. [2023-12-16 06:06:51,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.480968858131488) internal successors, (428), 289 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:06:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 428 transitions. [2023-12-16 06:06:51,617 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 428 transitions. Word has length 88 [2023-12-16 06:06:51,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:51,618 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 428 transitions. [2023-12-16 06:06:51,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 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 06:06:51,618 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 428 transitions. [2023-12-16 06:06:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-16 06:06:51,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:51,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:51,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 06:06:51,621 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:51,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:51,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1587417313, now seen corresponding path program 1 times [2023-12-16 06:06:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:51,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242354047] [2023-12-16 06:06:51,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:51,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:52,081 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 06:06:52,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:52,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242354047] [2023-12-16 06:06:52,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242354047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:52,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:52,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:06:52,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694273418] [2023-12-16 06:06:52,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:52,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:06:52,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:52,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:06:52,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:06:52,085 INFO L87 Difference]: Start difference. First operand 290 states and 428 transitions. Second operand has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 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 06:06:52,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:52,408 INFO L93 Difference]: Finished difference Result 517 states and 792 transitions. [2023-12-16 06:06:52,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:06:52,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 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 88 [2023-12-16 06:06:52,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:52,411 INFO L225 Difference]: With dead ends: 517 [2023-12-16 06:06:52,411 INFO L226 Difference]: Without dead ends: 292 [2023-12-16 06:06:52,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2023-12-16 06:06:52,414 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 222 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:06:52,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 820 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:06:52,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-12-16 06:06:52,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2023-12-16 06:06:52,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.4740484429065743) internal successors, (426), 289 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:06:52,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 426 transitions. [2023-12-16 06:06:52,421 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 426 transitions. Word has length 88 [2023-12-16 06:06:52,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:52,422 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 426 transitions. [2023-12-16 06:06:52,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.8) internal successors, (88), 10 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 06:06:52,423 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 426 transitions. [2023-12-16 06:06:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-16 06:06:52,423 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:52,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:52,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 06:06:52,424 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:52,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1951224140, now seen corresponding path program 1 times [2023-12-16 06:06:52,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:52,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566627844] [2023-12-16 06:06:52,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:52,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:52,702 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 06:06:52,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:52,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566627844] [2023-12-16 06:06:52,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566627844] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:52,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:52,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 06:06:52,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312354471] [2023-12-16 06:06:52,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:52,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 06:06:52,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 06:06:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 06:06:52,704 INFO L87 Difference]: Start difference. First operand 290 states and 426 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 06:06:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:52,727 INFO L93 Difference]: Finished difference Result 298 states and 435 transitions. [2023-12-16 06:06:52,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 06:06:52,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 89 [2023-12-16 06:06:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:52,742 INFO L225 Difference]: With dead ends: 298 [2023-12-16 06:06:52,742 INFO L226 Difference]: Without dead ends: 296 [2023-12-16 06:06:52,742 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 06:06:52,742 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 2 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 785 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 06:06:52,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 785 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:52,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-12-16 06:06:52,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2023-12-16 06:06:52,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 293 states have (on average 1.4641638225255973) internal successors, (429), 293 states have internal predecessors, (429), 0 states have call successors, (0), 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 06:06:52,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 429 transitions. [2023-12-16 06:06:52,748 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 429 transitions. Word has length 89 [2023-12-16 06:06:52,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:52,748 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 429 transitions. [2023-12-16 06:06:52,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 0 states have call successors, (0), 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 06:06:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 429 transitions. [2023-12-16 06:06:52,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:52,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:52,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:52,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 06:06:52,749 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:52,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:52,750 INFO L85 PathProgramCache]: Analyzing trace with hash -945069983, now seen corresponding path program 1 times [2023-12-16 06:06:52,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:52,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915845657] [2023-12-16 06:06:52,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:52,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:52,802 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 06:06:52,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:52,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915845657] [2023-12-16 06:06:52,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915845657] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:52,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:52,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:52,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97084854] [2023-12-16 06:06:52,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:52,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:52,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:52,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:52,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:52,804 INFO L87 Difference]: Start difference. First operand 294 states and 429 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:52,819 INFO L93 Difference]: Finished difference Result 736 states and 1129 transitions. [2023-12-16 06:06:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:52,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:52,820 INFO L225 Difference]: With dead ends: 736 [2023-12-16 06:06:52,821 INFO L226 Difference]: Without dead ends: 507 [2023-12-16 06:06:52,821 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 06:06:52,821 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 87 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 339 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 06:06:52,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 339 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:52,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-12-16 06:06:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 505. [2023-12-16 06:06:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 504 states have (on average 1.507936507936508) internal successors, (760), 504 states have internal predecessors, (760), 0 states have call successors, (0), 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 06:06:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 760 transitions. [2023-12-16 06:06:52,830 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 760 transitions. Word has length 90 [2023-12-16 06:06:52,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:52,830 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 760 transitions. [2023-12-16 06:06:52,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 760 transitions. [2023-12-16 06:06:52,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:52,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:52,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:52,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 06:06:52,832 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:52,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:52,832 INFO L85 PathProgramCache]: Analyzing trace with hash -189685919, now seen corresponding path program 1 times [2023-12-16 06:06:52,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:52,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998338885] [2023-12-16 06:06:52,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:52,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:52,899 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 06:06:52,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:52,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998338885] [2023-12-16 06:06:52,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998338885] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:52,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:52,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:52,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437911722] [2023-12-16 06:06:52,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:52,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:52,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:52,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:52,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:52,901 INFO L87 Difference]: Start difference. First operand 505 states and 760 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:52,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:52,923 INFO L93 Difference]: Finished difference Result 1353 states and 2094 transitions. [2023-12-16 06:06:52,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:52,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:52,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:52,926 INFO L225 Difference]: With dead ends: 1353 [2023-12-16 06:06:52,926 INFO L226 Difference]: Without dead ends: 913 [2023-12-16 06:06:52,927 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 06:06:52,927 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 85 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 341 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 06:06:52,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 341 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:52,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2023-12-16 06:06:52,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 911. [2023-12-16 06:06:52,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.5274725274725274) internal successors, (1390), 910 states have internal predecessors, (1390), 0 states have call successors, (0), 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 06:06:52,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1390 transitions. [2023-12-16 06:06:52,943 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1390 transitions. Word has length 90 [2023-12-16 06:06:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:52,943 INFO L495 AbstractCegarLoop]: Abstraction has 911 states and 1390 transitions. [2023-12-16 06:06:52,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:52,943 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1390 transitions. [2023-12-16 06:06:52,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:52,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:52,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:52,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 06:06:52,944 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:52,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:52,945 INFO L85 PathProgramCache]: Analyzing trace with hash -600072607, now seen corresponding path program 1 times [2023-12-16 06:06:52,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:52,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251204523] [2023-12-16 06:06:52,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:52,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:52,990 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 06:06:52,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:52,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251204523] [2023-12-16 06:06:52,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251204523] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:52,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:52,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:52,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868012290] [2023-12-16 06:06:52,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:52,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:52,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:52,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:52,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:52,992 INFO L87 Difference]: Start difference. First operand 911 states and 1390 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:53,019 INFO L93 Difference]: Finished difference Result 2539 states and 3928 transitions. [2023-12-16 06:06:53,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:53,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:53,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:53,024 INFO L225 Difference]: With dead ends: 2539 [2023-12-16 06:06:53,025 INFO L226 Difference]: Without dead ends: 1693 [2023-12-16 06:06:53,044 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 06:06:53,044 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 83 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 343 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 06:06:53,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 343 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2023-12-16 06:06:53,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 1691. [2023-12-16 06:06:53,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1690 states have (on average 1.5301775147928993) internal successors, (2586), 1690 states have internal predecessors, (2586), 0 states have call successors, (0), 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 06:06:53,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2586 transitions. [2023-12-16 06:06:53,109 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2586 transitions. Word has length 90 [2023-12-16 06:06:53,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:53,110 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 2586 transitions. [2023-12-16 06:06:53,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:53,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2586 transitions. [2023-12-16 06:06:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:53,110 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:53,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:53,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 06:06:53,111 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:53,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash -868655775, now seen corresponding path program 1 times [2023-12-16 06:06:53,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:53,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119465118] [2023-12-16 06:06:53,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:53,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:53,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:53,244 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 06:06:53,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:53,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119465118] [2023-12-16 06:06:53,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119465118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:53,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:53,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:53,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290652848] [2023-12-16 06:06:53,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:53,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:53,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:53,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:53,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:53,246 INFO L87 Difference]: Start difference. First operand 1691 states and 2586 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:53,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:53,293 INFO L93 Difference]: Finished difference Result 4815 states and 7404 transitions. [2023-12-16 06:06:53,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:53,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:53,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:53,301 INFO L225 Difference]: With dead ends: 4815 [2023-12-16 06:06:53,301 INFO L226 Difference]: Without dead ends: 3189 [2023-12-16 06:06:53,303 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 06:06:53,303 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 81 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 345 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 06:06:53,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 345 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:53,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3189 states. [2023-12-16 06:06:53,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3189 to 3187. [2023-12-16 06:06:53,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3187 states, 3186 states have (on average 1.522284996861268) internal successors, (4850), 3186 states have internal predecessors, (4850), 0 states have call successors, (0), 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 06:06:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3187 states to 3187 states and 4850 transitions. [2023-12-16 06:06:53,361 INFO L78 Accepts]: Start accepts. Automaton has 3187 states and 4850 transitions. Word has length 90 [2023-12-16 06:06:53,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:53,361 INFO L495 AbstractCegarLoop]: Abstraction has 3187 states and 4850 transitions. [2023-12-16 06:06:53,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:53,361 INFO L276 IsEmpty]: Start isEmpty. Operand 3187 states and 4850 transitions. [2023-12-16 06:06:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:53,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:53,362 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:53,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 06:06:53,362 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:53,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1454367903, now seen corresponding path program 1 times [2023-12-16 06:06:53,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680956957] [2023-12-16 06:06:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:53,417 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 06:06:53,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:53,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680956957] [2023-12-16 06:06:53,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680956957] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:53,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:53,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:53,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874907078] [2023-12-16 06:06:53,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:53,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:53,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:53,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:53,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:53,418 INFO L87 Difference]: Start difference. First operand 3187 states and 4850 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:53,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:53,497 INFO L93 Difference]: Finished difference Result 9175 states and 13972 transitions. [2023-12-16 06:06:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:53,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:53,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:53,513 INFO L225 Difference]: With dead ends: 9175 [2023-12-16 06:06:53,513 INFO L226 Difference]: Without dead ends: 6053 [2023-12-16 06:06:53,518 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 06:06:53,519 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 77 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 341 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 06:06:53,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 341 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:53,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2023-12-16 06:06:53,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 6051. [2023-12-16 06:06:53,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6051 states, 6050 states have (on average 1.5077685950413222) internal successors, (9122), 6050 states have internal predecessors, (9122), 0 states have call successors, (0), 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 06:06:53,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6051 states to 6051 states and 9122 transitions. [2023-12-16 06:06:53,859 INFO L78 Accepts]: Start accepts. Automaton has 6051 states and 9122 transitions. Word has length 90 [2023-12-16 06:06:53,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:53,859 INFO L495 AbstractCegarLoop]: Abstraction has 6051 states and 9122 transitions. [2023-12-16 06:06:53,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:53,859 INFO L276 IsEmpty]: Start isEmpty. Operand 6051 states and 9122 transitions. [2023-12-16 06:06:53,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:53,860 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:53,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:53,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 06:06:53,860 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:53,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash -565634463, now seen corresponding path program 1 times [2023-12-16 06:06:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378715188] [2023-12-16 06:06:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:53,907 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 06:06:53,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:53,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378715188] [2023-12-16 06:06:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378715188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:53,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:53,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598390348] [2023-12-16 06:06:53,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:53,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:53,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:53,908 INFO L87 Difference]: Start difference. First operand 6051 states and 9122 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:54,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:54,060 INFO L93 Difference]: Finished difference Result 17511 states and 26340 transitions. [2023-12-16 06:06:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:54,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:54,094 INFO L225 Difference]: With dead ends: 17511 [2023-12-16 06:06:54,094 INFO L226 Difference]: Without dead ends: 11525 [2023-12-16 06:06:54,104 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 06:06:54,105 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 75 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 343 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 06:06:54,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 343 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:54,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11525 states. [2023-12-16 06:06:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11525 to 11523. [2023-12-16 06:06:54,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11523 states, 11522 states have (on average 1.4888040270786322) internal successors, (17154), 11522 states have internal predecessors, (17154), 0 states have call successors, (0), 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 06:06:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11523 states to 11523 states and 17154 transitions. [2023-12-16 06:06:54,456 INFO L78 Accepts]: Start accepts. Automaton has 11523 states and 17154 transitions. Word has length 90 [2023-12-16 06:06:54,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:54,456 INFO L495 AbstractCegarLoop]: Abstraction has 11523 states and 17154 transitions. [2023-12-16 06:06:54,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 11523 states and 17154 transitions. [2023-12-16 06:06:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-16 06:06:54,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:54,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:54,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 06:06:54,458 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:54,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash -828711839, now seen corresponding path program 1 times [2023-12-16 06:06:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:54,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471567263] [2023-12-16 06:06:54,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:54,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:54,513 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 06:06:54,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:54,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471567263] [2023-12-16 06:06:54,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471567263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:54,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:54,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:54,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510699255] [2023-12-16 06:06:54,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:54,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:54,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:54,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:54,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:54,515 INFO L87 Difference]: Start difference. First operand 11523 states and 17154 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:54,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:54,900 INFO L93 Difference]: Finished difference Result 33415 states and 49540 transitions. [2023-12-16 06:06:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:54,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 90 [2023-12-16 06:06:54,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:54,937 INFO L225 Difference]: With dead ends: 33415 [2023-12-16 06:06:54,937 INFO L226 Difference]: Without dead ends: 21957 [2023-12-16 06:06:54,949 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 06:06:54,950 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 79 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 347 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 06:06:54,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 347 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:54,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21957 states. [2023-12-16 06:06:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21957 to 21955. [2023-12-16 06:06:55,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21955 states, 21954 states have (on average 1.4664298077799034) internal successors, (32194), 21954 states have internal predecessors, (32194), 0 states have call successors, (0), 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 06:06:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21955 states to 21955 states and 32194 transitions. [2023-12-16 06:06:55,468 INFO L78 Accepts]: Start accepts. Automaton has 21955 states and 32194 transitions. Word has length 90 [2023-12-16 06:06:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:55,468 INFO L495 AbstractCegarLoop]: Abstraction has 21955 states and 32194 transitions. [2023-12-16 06:06:55,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 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 06:06:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 21955 states and 32194 transitions. [2023-12-16 06:06:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 06:06:55,469 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:55,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:55,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 06:06:55,469 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:55,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1361852954, now seen corresponding path program 1 times [2023-12-16 06:06:55,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:55,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70942002] [2023-12-16 06:06:55,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:55,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:55,569 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 06:06:55,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70942002] [2023-12-16 06:06:55,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70942002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:55,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:55,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 06:06:55,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878538519] [2023-12-16 06:06:55,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:55,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 06:06:55,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:55,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 06:06:55,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 06:06:55,571 INFO L87 Difference]: Start difference. First operand 21955 states and 32194 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 06:06:55,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:06:55,909 INFO L93 Difference]: Finished difference Result 44490 states and 65736 transitions. [2023-12-16 06:06:55,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 06:06:55,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 92 [2023-12-16 06:06:55,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:06:55,969 INFO L225 Difference]: With dead ends: 44490 [2023-12-16 06:06:55,970 INFO L226 Difference]: Without dead ends: 32455 [2023-12-16 06:06:55,993 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 06:06:55,994 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 86 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 340 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 06:06:55,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 340 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 06:06:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32455 states. [2023-12-16 06:06:56,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32455 to 32453. [2023-12-16 06:06:56,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32453 states, 32452 states have (on average 1.4614815727844201) internal successors, (47428), 32452 states have internal predecessors, (47428), 0 states have call successors, (0), 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 06:06:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32453 states to 32453 states and 47428 transitions. [2023-12-16 06:06:56,999 INFO L78 Accepts]: Start accepts. Automaton has 32453 states and 47428 transitions. Word has length 92 [2023-12-16 06:06:56,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:06:56,999 INFO L495 AbstractCegarLoop]: Abstraction has 32453 states and 47428 transitions. [2023-12-16 06:06:56,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 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 06:06:56,999 INFO L276 IsEmpty]: Start isEmpty. Operand 32453 states and 47428 transitions. [2023-12-16 06:06:57,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 06:06:57,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:06:57,008 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:06:57,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 06:06:57,008 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:06:57,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:06:57,009 INFO L85 PathProgramCache]: Analyzing trace with hash -678588941, now seen corresponding path program 1 times [2023-12-16 06:06:57,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:06:57,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443232991] [2023-12-16 06:06:57,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:06:57,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:06:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:06:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 06:06:57,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:06:57,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443232991] [2023-12-16 06:06:57,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443232991] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:06:57,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:06:57,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:06:57,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871826715] [2023-12-16 06:06:57,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:06:57,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:06:57,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:06:57,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:06:57,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:06:57,241 INFO L87 Difference]: Start difference. First operand 32453 states and 47428 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:07:00,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:00,888 INFO L93 Difference]: Finished difference Result 297943 states and 435405 transitions. [2023-12-16 06:07:00,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:07:00,891 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-16 06:07:00,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:02,324 INFO L225 Difference]: With dead ends: 297943 [2023-12-16 06:07:02,324 INFO L226 Difference]: Without dead ends: 265557 [2023-12-16 06:07:02,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:07:02,537 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 1661 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:02,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 2259 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 06:07:03,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265557 states. [2023-12-16 06:07:06,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265557 to 64837. [2023-12-16 06:07:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64837 states, 64836 states have (on average 1.456042939107903) internal successors, (94404), 64836 states have internal predecessors, (94404), 0 states have call successors, (0), 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 06:07:07,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64837 states to 64837 states and 94404 transitions. [2023-12-16 06:07:07,142 INFO L78 Accepts]: Start accepts. Automaton has 64837 states and 94404 transitions. Word has length 114 [2023-12-16 06:07:07,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:07,142 INFO L495 AbstractCegarLoop]: Abstraction has 64837 states and 94404 transitions. [2023-12-16 06:07:07,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 06:07:07,142 INFO L276 IsEmpty]: Start isEmpty. Operand 64837 states and 94404 transitions. [2023-12-16 06:07:07,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 06:07:07,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:07,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:07:07,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 06:07:07,148 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:07,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 76795123, now seen corresponding path program 1 times [2023-12-16 06:07:07,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:07,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728584420] [2023-12-16 06:07:07,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:07,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:07,776 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 06:07:07,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:07,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728584420] [2023-12-16 06:07:07,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728584420] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:07,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:07,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:07:07,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820578334] [2023-12-16 06:07:07,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:07,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:07:07,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:07,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:07:07,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:07:07,779 INFO L87 Difference]: Start difference. First operand 64837 states and 94404 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 06:07:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:14,513 INFO L93 Difference]: Finished difference Result 330327 states and 482381 transitions. [2023-12-16 06:07:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:07:14,514 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 114 [2023-12-16 06:07:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:15,148 INFO L225 Difference]: With dead ends: 330327 [2023-12-16 06:07:15,149 INFO L226 Difference]: Without dead ends: 297941 [2023-12-16 06:07:15,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:07:15,272 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 1685 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:15,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 2102 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:07:15,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297941 states. [2023-12-16 06:07:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297941 to 113477. [2023-12-16 06:07:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113477 states, 113476 states have (on average 1.4500687370016567) internal successors, (164548), 113476 states have internal predecessors, (164548), 0 states have call successors, (0), 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 06:07:21,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113477 states to 113477 states and 164548 transitions. [2023-12-16 06:07:21,770 INFO L78 Accepts]: Start accepts. Automaton has 113477 states and 164548 transitions. Word has length 114 [2023-12-16 06:07:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:21,770 INFO L495 AbstractCegarLoop]: Abstraction has 113477 states and 164548 transitions. [2023-12-16 06:07:21,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 10 states have internal predecessors, (109), 0 states have call successors, (0), 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 06:07:21,771 INFO L276 IsEmpty]: Start isEmpty. Operand 113477 states and 164548 transitions. [2023-12-16 06:07:21,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 06:07:21,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:21,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:07:21,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 06:07:21,795 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:21,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:21,801 INFO L85 PathProgramCache]: Analyzing trace with hash -333591565, now seen corresponding path program 1 times [2023-12-16 06:07:21,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:21,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120390597] [2023-12-16 06:07:21,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:21,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:22,150 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-16 06:07:22,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:22,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120390597] [2023-12-16 06:07:22,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120390597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:22,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:22,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:07:22,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225238029] [2023-12-16 06:07:22,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:22,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:07:22,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:22,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:07:22,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:07:22,152 INFO L87 Difference]: Start difference. First operand 113477 states and 164548 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 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 06:07:29,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:29,139 INFO L93 Difference]: Finished difference Result 362711 states and 529357 transitions. [2023-12-16 06:07:29,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:07:29,140 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 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 114 [2023-12-16 06:07:29,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:30,177 INFO L225 Difference]: With dead ends: 362711 [2023-12-16 06:07:30,178 INFO L226 Difference]: Without dead ends: 330325 [2023-12-16 06:07:30,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:07:30,259 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1721 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:30,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 2038 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:07:30,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330325 states. [2023-12-16 06:07:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330325 to 145861. [2023-12-16 06:07:36,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145861 states, 145860 states have (on average 1.4501851090086384) internal successors, (211524), 145860 states have internal predecessors, (211524), 0 states have call successors, (0), 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 06:07:36,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145861 states to 145861 states and 211524 transitions. [2023-12-16 06:07:36,279 INFO L78 Accepts]: Start accepts. Automaton has 145861 states and 211524 transitions. Word has length 114 [2023-12-16 06:07:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:36,279 INFO L495 AbstractCegarLoop]: Abstraction has 145861 states and 211524 transitions. [2023-12-16 06:07:36,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 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 06:07:36,280 INFO L276 IsEmpty]: Start isEmpty. Operand 145861 states and 211524 transitions. [2023-12-16 06:07:36,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 06:07:36,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:36,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:07:36,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 06:07:36,288 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:36,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:36,288 INFO L85 PathProgramCache]: Analyzing trace with hash -602174733, now seen corresponding path program 1 times [2023-12-16 06:07:36,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:36,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272507314] [2023-12-16 06:07:36,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:36,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 06:07:36,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:36,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272507314] [2023-12-16 06:07:36,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272507314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:36,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:36,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:07:36,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847424953] [2023-12-16 06:07:36,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:36,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:07:36,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:36,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:07:36,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:07:36,475 INFO L87 Difference]: Start difference. First operand 145861 states and 211524 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 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 06:07:45,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 06:07:45,260 INFO L93 Difference]: Finished difference Result 395095 states and 576333 transitions. [2023-12-16 06:07:45,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:07:45,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 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 114 [2023-12-16 06:07:45,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 06:07:46,131 INFO L225 Difference]: With dead ends: 395095 [2023-12-16 06:07:46,131 INFO L226 Difference]: Without dead ends: 362709 [2023-12-16 06:07:46,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:07:46,251 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 1875 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:46,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 1935 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 06:07:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362709 states. [2023-12-16 06:07:53,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362709 to 178245. [2023-12-16 06:07:53,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178245 states, 178244 states have (on average 1.4502591952604296) internal successors, (258500), 178244 states have internal predecessors, (258500), 0 states have call successors, (0), 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 06:07:54,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178245 states to 178245 states and 258500 transitions. [2023-12-16 06:07:54,111 INFO L78 Accepts]: Start accepts. Automaton has 178245 states and 258500 transitions. Word has length 114 [2023-12-16 06:07:54,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 06:07:54,111 INFO L495 AbstractCegarLoop]: Abstraction has 178245 states and 258500 transitions. [2023-12-16 06:07:54,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 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 06:07:54,112 INFO L276 IsEmpty]: Start isEmpty. Operand 178245 states and 258500 transitions. [2023-12-16 06:07:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 06:07:54,119 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 06:07:54,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 06:07:54,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 06:07:54,119 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 06:07:54,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 06:07:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1187886861, now seen corresponding path program 1 times [2023-12-16 06:07:54,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 06:07:54,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430060890] [2023-12-16 06:07:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 06:07:54,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 06:07:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 06:07:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 06:07:54,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 06:07:54,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430060890] [2023-12-16 06:07:54,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430060890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 06:07:54,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 06:07:54,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 06:07:54,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911190471] [2023-12-16 06:07:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 06:07:54,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 06:07:54,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 06:07:54,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 06:07:54,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-16 06:07:54,329 INFO L87 Difference]: Start difference. First operand 178245 states and 258500 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 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) Received shutdown request... [2023-12-16 06:07:58,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 06:07:58,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2023-12-16 06:07:58,990 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 1932 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 06:07:58,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 1942 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 06:07:58,991 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 06:07:58,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 06:07:58,992 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (178245states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (222689 states constructed, input type IntersectNwa). [2023-12-16 06:07:58,995 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 06:07:58,996 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] [2023-12-16 06:07:58,997 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 06:07:59,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 06:07:58 BoogieIcfgContainer [2023-12-16 06:07:59,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 06:07:59,000 INFO L158 Benchmark]: Toolchain (without parser) took 71413.86ms. Allocated memory was 395.3MB in the beginning and 8.0GB in the end (delta: 7.6GB). Free memory was 347.2MB in the beginning and 5.5GB in the end (delta: -5.2GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-16 06:07:59,004 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 06:07:59,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.81ms. Allocated memory is still 395.3MB. Free memory was 347.2MB in the beginning and 328.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-16 06:07:59,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.63ms. Allocated memory is still 395.3MB. Free memory was 328.3MB in the beginning and 324.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 06:07:59,004 INFO L158 Benchmark]: Boogie Preprocessor took 100.26ms. Allocated memory is still 395.3MB. Free memory was 324.7MB in the beginning and 321.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 06:07:59,004 INFO L158 Benchmark]: RCFGBuilder took 890.94ms. Allocated memory is still 395.3MB. Free memory was 320.5MB in the beginning and 339.9MB in the end (delta: -19.4MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. [2023-12-16 06:07:59,005 INFO L158 Benchmark]: TraceAbstraction took 69895.66ms. Allocated memory was 395.3MB in the beginning and 8.0GB in the end (delta: 7.6GB). Free memory was 339.4MB in the beginning and 5.5GB in the end (delta: -5.2GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2023-12-16 06:07:59,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 148.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 465.81ms. Allocated memory is still 395.3MB. Free memory was 347.2MB in the beginning and 328.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.63ms. Allocated memory is still 395.3MB. Free memory was 328.3MB in the beginning and 324.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 100.26ms. Allocated memory is still 395.3MB. Free memory was 324.7MB in the beginning and 321.0MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 890.94ms. Allocated memory is still 395.3MB. Free memory was 320.5MB in the beginning and 339.9MB in the end (delta: -19.4MB). Peak memory consumption was 26.7MB. Max. memory is 8.0GB. * TraceAbstraction took 69895.66ms. Allocated memory was 395.3MB in the beginning and 8.0GB in the end (delta: 7.6GB). Free memory was 339.4MB in the beginning and 5.5GB in the end (delta: -5.2GB). Peak memory consumption was 2.7GB. 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: 673]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 673). Cancelled while NwaCegarLoop was constructing difference of abstraction (178245states) and FLOYD_HOARE automaton (currently 10 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (222689 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 128 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.9s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 37.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11775 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11775 mSDsluCounter, 20131 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15957 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1955 IncrementalHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 4174 mSDtfsCounter, 1955 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178245occurred in iteration=18, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 27.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 754992 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 1695 NumberOfCodeBlocks, 1695 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1676 ConstructedInterpolants, 0 QuantifiedInterpolants, 11606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 100/100 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