/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:18:34,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:18:34,230 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 01:18:34,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:18:34,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:18:34,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:18:34,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:18:34,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:18:34,250 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:18:34,250 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:18:34,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:18:34,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:18:34,251 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:18:34,251 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:18:34,251 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:18:34,252 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:18:34,252 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:18:34,252 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:18:34,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:18:34,253 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:18:34,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:18:34,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:18:34,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:18:34,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:18:34,254 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:18:34,254 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:18:34,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:18:34,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:18:34,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:18:34,255 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:18:34,255 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:18:34,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:18:34,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:18:34,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:18:34,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:18:34,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:18:34,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:18:34,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:18:34,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:18:34,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:18:34,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:18:34,258 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:18:34,259 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:18:34,259 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:18:34,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:18:34,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:18:34,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:18:34,473 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:18:34,473 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:18:34,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34.c [2023-12-16 01:18:35,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:18:35,815 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:18:35,816 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label34.c [2023-12-16 01:18:35,836 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d75343ab/1ca5ae048e5f43da990b1f8f365374fa/FLAGf2abc66e3 [2023-12-16 01:18:35,850 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d75343ab/1ca5ae048e5f43da990b1f8f365374fa [2023-12-16 01:18:35,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:18:35,854 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:18:35,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:18:35,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:18:35,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:18:35,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:18:35" (1/1) ... [2023-12-16 01:18:35,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1915f535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:35, skipping insertion in model container [2023-12-16 01:18:35,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:18:35" (1/1) ... [2023-12-16 01:18:35,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:18:36,308 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label34.c[59879,59892] [2023-12-16 01:18:36,330 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:18:36,338 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:18:36,457 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label34.c[59879,59892] [2023-12-16 01:18:36,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:18:36,476 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:18:36,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36 WrapperNode [2023-12-16 01:18:36,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:18:36,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:18:36,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:18:36,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:18:36,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,504 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,574 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772 [2023-12-16 01:18:36,575 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:18:36,576 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:18:36,576 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:18:36,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:18:36,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,625 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 01:18:36,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,625 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:18:36,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:18:36,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:18:36,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:18:36,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (1/1) ... [2023-12-16 01:18:36,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:18:36,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:18:36,719 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 01:18:36,743 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 01:18:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:18:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:18:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:18:36,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:18:36,829 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:18:36,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:18:38,057 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:18:38,105 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:18:38,105 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 01:18:38,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:18:38 BoogieIcfgContainer [2023-12-16 01:18:38,105 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:18:38,107 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:18:38,107 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:18:38,109 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:18:38,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:18:35" (1/3) ... [2023-12-16 01:18:38,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2073c1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:18:38, skipping insertion in model container [2023-12-16 01:18:38,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:18:36" (2/3) ... [2023-12-16 01:18:38,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2073c1af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:18:38, skipping insertion in model container [2023-12-16 01:18:38,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:18:38" (3/3) ... [2023-12-16 01:18:38,111 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label34.c [2023-12-16 01:18:38,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:18:38,123 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 01:18:38,160 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:18:38,164 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;@7663996a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:18:38,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 01:18:38,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 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 01:18:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-16 01:18:38,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:38,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:38,180 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:38,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:38,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1178120330, now seen corresponding path program 1 times [2023-12-16 01:18:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:38,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011611609] [2023-12-16 01:18:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:38,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:38,642 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 01:18:38,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:38,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011611609] [2023-12-16 01:18:38,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011611609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:38,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:38,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:38,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384989329] [2023-12-16 01:18:38,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:38,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 01:18:38,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:38,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 01:18:38,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 01:18:38,673 INFO L87 Difference]: Start difference. First operand has 240 states, 238 states have (on average 1.9201680672268908) internal successors, (457), 239 states have internal predecessors, (457), 0 states have call successors, (0), 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 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 01:18:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:38,717 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-16 01:18:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 01:18:38,719 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2023-12-16 01:18:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:38,730 INFO L225 Difference]: With dead ends: 479 [2023-12-16 01:18:38,730 INFO L226 Difference]: Without dead ends: 238 [2023-12-16 01:18:38,733 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 01:18:38,735 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:38,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 392 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:18:38,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-16 01:18:38,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-16 01:18:38,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 237 states have (on average 1.6540084388185654) internal successors, (392), 237 states have internal predecessors, (392), 0 states have call successors, (0), 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 01:18:38,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-16 01:18:38,782 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 189 [2023-12-16 01:18:38,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:38,784 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-16 01:18:38,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 94.5) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 01:18:38,785 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-16 01:18:38,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-16 01:18:38,788 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:38,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:38,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:18:38,788 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:38,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:38,789 INFO L85 PathProgramCache]: Analyzing trace with hash -752658120, now seen corresponding path program 1 times [2023-12-16 01:18:38,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:38,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834088888] [2023-12-16 01:18:38,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:38,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:39,198 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 01:18:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:39,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834088888] [2023-12-16 01:18:39,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834088888] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:39,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:39,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:39,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649180381] [2023-12-16 01:18:39,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:39,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:39,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:39,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:39,201 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 01:18:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:39,950 INFO L93 Difference]: Finished difference Result 698 states and 1151 transitions. [2023-12-16 01:18:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 189 [2023-12-16 01:18:39,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:39,952 INFO L225 Difference]: With dead ends: 698 [2023-12-16 01:18:39,952 INFO L226 Difference]: Without dead ends: 461 [2023-12-16 01:18:39,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:39,954 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 66 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:39,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 148 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:18:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-12-16 01:18:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2023-12-16 01:18:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.539301310043668) internal successors, (705), 458 states have internal predecessors, (705), 0 states have call successors, (0), 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 01:18:39,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 705 transitions. [2023-12-16 01:18:39,977 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 705 transitions. Word has length 189 [2023-12-16 01:18:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:39,978 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 705 transitions. [2023-12-16 01:18:39,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 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 01:18:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 705 transitions. [2023-12-16 01:18:39,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-12-16 01:18:39,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:39,980 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:39,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:18:39,980 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:39,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:39,981 INFO L85 PathProgramCache]: Analyzing trace with hash 44504215, now seen corresponding path program 1 times [2023-12-16 01:18:39,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:39,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865690149] [2023-12-16 01:18:39,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:39,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:40,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:40,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865690149] [2023-12-16 01:18:40,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865690149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:40,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:40,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:40,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809711710] [2023-12-16 01:18:40,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:40,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:40,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:40,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:40,125 INFO L87 Difference]: Start difference. First operand 459 states and 705 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 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 01:18:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:40,803 INFO L93 Difference]: Finished difference Result 1343 states and 2078 transitions. [2023-12-16 01:18:40,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:40,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 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 197 [2023-12-16 01:18:40,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:40,806 INFO L225 Difference]: With dead ends: 1343 [2023-12-16 01:18:40,806 INFO L226 Difference]: Without dead ends: 885 [2023-12-16 01:18:40,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:40,808 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 247 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:40,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 90 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:18:40,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-12-16 01:18:40,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 869. [2023-12-16 01:18:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.512672811059908) internal successors, (1313), 868 states have internal predecessors, (1313), 0 states have call successors, (0), 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 01:18:40,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1313 transitions. [2023-12-16 01:18:40,826 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1313 transitions. Word has length 197 [2023-12-16 01:18:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:40,827 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1313 transitions. [2023-12-16 01:18:40,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 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 01:18:40,827 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1313 transitions. [2023-12-16 01:18:40,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-16 01:18:40,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:40,829 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:40,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:18:40,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:40,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash 925949310, now seen corresponding path program 1 times [2023-12-16 01:18:40,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:40,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582521638] [2023-12-16 01:18:40,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:40,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:41,028 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 01:18:41,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:41,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582521638] [2023-12-16 01:18:41,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582521638] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:41,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:41,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:18:41,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928302747] [2023-12-16 01:18:41,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:41,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:41,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:41,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:41,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:41,031 INFO L87 Difference]: Start difference. First operand 869 states and 1313 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 01:18:41,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:41,651 INFO L93 Difference]: Finished difference Result 2553 states and 3868 transitions. [2023-12-16 01:18:41,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:41,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 209 [2023-12-16 01:18:41,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:41,656 INFO L225 Difference]: With dead ends: 2553 [2023-12-16 01:18:41,656 INFO L226 Difference]: Without dead ends: 1685 [2023-12-16 01:18:41,657 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 01:18:41,658 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 232 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:41,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 414 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:18:41,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2023-12-16 01:18:41,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1683. [2023-12-16 01:18:41,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1682 states have (on average 1.3365041617122473) internal successors, (2248), 1682 states have internal predecessors, (2248), 0 states have call successors, (0), 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 01:18:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2248 transitions. [2023-12-16 01:18:41,682 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2248 transitions. Word has length 209 [2023-12-16 01:18:41,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:41,682 INFO L495 AbstractCegarLoop]: Abstraction has 1683 states and 2248 transitions. [2023-12-16 01:18:41,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 01:18:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2248 transitions. [2023-12-16 01:18:41,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 01:18:41,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:41,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:41,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:18:41,686 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:41,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1355238945, now seen corresponding path program 1 times [2023-12-16 01:18:41,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:41,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641825688] [2023-12-16 01:18:41,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:41,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:41,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641825688] [2023-12-16 01:18:41,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641825688] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:41,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:41,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:41,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448575080] [2023-12-16 01:18:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:41,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:41,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:41,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:41,872 INFO L87 Difference]: Start difference. First operand 1683 states and 2248 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 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 01:18:42,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:42,493 INFO L93 Difference]: Finished difference Result 5016 states and 6706 transitions. [2023-12-16 01:18:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:42,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 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 212 [2023-12-16 01:18:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:42,503 INFO L225 Difference]: With dead ends: 5016 [2023-12-16 01:18:42,503 INFO L226 Difference]: Without dead ends: 3334 [2023-12-16 01:18:42,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:42,507 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 259 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:42,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 121 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:18:42,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3334 states. [2023-12-16 01:18:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3334 to 3325. [2023-12-16 01:18:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3325 states, 3324 states have (on average 1.3231046931407942) internal successors, (4398), 3324 states have internal predecessors, (4398), 0 states have call successors, (0), 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 01:18:42,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3325 states to 3325 states and 4398 transitions. [2023-12-16 01:18:42,565 INFO L78 Accepts]: Start accepts. Automaton has 3325 states and 4398 transitions. Word has length 212 [2023-12-16 01:18:42,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:42,565 INFO L495 AbstractCegarLoop]: Abstraction has 3325 states and 4398 transitions. [2023-12-16 01:18:42,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 2 states have internal predecessors, (212), 0 states have call successors, (0), 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 01:18:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 3325 states and 4398 transitions. [2023-12-16 01:18:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-12-16 01:18:42,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:42,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:42,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:18:42,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:42,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:42,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1288735549, now seen corresponding path program 1 times [2023-12-16 01:18:42,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:42,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383419412] [2023-12-16 01:18:42,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:42,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:42,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:42,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383419412] [2023-12-16 01:18:42,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383419412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:42,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:42,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:42,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442786075] [2023-12-16 01:18:42,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:42,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:42,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:42,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:42,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:42,752 INFO L87 Difference]: Start difference. First operand 3325 states and 4398 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 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 01:18:43,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:43,350 INFO L93 Difference]: Finished difference Result 9927 states and 13144 transitions. [2023-12-16 01:18:43,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:43,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 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 215 [2023-12-16 01:18:43,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:43,369 INFO L225 Difference]: With dead ends: 9927 [2023-12-16 01:18:43,370 INFO L226 Difference]: Without dead ends: 6603 [2023-12-16 01:18:43,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:43,377 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 219 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:43,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 165 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:18:43,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6603 states. [2023-12-16 01:18:43,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6603 to 5767. [2023-12-16 01:18:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 5766 states have (on average 1.3371488033298646) internal successors, (7710), 5766 states have internal predecessors, (7710), 0 states have call successors, (0), 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 01:18:43,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 7710 transitions. [2023-12-16 01:18:43,505 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 7710 transitions. Word has length 215 [2023-12-16 01:18:43,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:43,506 INFO L495 AbstractCegarLoop]: Abstraction has 5767 states and 7710 transitions. [2023-12-16 01:18:43,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 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 01:18:43,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 7710 transitions. [2023-12-16 01:18:43,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-12-16 01:18:43,514 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:43,515 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:43,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:18:43,515 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:43,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:43,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1207004714, now seen corresponding path program 1 times [2023-12-16 01:18:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:43,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33141818] [2023-12-16 01:18:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:43,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:43,745 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 01:18:43,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:43,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33141818] [2023-12-16 01:18:43,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33141818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:43,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:43,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:18:43,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747957549] [2023-12-16 01:18:43,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:43,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:43,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:43,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:43,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:43,748 INFO L87 Difference]: Start difference. First operand 5767 states and 7710 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 01:18:44,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:44,438 INFO L93 Difference]: Finished difference Result 14590 states and 19419 transitions. [2023-12-16 01:18:44,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:44,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 224 [2023-12-16 01:18:44,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:44,462 INFO L225 Difference]: With dead ends: 14590 [2023-12-16 01:18:44,463 INFO L226 Difference]: Without dead ends: 8824 [2023-12-16 01:18:44,469 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 01:18:44,471 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 202 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:44,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 418 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:18:44,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8824 states. [2023-12-16 01:18:44,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8824 to 8820. [2023-12-16 01:18:44,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8820 states, 8819 states have (on average 1.2787164077559814) internal successors, (11277), 8819 states have internal predecessors, (11277), 0 states have call successors, (0), 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 01:18:44,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8820 states to 8820 states and 11277 transitions. [2023-12-16 01:18:44,608 INFO L78 Accepts]: Start accepts. Automaton has 8820 states and 11277 transitions. Word has length 224 [2023-12-16 01:18:44,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:44,608 INFO L495 AbstractCegarLoop]: Abstraction has 8820 states and 11277 transitions. [2023-12-16 01:18:44,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 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 01:18:44,609 INFO L276 IsEmpty]: Start isEmpty. Operand 8820 states and 11277 transitions. [2023-12-16 01:18:44,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-16 01:18:44,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:44,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:44,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 01:18:44,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:44,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:44,622 INFO L85 PathProgramCache]: Analyzing trace with hash -665975896, now seen corresponding path program 1 times [2023-12-16 01:18:44,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:44,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084642408] [2023-12-16 01:18:44,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:44,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:44,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084642408] [2023-12-16 01:18:44,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084642408] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:18:44,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702772122] [2023-12-16 01:18:44,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:44,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:18:44,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:18:44,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:18:44,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:18:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:45,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:18:45,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:18:45,301 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-16 01:18:45,302 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:18:45,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702772122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:45,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:18:45,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-16 01:18:45,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274377312] [2023-12-16 01:18:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:45,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:45,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:45,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:18:45,303 INFO L87 Difference]: Start difference. First operand 8820 states and 11277 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:18:46,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:46,020 INFO L93 Difference]: Finished difference Result 22146 states and 28842 transitions. [2023-12-16 01:18:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:46,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 226 [2023-12-16 01:18:46,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:46,060 INFO L225 Difference]: With dead ends: 22146 [2023-12-16 01:18:46,060 INFO L226 Difference]: Without dead ends: 13327 [2023-12-16 01:18:46,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:18:46,073 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 79 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:46,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 132 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:18:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13327 states. [2023-12-16 01:18:46,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13327 to 13315. [2023-12-16 01:18:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13315 states, 13314 states have (on average 1.2828601472134595) internal successors, (17080), 13314 states have internal predecessors, (17080), 0 states have call successors, (0), 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 01:18:46,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13315 states to 13315 states and 17080 transitions. [2023-12-16 01:18:46,324 INFO L78 Accepts]: Start accepts. Automaton has 13315 states and 17080 transitions. Word has length 226 [2023-12-16 01:18:46,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:46,324 INFO L495 AbstractCegarLoop]: Abstraction has 13315 states and 17080 transitions. [2023-12-16 01:18:46,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-16 01:18:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 13315 states and 17080 transitions. [2023-12-16 01:18:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-12-16 01:18:46,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:46,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:46,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-16 01:18:46,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:18:46,547 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:46,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:46,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1523662325, now seen corresponding path program 1 times [2023-12-16 01:18:46,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:46,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015874625] [2023-12-16 01:18:46,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:46,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:46,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:46,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015874625] [2023-12-16 01:18:46,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015874625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:46,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:46,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:46,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85610359] [2023-12-16 01:18:46,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:46,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:46,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:46,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:46,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:46,869 INFO L87 Difference]: Start difference. First operand 13315 states and 17080 transitions. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 2 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 01:18:47,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:47,599 INFO L93 Difference]: Finished difference Result 31752 states and 40753 transitions. [2023-12-16 01:18:47,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:47,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 2 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) Word has length 230 [2023-12-16 01:18:47,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:47,625 INFO L225 Difference]: With dead ends: 31752 [2023-12-16 01:18:47,626 INFO L226 Difference]: Without dead ends: 18438 [2023-12-16 01:18:47,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:47,640 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 197 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:47,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 173 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:18:47,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18438 states. [2023-12-16 01:18:47,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18438 to 18420. [2023-12-16 01:18:47,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18420 states, 18419 states have (on average 1.274770617297356) internal successors, (23480), 18419 states have internal predecessors, (23480), 0 states have call successors, (0), 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 01:18:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18420 states to 18420 states and 23480 transitions. [2023-12-16 01:18:47,875 INFO L78 Accepts]: Start accepts. Automaton has 18420 states and 23480 transitions. Word has length 230 [2023-12-16 01:18:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:47,875 INFO L495 AbstractCegarLoop]: Abstraction has 18420 states and 23480 transitions. [2023-12-16 01:18:47,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 2 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 01:18:47,876 INFO L276 IsEmpty]: Start isEmpty. Operand 18420 states and 23480 transitions. [2023-12-16 01:18:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-12-16 01:18:47,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:47,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:47,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:18:47,900 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:47,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:47,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2014180228, now seen corresponding path program 1 times [2023-12-16 01:18:47,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:47,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036743121] [2023-12-16 01:18:47,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:47,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036743121] [2023-12-16 01:18:48,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036743121] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:18:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191499132] [2023-12-16 01:18:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:48,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:18:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:18:48,257 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:18:48,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:18:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:48,382 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 01:18:48,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:18:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:18:48,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:18:48,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191499132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:48,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:18:48,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 01:18:48,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653219959] [2023-12-16 01:18:48,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:48,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:18:48,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:48,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:18:48,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:18:48,510 INFO L87 Difference]: Start difference. First operand 18420 states and 23480 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 01:18:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:49,621 INFO L93 Difference]: Finished difference Result 51668 states and 67366 transitions. [2023-12-16 01:18:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:18:49,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 237 [2023-12-16 01:18:49,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:49,671 INFO L225 Difference]: With dead ends: 51668 [2023-12-16 01:18:49,671 INFO L226 Difference]: Without dead ends: 33249 [2023-12-16 01:18:49,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:18:49,692 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 584 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:49,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 183 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:18:49,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33249 states. [2023-12-16 01:18:50,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33249 to 33239. [2023-12-16 01:18:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33239 states, 33238 states have (on average 1.2033816715807208) internal successors, (39998), 33238 states have internal predecessors, (39998), 0 states have call successors, (0), 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 01:18:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33239 states to 33239 states and 39998 transitions. [2023-12-16 01:18:50,296 INFO L78 Accepts]: Start accepts. Automaton has 33239 states and 39998 transitions. Word has length 237 [2023-12-16 01:18:50,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:50,297 INFO L495 AbstractCegarLoop]: Abstraction has 33239 states and 39998 transitions. [2023-12-16 01:18:50,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 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 01:18:50,297 INFO L276 IsEmpty]: Start isEmpty. Operand 33239 states and 39998 transitions. [2023-12-16 01:18:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-12-16 01:18:50,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:50,330 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:50,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 01:18:50,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 01:18:50,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:50,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:50,536 INFO L85 PathProgramCache]: Analyzing trace with hash -612997379, now seen corresponding path program 1 times [2023-12-16 01:18:50,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:50,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512645260] [2023-12-16 01:18:50,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:50,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:50,797 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-16 01:18:50,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:50,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512645260] [2023-12-16 01:18:50,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512645260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:50,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:50,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:18:50,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411900781] [2023-12-16 01:18:50,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:50,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:18:50,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:50,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:18:50,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:18:50,799 INFO L87 Difference]: Start difference. First operand 33239 states and 39998 transitions. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 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 01:18:51,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:51,654 INFO L93 Difference]: Finished difference Result 79004 states and 95627 transitions. [2023-12-16 01:18:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:18:51,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 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 245 [2023-12-16 01:18:51,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:51,707 INFO L225 Difference]: With dead ends: 79004 [2023-12-16 01:18:51,708 INFO L226 Difference]: Without dead ends: 45969 [2023-12-16 01:18:51,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:18:51,740 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 585 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:51,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 52 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:18:51,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45969 states. [2023-12-16 01:18:52,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45969 to 43330. [2023-12-16 01:18:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43330 states, 43329 states have (on average 1.1515151515151516) internal successors, (49894), 43329 states have internal predecessors, (49894), 0 states have call successors, (0), 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 01:18:52,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43330 states to 43330 states and 49894 transitions. [2023-12-16 01:18:52,412 INFO L78 Accepts]: Start accepts. Automaton has 43330 states and 49894 transitions. Word has length 245 [2023-12-16 01:18:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:52,413 INFO L495 AbstractCegarLoop]: Abstraction has 43330 states and 49894 transitions. [2023-12-16 01:18:52,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 3 states have internal predecessors, (240), 0 states have call successors, (0), 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 01:18:52,413 INFO L276 IsEmpty]: Start isEmpty. Operand 43330 states and 49894 transitions. [2023-12-16 01:18:52,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2023-12-16 01:18:52,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:52,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:52,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:18:52,434 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:52,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash -122919190, now seen corresponding path program 1 times [2023-12-16 01:18:52,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:52,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554945508] [2023-12-16 01:18:52,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:18:52,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:52,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554945508] [2023-12-16 01:18:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554945508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:52,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:52,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:18:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48268959] [2023-12-16 01:18:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:52,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:18:52,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:52,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:18:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:52,822 INFO L87 Difference]: Start difference. First operand 43330 states and 49894 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 01:18:53,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:53,622 INFO L93 Difference]: Finished difference Result 96840 states and 111914 transitions. [2023-12-16 01:18:53,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:18:53,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 260 [2023-12-16 01:18:53,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:53,682 INFO L225 Difference]: With dead ends: 96840 [2023-12-16 01:18:53,682 INFO L226 Difference]: Without dead ends: 53714 [2023-12-16 01:18:53,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:18:53,714 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 202 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:53,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 143 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:18:53,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53714 states. [2023-12-16 01:18:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53714 to 53499. [2023-12-16 01:18:54,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53499 states, 53498 states have (on average 1.1574451381360051) internal successors, (61921), 53498 states have internal predecessors, (61921), 0 states have call successors, (0), 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 01:18:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53499 states to 53499 states and 61921 transitions. [2023-12-16 01:18:54,428 INFO L78 Accepts]: Start accepts. Automaton has 53499 states and 61921 transitions. Word has length 260 [2023-12-16 01:18:54,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:54,428 INFO L495 AbstractCegarLoop]: Abstraction has 53499 states and 61921 transitions. [2023-12-16 01:18:54,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 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 01:18:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 53499 states and 61921 transitions. [2023-12-16 01:18:54,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-16 01:18:54,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:54,453 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:18:54,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:18:54,453 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:54,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:54,454 INFO L85 PathProgramCache]: Analyzing trace with hash 475101142, now seen corresponding path program 1 times [2023-12-16 01:18:54,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:54,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909105397] [2023-12-16 01:18:54,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:54,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:54,848 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:18:54,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:54,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909105397] [2023-12-16 01:18:54,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909105397] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:18:54,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530046726] [2023-12-16 01:18:54,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:54,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:18:54,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:18:54,850 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:18:54,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 01:18:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:55,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 01:18:55,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:18:55,150 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:18:55,151 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:18:55,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530046726] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:55,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:18:55,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 01:18:55,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110792092] [2023-12-16 01:18:55,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:55,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:18:55,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:55,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:18:55,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:18:55,155 INFO L87 Difference]: Start difference. First operand 53499 states and 61921 transitions. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 3 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 01:18:56,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:56,312 INFO L93 Difference]: Finished difference Result 153141 states and 177552 transitions. [2023-12-16 01:18:56,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:18:56,312 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 3 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) Word has length 265 [2023-12-16 01:18:56,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:56,440 INFO L225 Difference]: With dead ends: 153141 [2023-12-16 01:18:56,441 INFO L226 Difference]: Without dead ends: 100253 [2023-12-16 01:18:56,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:18:56,462 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 760 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:56,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 307 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:18:56,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100253 states. [2023-12-16 01:18:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100253 to 85415. [2023-12-16 01:18:57,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85415 states, 85414 states have (on average 1.1460065094715153) internal successors, (97885), 85414 states have internal predecessors, (97885), 0 states have call successors, (0), 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 01:18:57,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85415 states to 85415 states and 97885 transitions. [2023-12-16 01:18:57,731 INFO L78 Accepts]: Start accepts. Automaton has 85415 states and 97885 transitions. Word has length 265 [2023-12-16 01:18:57,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:18:57,731 INFO L495 AbstractCegarLoop]: Abstraction has 85415 states and 97885 transitions. [2023-12-16 01:18:57,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 3 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 01:18:57,732 INFO L276 IsEmpty]: Start isEmpty. Operand 85415 states and 97885 transitions. [2023-12-16 01:18:57,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-12-16 01:18:57,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:18:57,750 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:57,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 01:18:57,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:18:57,956 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:18:57,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:18:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash 487217244, now seen corresponding path program 1 times [2023-12-16 01:18:57,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:18:57,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199172063] [2023-12-16 01:18:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:18:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:18:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:18:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 01:18:58,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:18:58,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199172063] [2023-12-16 01:18:58,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199172063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:18:58,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:18:58,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:18:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584540959] [2023-12-16 01:18:58,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:18:58,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:18:58,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:18:58,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:18:58,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:18:58,260 INFO L87 Difference]: Start difference. First operand 85415 states and 97885 transitions. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 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 01:18:59,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:18:59,517 INFO L93 Difference]: Finished difference Result 230627 states and 264176 transitions. [2023-12-16 01:18:59,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:18:59,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 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) Word has length 275 [2023-12-16 01:18:59,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:18:59,862 INFO L225 Difference]: With dead ends: 230627 [2023-12-16 01:18:59,863 INFO L226 Difference]: Without dead ends: 145823 [2023-12-16 01:18:59,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:18:59,900 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 575 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:18:59,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 457 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:19:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145823 states. [2023-12-16 01:19:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145823 to 143378. [2023-12-16 01:19:01,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143378 states, 143377 states have (on average 1.1419823263145414) internal successors, (163734), 143377 states have internal predecessors, (163734), 0 states have call successors, (0), 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 01:19:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143378 states to 143378 states and 163734 transitions. [2023-12-16 01:19:01,906 INFO L78 Accepts]: Start accepts. Automaton has 143378 states and 163734 transitions. Word has length 275 [2023-12-16 01:19:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:01,906 INFO L495 AbstractCegarLoop]: Abstraction has 143378 states and 163734 transitions. [2023-12-16 01:19:01,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 3 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 01:19:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 143378 states and 163734 transitions. [2023-12-16 01:19:01,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-12-16 01:19:01,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:01,929 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:01,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:19:01,930 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:01,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:01,930 INFO L85 PathProgramCache]: Analyzing trace with hash -988901499, now seen corresponding path program 1 times [2023-12-16 01:19:01,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:01,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874647345] [2023-12-16 01:19:01,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 122 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:19:02,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:02,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874647345] [2023-12-16 01:19:02,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874647345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:02,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:19:02,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:19:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756443512] [2023-12-16 01:19:02,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:02,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:19:02,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:19:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:19:02,520 INFO L87 Difference]: Start difference. First operand 143378 states and 163734 transitions. Second operand has 4 states, 4 states have (on average 65.0) internal successors, (260), 3 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 01:19:04,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:04,054 INFO L93 Difference]: Finished difference Result 296320 states and 338264 transitions. [2023-12-16 01:19:04,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:19:04,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 3 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) Word has length 300 [2023-12-16 01:19:04,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:04,276 INFO L225 Difference]: With dead ends: 296320 [2023-12-16 01:19:04,276 INFO L226 Difference]: Without dead ends: 153553 [2023-12-16 01:19:04,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:19:04,345 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 500 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:04,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 155 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:19:04,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153553 states. [2023-12-16 01:19:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153553 to 152726. [2023-12-16 01:19:06,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152726 states, 152725 states have (on average 1.1388377803241119) internal successors, (173929), 152725 states have internal predecessors, (173929), 0 states have call successors, (0), 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 01:19:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152726 states to 152726 states and 173929 transitions. [2023-12-16 01:19:06,378 INFO L78 Accepts]: Start accepts. Automaton has 152726 states and 173929 transitions. Word has length 300 [2023-12-16 01:19:06,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:06,378 INFO L495 AbstractCegarLoop]: Abstraction has 152726 states and 173929 transitions. [2023-12-16 01:19:06,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.0) internal successors, (260), 3 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 01:19:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 152726 states and 173929 transitions. [2023-12-16 01:19:06,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-12-16 01:19:06,613 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:06,613 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:06,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:19:06,613 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:06,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:06,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1780412865, now seen corresponding path program 1 times [2023-12-16 01:19:06,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:06,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721397033] [2023-12-16 01:19:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:06,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:19:06,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:06,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721397033] [2023-12-16 01:19:06,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721397033] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:06,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:19:06,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:19:06,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34303990] [2023-12-16 01:19:06,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:06,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:19:06,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:06,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:19:06,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:06,890 INFO L87 Difference]: Start difference. First operand 152726 states and 173929 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 01:19:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:08,363 INFO L93 Difference]: Finished difference Result 310749 states and 355128 transitions. [2023-12-16 01:19:08,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:19:08,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 304 [2023-12-16 01:19:08,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:08,573 INFO L225 Difference]: With dead ends: 310749 [2023-12-16 01:19:08,574 INFO L226 Difference]: Without dead ends: 159448 [2023-12-16 01:19:08,646 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 01:19:08,647 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 173 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:08,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 372 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:19:08,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159448 states. [2023-12-16 01:19:10,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159448 to 155388. [2023-12-16 01:19:10,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155388 states, 155387 states have (on average 1.1273851737918874) internal successors, (175181), 155387 states have internal predecessors, (175181), 0 states have call successors, (0), 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 01:19:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155388 states to 155388 states and 175181 transitions. [2023-12-16 01:19:10,875 INFO L78 Accepts]: Start accepts. Automaton has 155388 states and 175181 transitions. Word has length 304 [2023-12-16 01:19:10,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:10,875 INFO L495 AbstractCegarLoop]: Abstraction has 155388 states and 175181 transitions. [2023-12-16 01:19:10,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 01:19:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 155388 states and 175181 transitions. [2023-12-16 01:19:10,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-12-16 01:19:10,893 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:10,893 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:10,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:19:10,893 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:10,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:10,894 INFO L85 PathProgramCache]: Analyzing trace with hash 556117517, now seen corresponding path program 1 times [2023-12-16 01:19:10,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:10,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133934107] [2023-12-16 01:19:10,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:10,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-12-16 01:19:11,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:11,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133934107] [2023-12-16 01:19:11,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133934107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:11,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:19:11,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:19:11,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698019642] [2023-12-16 01:19:11,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:11,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:19:11,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:11,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:19:11,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:11,329 INFO L87 Difference]: Start difference. First operand 155388 states and 175181 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 2 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 01:19:12,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:12,685 INFO L93 Difference]: Finished difference Result 324195 states and 364773 transitions. [2023-12-16 01:19:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:19:12,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 2 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) Word has length 327 [2023-12-16 01:19:12,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:12,909 INFO L225 Difference]: With dead ends: 324195 [2023-12-16 01:19:12,910 INFO L226 Difference]: Without dead ends: 170435 [2023-12-16 01:19:12,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:12,996 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 203 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:12,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 155 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:19:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170435 states. [2023-12-16 01:19:15,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170435 to 168809. [2023-12-16 01:19:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168809 states, 168808 states have (on average 1.1232939197194445) internal successors, (189621), 168808 states have internal predecessors, (189621), 0 states have call successors, (0), 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 01:19:15,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168809 states to 168809 states and 189621 transitions. [2023-12-16 01:19:15,353 INFO L78 Accepts]: Start accepts. Automaton has 168809 states and 189621 transitions. Word has length 327 [2023-12-16 01:19:15,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:15,353 INFO L495 AbstractCegarLoop]: Abstraction has 168809 states and 189621 transitions. [2023-12-16 01:19:15,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 2 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 01:19:15,353 INFO L276 IsEmpty]: Start isEmpty. Operand 168809 states and 189621 transitions. [2023-12-16 01:19:15,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2023-12-16 01:19:15,375 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:15,375 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:15,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:19:15,375 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:15,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:15,375 INFO L85 PathProgramCache]: Analyzing trace with hash 640259646, now seen corresponding path program 1 times [2023-12-16 01:19:15,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:15,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511873847] [2023-12-16 01:19:15,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:15,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-12-16 01:19:15,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:15,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511873847] [2023-12-16 01:19:15,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511873847] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:15,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:19:15,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:19:15,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842399222] [2023-12-16 01:19:15,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:15,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:19:15,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:15,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:19:15,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:15,820 INFO L87 Difference]: Start difference. First operand 168809 states and 189621 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 01:19:17,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:17,086 INFO L93 Difference]: Finished difference Result 327081 states and 367574 transitions. [2023-12-16 01:19:17,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:19:17,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 329 [2023-12-16 01:19:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:17,500 INFO L225 Difference]: With dead ends: 327081 [2023-12-16 01:19:17,501 INFO L226 Difference]: Without dead ends: 160716 [2023-12-16 01:19:17,578 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 01:19:17,578 INFO L413 NwaCegarLoop]: 331 mSDtfsCounter, 167 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:17,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 344 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:19:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160716 states. [2023-12-16 01:19:19,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160716 to 139757. [2023-12-16 01:19:19,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139757 states, 139756 states have (on average 1.1236512206989324) internal successors, (157037), 139756 states have internal predecessors, (157037), 0 states have call successors, (0), 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 01:19:19,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139757 states to 139757 states and 157037 transitions. [2023-12-16 01:19:19,582 INFO L78 Accepts]: Start accepts. Automaton has 139757 states and 157037 transitions. Word has length 329 [2023-12-16 01:19:19,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:19,582 INFO L495 AbstractCegarLoop]: Abstraction has 139757 states and 157037 transitions. [2023-12-16 01:19:19,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 01:19:19,582 INFO L276 IsEmpty]: Start isEmpty. Operand 139757 states and 157037 transitions. [2023-12-16 01:19:19,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 01:19:19,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:19,602 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:19,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:19:19,603 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:19,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash -161823286, now seen corresponding path program 1 times [2023-12-16 01:19:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:19,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760069423] [2023-12-16 01:19:19,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:19,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:19,726 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-12-16 01:19:19,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:19,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760069423] [2023-12-16 01:19:19,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760069423] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:19,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:19:19,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 01:19:19,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599040275] [2023-12-16 01:19:19,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:19,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:19:19,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:19,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:19:19,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:19,730 INFO L87 Difference]: Start difference. First operand 139757 states and 157037 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 01:19:21,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:21,007 INFO L93 Difference]: Finished difference Result 250832 states and 280508 transitions. [2023-12-16 01:19:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:19:21,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 336 [2023-12-16 01:19:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:21,383 INFO L225 Difference]: With dead ends: 250832 [2023-12-16 01:19:21,383 INFO L226 Difference]: Without dead ends: 110876 [2023-12-16 01:19:21,433 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 01:19:21,433 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 223 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:21,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 307 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 01:19:21,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110876 states. [2023-12-16 01:19:22,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110876 to 90560. [2023-12-16 01:19:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90560 states, 90559 states have (on average 1.071831623582416) internal successors, (97064), 90559 states have internal predecessors, (97064), 0 states have call successors, (0), 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 01:19:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90560 states to 90560 states and 97064 transitions. [2023-12-16 01:19:22,689 INFO L78 Accepts]: Start accepts. Automaton has 90560 states and 97064 transitions. Word has length 336 [2023-12-16 01:19:22,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:22,689 INFO L495 AbstractCegarLoop]: Abstraction has 90560 states and 97064 transitions. [2023-12-16 01:19:22,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 01:19:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 90560 states and 97064 transitions. [2023-12-16 01:19:22,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 01:19:22,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:22,705 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:22,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:19:22,705 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:22,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:22,705 INFO L85 PathProgramCache]: Analyzing trace with hash 131083553, now seen corresponding path program 1 times [2023-12-16 01:19:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:22,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518120596] [2023-12-16 01:19:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:22,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 159 proven. 11 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:19:23,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518120596] [2023-12-16 01:19:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518120596] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:19:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123304380] [2023-12-16 01:19:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:23,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:19:23,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:19:23,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:19:23,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 01:19:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:23,380 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 01:19:23,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:19:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-16 01:19:23,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:19:23,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123304380] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:23,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:19:23,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-16 01:19:23,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015172320] [2023-12-16 01:19:23,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:23,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:19:23,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:19:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:19:23,482 INFO L87 Difference]: Start difference. First operand 90560 states and 97064 transitions. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 01:19:24,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:24,599 INFO L93 Difference]: Finished difference Result 189689 states and 203345 transitions. [2023-12-16 01:19:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:19:24,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 338 [2023-12-16 01:19:24,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:24,714 INFO L225 Difference]: With dead ends: 189689 [2023-12-16 01:19:24,714 INFO L226 Difference]: Without dead ends: 101576 [2023-12-16 01:19:24,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:19:24,755 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 455 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:24,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 94 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:19:24,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101576 states. [2023-12-16 01:19:25,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101576 to 96847. [2023-12-16 01:19:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96847 states, 96846 states have (on average 1.0596307539805465) internal successors, (102621), 96846 states have internal predecessors, (102621), 0 states have call successors, (0), 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 01:19:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96847 states to 96847 states and 102621 transitions. [2023-12-16 01:19:25,999 INFO L78 Accepts]: Start accepts. Automaton has 96847 states and 102621 transitions. Word has length 338 [2023-12-16 01:19:26,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:26,000 INFO L495 AbstractCegarLoop]: Abstraction has 96847 states and 102621 transitions. [2023-12-16 01:19:26,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 01:19:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 96847 states and 102621 transitions. [2023-12-16 01:19:26,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2023-12-16 01:19:26,016 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:26,017 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:26,023 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-16 01:19:26,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:19:26,223 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:26,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -67281699, now seen corresponding path program 1 times [2023-12-16 01:19:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946364582] [2023-12-16 01:19:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:26,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:19:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-16 01:19:26,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:19:26,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946364582] [2023-12-16 01:19:26,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946364582] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:19:26,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:19:26,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 01:19:26,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318034708] [2023-12-16 01:19:26,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:19:26,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:19:26,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:19:26,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:19:26,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:26,631 INFO L87 Difference]: Start difference. First operand 96847 states and 102621 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 2 states have internal predecessors, (315), 0 states have call successors, (0), 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 01:19:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:19:27,499 INFO L93 Difference]: Finished difference Result 274463 states and 290639 transitions. [2023-12-16 01:19:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:19:27,500 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 2 states have internal predecessors, (315), 0 states have call successors, (0), 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 360 [2023-12-16 01:19:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:19:27,702 INFO L225 Difference]: With dead ends: 274463 [2023-12-16 01:19:27,702 INFO L226 Difference]: Without dead ends: 179244 [2023-12-16 01:19:27,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 01:19:27,745 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 185 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:19:27,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 483 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:19:27,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179244 states. [2023-12-16 01:19:29,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179244 to 177604. [2023-12-16 01:19:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177604 states, 177603 states have (on average 1.0582197372792126) internal successors, (187943), 177603 states have internal predecessors, (187943), 0 states have call successors, (0), 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 01:19:30,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177604 states to 177604 states and 187943 transitions. [2023-12-16 01:19:30,169 INFO L78 Accepts]: Start accepts. Automaton has 177604 states and 187943 transitions. Word has length 360 [2023-12-16 01:19:30,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:19:30,169 INFO L495 AbstractCegarLoop]: Abstraction has 177604 states and 187943 transitions. [2023-12-16 01:19:30,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 2 states have internal predecessors, (315), 0 states have call successors, (0), 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 01:19:30,170 INFO L276 IsEmpty]: Start isEmpty. Operand 177604 states and 187943 transitions. [2023-12-16 01:19:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-12-16 01:19:30,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:19:30,188 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:19:30,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:19:30,188 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:19:30,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:19:30,189 INFO L85 PathProgramCache]: Analyzing trace with hash 831816958, now seen corresponding path program 1 times [2023-12-16 01:19:30,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:19:30,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189376471] [2023-12-16 01:19:30,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:19:30,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:19:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2023-12-16 01:19:30,836 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,836 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,837 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,837 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,837 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,837 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,837 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,837 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,838 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,839 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,840 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,841 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,842 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,843 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,844 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,845 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,846 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,846 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,846 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,846 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,846 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,846 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 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,847 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,848 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,849 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,850 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,851 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,852 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,853 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,854 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,855 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,856 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,857 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,858 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,859 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,860 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,864 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,864 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,864 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,864 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,864 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,864 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,865 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,866 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,867 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,868 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,869 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,870 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,871 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,871 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,871 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,871 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,871 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,871 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,872 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,873 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,874 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,875 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,876 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,877 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,878 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,879 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,880 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,881 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,882 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,883 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,884 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,885 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,886 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,887 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,888 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,889 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,890 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,890 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,890 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2023-12-16 01:19:30,892 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 01:19:30,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:19:30,893 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 388 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 386 interpolants. [2023-12-16 01:19:30,896 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:19:30,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:19:30,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:19:30 BoogieIcfgContainer [2023-12-16 01:19:30,899 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:19:30,899 INFO L158 Benchmark]: Toolchain (without parser) took 55045.71ms. Allocated memory was 248.5MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 191.9MB in the beginning and 6.3GB in the end (delta: -6.1GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2023-12-16 01:19:30,899 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:19:30,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.60ms. Allocated memory is still 248.5MB. Free memory was 191.6MB in the beginning and 182.0MB in the end (delta: 9.7MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. [2023-12-16 01:19:30,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.52ms. Allocated memory is still 248.5MB. Free memory was 182.0MB in the beginning and 166.8MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 01:19:30,900 INFO L158 Benchmark]: Boogie Preprocessor took 119.07ms. Allocated memory is still 248.5MB. Free memory was 166.8MB in the beginning and 154.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 01:19:30,900 INFO L158 Benchmark]: RCFGBuilder took 1409.60ms. Allocated memory is still 248.5MB. Free memory was 154.2MB in the beginning and 105.2MB in the end (delta: 49.0MB). Peak memory consumption was 61.6MB. Max. memory is 8.0GB. [2023-12-16 01:19:30,900 INFO L158 Benchmark]: TraceAbstraction took 52792.11ms. Allocated memory was 248.5MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 104.6MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2023-12-16 01:19:30,901 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 206.6MB. Free memory is still 156.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 619.60ms. Allocated memory is still 248.5MB. Free memory was 191.6MB in the beginning and 182.0MB in the end (delta: 9.7MB). Peak memory consumption was 40.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 97.52ms. Allocated memory is still 248.5MB. Free memory was 182.0MB in the beginning and 166.8MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 119.07ms. Allocated memory is still 248.5MB. Free memory was 166.8MB in the beginning and 154.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1409.60ms. Allocated memory is still 248.5MB. Free memory was 154.2MB in the beginning and 105.2MB in the end (delta: 49.0MB). Peak memory consumption was 61.6MB. Max. memory is 8.0GB. * TraceAbstraction took 52792.11ms. Allocated memory was 248.5MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 104.6MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 1.5GB. 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: 1615]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 1615). Cancelled while NwaCegarLoop was analyzing trace of length 388 with TraceHistMax 5,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while NestedInterpolantsBuilder was constructing predicates for 386 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.8s, OverallIterations: 22, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 22.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6113 SdHoareTripleChecker+Valid, 12.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6113 mSDsluCounter, 5105 SdHoareTripleChecker+Invalid, 9.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1117 mSDsCounter, 2339 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12762 IncrementalHoareTripleChecker+Invalid, 15101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2339 mSolverCounterUnsat, 3988 mSDtfsCounter, 12762 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1116 GetRequests, 1082 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=177604occurred in iteration=21, InterpolantAutomatonStates: 68, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 19.7s AutomataMinimizationTime, 21 MinimizatonAttempts, 75203 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 6533 NumberOfCodeBlocks, 6533 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 6508 ConstructedInterpolants, 0 QuantifiedInterpolants, 12796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1929 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 2677/2706 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