/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 18:16:09,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 18:16:09,439 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 18:16:09,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 18:16:09,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 18:16:09,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 18:16:09,470 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 18:16:09,470 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 18:16:09,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 18:16:09,473 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 18:16:09,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 18:16:09,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 18:16:09,474 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 18:16:09,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 18:16:09,475 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 18:16:09,475 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 18:16:09,475 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 18:16:09,476 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 18:16:09,476 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 18:16:09,476 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 18:16:09,476 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 18:16:09,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 18:16:09,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 18:16:09,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 18:16:09,477 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 18:16:09,477 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 18:16:09,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 18:16:09,477 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 18:16:09,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 18:16:09,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:16:09,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 18:16:09,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 18:16:09,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 18:16:09,480 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 18:16:09,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 18:16:09,480 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 18:16:09,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 18:16:09,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 18:16:09,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 18:16:09,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 18:16:09,689 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 18:16:09,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label36.c [2023-12-15 18:16:10,704 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 18:16:10,974 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 18:16:10,975 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label36.c [2023-12-15 18:16:10,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464f02dd4/29061ba1d0e74dea905078aa7ccea4db/FLAGb459f50d4 [2023-12-15 18:16:11,006 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/464f02dd4/29061ba1d0e74dea905078aa7ccea4db [2023-12-15 18:16:11,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 18:16:11,009 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 18:16:11,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 18:16:11,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 18:16:11,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 18:16:11,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8572ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11, skipping insertion in model container [2023-12-15 18:16:11,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,071 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 18:16:11,473 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_label36.c[58393,58406] [2023-12-15 18:16:11,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:16:11,520 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 18:16:11,667 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_label36.c[58393,58406] [2023-12-15 18:16:11,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 18:16:11,687 INFO L206 MainTranslator]: Completed translation [2023-12-15 18:16:11,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11 WrapperNode [2023-12-15 18:16:11,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 18:16:11,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 18:16:11,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 18:16:11,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 18:16:11,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,782 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772 [2023-12-15 18:16:11,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 18:16:11,784 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 18:16:11,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 18:16:11,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 18:16:11,791 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,799 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,837 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 18:16:11,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 18:16:11,905 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 18:16:11,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 18:16:11,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 18:16:11,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (1/1) ... [2023-12-15 18:16:11,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 18:16:11,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:11,929 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 18:16:11,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 18:16:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 18:16:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 18:16:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 18:16:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 18:16:12,008 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 18:16:12,009 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 18:16:13,211 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 18:16:13,264 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 18:16:13,265 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 18:16:13,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:16:13 BoogieIcfgContainer [2023-12-15 18:16:13,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 18:16:13,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 18:16:13,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 18:16:13,269 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 18:16:13,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 06:16:11" (1/3) ... [2023-12-15 18:16:13,270 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284debcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:16:13, skipping insertion in model container [2023-12-15 18:16:13,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 06:16:11" (2/3) ... [2023-12-15 18:16:13,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284debcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 06:16:13, skipping insertion in model container [2023-12-15 18:16:13,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 06:16:13" (3/3) ... [2023-12-15 18:16:13,272 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label36.c [2023-12-15 18:16:13,285 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 18:16:13,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 18:16:13,326 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 18:16:13,332 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;@31ca3ccc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 18:16:13,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 18:16:13,338 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) [2023-12-15 18:16:13,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-15 18:16:13,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:13,350 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] [2023-12-15 18:16:13,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:13,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:13,354 INFO L85 PathProgramCache]: Analyzing trace with hash 512171391, now seen corresponding path program 1 times [2023-12-15 18:16:13,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:13,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824423171] [2023-12-15 18:16:13,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:13,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:13,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:13,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824423171] [2023-12-15 18:16:13,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824423171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:13,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:13,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:13,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348561084] [2023-12-15 18:16:13,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:13,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 18:16:13,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:13,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 18:16:13,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:16:13,864 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 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:13,908 INFO L93 Difference]: Finished difference Result 479 states and 913 transitions. [2023-12-15 18:16:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 18:16:13,912 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2023-12-15 18:16:13,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:13,923 INFO L225 Difference]: With dead ends: 479 [2023-12-15 18:16:13,923 INFO L226 Difference]: Without dead ends: 238 [2023-12-15 18:16:13,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 18:16:13,930 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 [2023-12-15 18:16:13,931 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] [2023-12-15 18:16:13,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-15 18:16:13,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-15 18:16:13,976 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) [2023-12-15 18:16:13,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 392 transitions. [2023-12-15 18:16:13,981 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 392 transitions. Word has length 178 [2023-12-15 18:16:13,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:13,982 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 392 transitions. [2023-12-15 18:16:13,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:13,982 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 392 transitions. [2023-12-15 18:16:13,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-12-15 18:16:13,984 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:13,984 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] [2023-12-15 18:16:13,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 18:16:13,984 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:13,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:13,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1099174822, now seen corresponding path program 1 times [2023-12-15 18:16:13,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:13,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575569385] [2023-12-15 18:16:13,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:13,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:14,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:14,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575569385] [2023-12-15 18:16:14,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575569385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:14,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:14,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:14,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091933390] [2023-12-15 18:16:14,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:14,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:14,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:14,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:14,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:14,370 INFO L87 Difference]: Start difference. First operand 238 states and 392 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:15,071 INFO L93 Difference]: Finished difference Result 698 states and 1151 transitions. [2023-12-15 18:16:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:15,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2023-12-15 18:16:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:15,074 INFO L225 Difference]: With dead ends: 698 [2023-12-15 18:16:15,075 INFO L226 Difference]: Without dead ends: 461 [2023-12-15 18:16:15,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:15,076 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 77 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 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 [2023-12-15 18:16:15,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 148 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 18:16:15,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2023-12-15 18:16:15,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 459. [2023-12-15 18:16:15,098 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) [2023-12-15 18:16:15,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 705 transitions. [2023-12-15 18:16:15,100 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 705 transitions. Word has length 178 [2023-12-15 18:16:15,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:15,100 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 705 transitions. [2023-12-15 18:16:15,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:15,101 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 705 transitions. [2023-12-15 18:16:15,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-15 18:16:15,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:15,103 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] [2023-12-15 18:16:15,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 18:16:15,104 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:15,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:15,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1425034407, now seen corresponding path program 1 times [2023-12-15 18:16:15,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:15,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782008367] [2023-12-15 18:16:15,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:15,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:15,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:15,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782008367] [2023-12-15 18:16:15,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782008367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:15,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:15,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:15,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960821934] [2023-12-15 18:16:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:15,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:15,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:15,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:15,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:15,293 INFO L87 Difference]: Start difference. First operand 459 states and 705 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:15,999 INFO L93 Difference]: Finished difference Result 1343 states and 2078 transitions. [2023-12-15 18:16:15,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 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 186 [2023-12-15 18:16:15,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:16,002 INFO L225 Difference]: With dead ends: 1343 [2023-12-15 18:16:16,002 INFO L226 Difference]: Without dead ends: 885 [2023-12-15 18:16:16,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:16,004 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 88 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 [2023-12-15 18:16:16,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 88 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 18:16:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-12-15 18:16:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 869. [2023-12-15 18:16:16,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 869 states, 868 states have (on average 1.5138248847926268) internal successors, (1314), 868 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:16,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1314 transitions. [2023-12-15 18:16:16,021 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1314 transitions. Word has length 186 [2023-12-15 18:16:16,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:16,021 INFO L495 AbstractCegarLoop]: Abstraction has 869 states and 1314 transitions. [2023-12-15 18:16:16,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 2 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:16,022 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1314 transitions. [2023-12-15 18:16:16,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-15 18:16:16,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:16,025 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-12-15 18:16:16,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 18:16:16,026 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:16,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1359264694, now seen corresponding path program 1 times [2023-12-15 18:16:16,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:16,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711790235] [2023-12-15 18:16:16,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:16,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:16,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:16,491 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:16:16,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:16,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711790235] [2023-12-15 18:16:16,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711790235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:16,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:16,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:16:16,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957275610] [2023-12-15 18:16:16,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:16,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:16:16,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:16,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:16:16,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:16:16,493 INFO L87 Difference]: Start difference. First operand 869 states and 1314 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:17,206 INFO L93 Difference]: Finished difference Result 1883 states and 2885 transitions. [2023-12-15 18:16:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:16:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 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 193 [2023-12-15 18:16:17,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:17,210 INFO L225 Difference]: With dead ends: 1883 [2023-12-15 18:16:17,210 INFO L226 Difference]: Without dead ends: 841 [2023-12-15 18:16:17,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:16:17,218 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 299 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:17,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 44 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 18:16:17,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2023-12-15 18:16:17,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2023-12-15 18:16:17,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 840 states have (on average 1.3654761904761905) internal successors, (1147), 840 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1147 transitions. [2023-12-15 18:16:17,235 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1147 transitions. Word has length 193 [2023-12-15 18:16:17,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:17,235 INFO L495 AbstractCegarLoop]: Abstraction has 841 states and 1147 transitions. [2023-12-15 18:16:17,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 3 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1147 transitions. [2023-12-15 18:16:17,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-15 18:16:17,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:17,239 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] [2023-12-15 18:16:17,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 18:16:17,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:17,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:17,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1971158141, now seen corresponding path program 1 times [2023-12-15 18:16:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:17,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125465452] [2023-12-15 18:16:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:17,497 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:17,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125465452] [2023-12-15 18:16:17,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125465452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:17,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:17,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:17,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144374231] [2023-12-15 18:16:17,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:17,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:17,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:17,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:17,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:17,501 INFO L87 Difference]: Start difference. First operand 841 states and 1147 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:17,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:17,981 INFO L93 Difference]: Finished difference Result 2506 states and 3423 transitions. [2023-12-15 18:16:17,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:17,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 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 201 [2023-12-15 18:16:17,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:17,985 INFO L225 Difference]: With dead ends: 2506 [2023-12-15 18:16:17,986 INFO L226 Difference]: Without dead ends: 1666 [2023-12-15 18:16:17,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:17,987 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 230 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 588 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:17,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 47 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 588 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:17,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2023-12-15 18:16:18,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1657. [2023-12-15 18:16:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1656 states have (on average 1.3568840579710144) internal successors, (2247), 1656 states have internal predecessors, (2247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2247 transitions. [2023-12-15 18:16:18,008 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2247 transitions. Word has length 201 [2023-12-15 18:16:18,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:18,008 INFO L495 AbstractCegarLoop]: Abstraction has 1657 states and 2247 transitions. [2023-12-15 18:16:18,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 2 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2247 transitions. [2023-12-15 18:16:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-12-15 18:16:18,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:18,011 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] [2023-12-15 18:16:18,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 18:16:18,012 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:18,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:18,012 INFO L85 PathProgramCache]: Analyzing trace with hash 383531451, now seen corresponding path program 1 times [2023-12-15 18:16:18,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:18,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638035155] [2023-12-15 18:16:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:18,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:18,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:18,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638035155] [2023-12-15 18:16:18,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638035155] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:18,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:18,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:18,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009489814] [2023-12-15 18:16:18,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:18,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:18,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:18,162 INFO L87 Difference]: Start difference. First operand 1657 states and 2247 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 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) [2023-12-15 18:16:18,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:18,684 INFO L93 Difference]: Finished difference Result 4951 states and 6719 transitions. [2023-12-15 18:16:18,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:18,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 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 204 [2023-12-15 18:16:18,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:18,693 INFO L225 Difference]: With dead ends: 4951 [2023-12-15 18:16:18,693 INFO L226 Difference]: Without dead ends: 3295 [2023-12-15 18:16:18,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:18,695 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 205 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:18,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 118 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3295 states. [2023-12-15 18:16:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3295 to 3287. [2023-12-15 18:16:18,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3287 states, 3286 states have (on average 1.3429701765063908) internal successors, (4413), 3286 states have internal predecessors, (4413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:18,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3287 states to 3287 states and 4413 transitions. [2023-12-15 18:16:18,746 INFO L78 Accepts]: Start accepts. Automaton has 3287 states and 4413 transitions. Word has length 204 [2023-12-15 18:16:18,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:18,746 INFO L495 AbstractCegarLoop]: Abstraction has 3287 states and 4413 transitions. [2023-12-15 18:16:18,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 2 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) [2023-12-15 18:16:18,746 INFO L276 IsEmpty]: Start isEmpty. Operand 3287 states and 4413 transitions. [2023-12-15 18:16:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-12-15 18:16:18,751 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:18,751 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:18,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 18:16:18,752 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:18,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:18,752 INFO L85 PathProgramCache]: Analyzing trace with hash -53653504, now seen corresponding path program 1 times [2023-12-15 18:16:18,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:18,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671964810] [2023-12-15 18:16:18,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:18,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:18,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671964810] [2023-12-15 18:16:18,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671964810] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:18,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:18,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:18,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404168727] [2023-12-15 18:16:18,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:18,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:18,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:18,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:18,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:18,916 INFO L87 Difference]: Start difference. First operand 3287 states and 4413 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:19,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:19,462 INFO L93 Difference]: Finished difference Result 8212 states and 11000 transitions. [2023-12-15 18:16:19,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:19,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2023-12-15 18:16:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:19,476 INFO L225 Difference]: With dead ends: 8212 [2023-12-15 18:16:19,476 INFO L226 Difference]: Without dead ends: 4926 [2023-12-15 18:16:19,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:19,481 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 203 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:19,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 55 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4926 states. [2023-12-15 18:16:19,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4926 to 4923. [2023-12-15 18:16:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4923 states, 4922 states have (on average 1.334213734254368) internal successors, (6567), 4922 states have internal predecessors, (6567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:19,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4923 states to 4923 states and 6567 transitions. [2023-12-15 18:16:19,555 INFO L78 Accepts]: Start accepts. Automaton has 4923 states and 6567 transitions. Word has length 206 [2023-12-15 18:16:19,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:19,555 INFO L495 AbstractCegarLoop]: Abstraction has 4923 states and 6567 transitions. [2023-12-15 18:16:19,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:19,556 INFO L276 IsEmpty]: Start isEmpty. Operand 4923 states and 6567 transitions. [2023-12-15 18:16:19,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-12-15 18:16:19,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:19,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:19,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 18:16:19,563 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:19,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1000138171, now seen corresponding path program 1 times [2023-12-15 18:16:19,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:19,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645829746] [2023-12-15 18:16:19,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:19,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:19,853 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:19,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:19,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645829746] [2023-12-15 18:16:19,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645829746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:19,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:19,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:19,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485432278] [2023-12-15 18:16:19,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:19,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:19,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:19,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:19,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:19,855 INFO L87 Difference]: Start difference. First operand 4923 states and 6567 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:20,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:20,389 INFO L93 Difference]: Finished difference Result 14746 states and 19678 transitions. [2023-12-15 18:16:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:20,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 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 208 [2023-12-15 18:16:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:20,415 INFO L225 Difference]: With dead ends: 14746 [2023-12-15 18:16:20,415 INFO L226 Difference]: Without dead ends: 9824 [2023-12-15 18:16:20,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:20,424 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 200 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:20,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 106 Invalid, 613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:20,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9824 states. [2023-12-15 18:16:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9824 to 9811. [2023-12-15 18:16:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9811 states, 9810 states have (on average 1.3283384301732926) internal successors, (13031), 9810 states have internal predecessors, (13031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:20,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9811 states to 9811 states and 13031 transitions. [2023-12-15 18:16:20,571 INFO L78 Accepts]: Start accepts. Automaton has 9811 states and 13031 transitions. Word has length 208 [2023-12-15 18:16:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:20,572 INFO L495 AbstractCegarLoop]: Abstraction has 9811 states and 13031 transitions. [2023-12-15 18:16:20,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 2 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9811 states and 13031 transitions. [2023-12-15 18:16:20,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-15 18:16:20,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:20,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:20,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 18:16:20,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:20,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:20,586 INFO L85 PathProgramCache]: Analyzing trace with hash 382129169, now seen corresponding path program 1 times [2023-12-15 18:16:20,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:20,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997486913] [2023-12-15 18:16:20,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:20,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:20,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:21,017 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:21,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:21,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997486913] [2023-12-15 18:16:21,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997486913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:21,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:21,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:16:21,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469126894] [2023-12-15 18:16:21,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:21,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 18:16:21,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:21,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 18:16:21,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:16:21,019 INFO L87 Difference]: Start difference. First operand 9811 states and 13031 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:21,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:21,953 INFO L93 Difference]: Finished difference Result 26482 states and 35143 transitions. [2023-12-15 18:16:21,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 18:16:21,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 [2023-12-15 18:16:21,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:21,990 INFO L225 Difference]: With dead ends: 26482 [2023-12-15 18:16:21,991 INFO L226 Difference]: Without dead ends: 16324 [2023-12-15 18:16:22,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-15 18:16:22,004 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 198 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:22,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 111 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1072 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 18:16:22,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16324 states. [2023-12-15 18:16:22,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16324 to 16323. [2023-12-15 18:16:22,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16323 states, 16322 states have (on average 1.308724421026835) internal successors, (21361), 16322 states have internal predecessors, (21361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:22,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16323 states to 16323 states and 21361 transitions. [2023-12-15 18:16:22,370 INFO L78 Accepts]: Start accepts. Automaton has 16323 states and 21361 transitions. Word has length 209 [2023-12-15 18:16:22,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:22,371 INFO L495 AbstractCegarLoop]: Abstraction has 16323 states and 21361 transitions. [2023-12-15 18:16:22,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:22,372 INFO L276 IsEmpty]: Start isEmpty. Operand 16323 states and 21361 transitions. [2023-12-15 18:16:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-12-15 18:16:22,385 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:22,385 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:22,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 18:16:22,386 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:22,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:22,386 INFO L85 PathProgramCache]: Analyzing trace with hash 910860687, now seen corresponding path program 1 times [2023-12-15 18:16:22,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:22,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630418597] [2023-12-15 18:16:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:22,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:22,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:22,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630418597] [2023-12-15 18:16:22,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630418597] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:22,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27796391] [2023-12-15 18:16:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:22,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:22,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:22,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:16:22,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 18:16:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:22,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 18:16:22,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:23,083 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-15 18:16:23,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:23,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27796391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:23,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:23,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-12-15 18:16:23,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599529669] [2023-12-15 18:16:23,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:23,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:23,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:23,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:23,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:23,085 INFO L87 Difference]: Start difference. First operand 16323 states and 21361 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:23,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:23,771 INFO L93 Difference]: Finished difference Result 45071 states and 59111 transitions. [2023-12-15 18:16:23,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:23,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 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 213 [2023-12-15 18:16:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:23,818 INFO L225 Difference]: With dead ends: 45071 [2023-12-15 18:16:23,818 INFO L226 Difference]: Without dead ends: 28749 [2023-12-15 18:16:23,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:23,834 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 70 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:23,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 71 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:23,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28749 states. [2023-12-15 18:16:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28749 to 28747. [2023-12-15 18:16:24,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28747 states, 28746 states have (on average 1.2863702776038406) internal successors, (36978), 28746 states have internal predecessors, (36978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:24,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28747 states to 28747 states and 36978 transitions. [2023-12-15 18:16:24,370 INFO L78 Accepts]: Start accepts. Automaton has 28747 states and 36978 transitions. Word has length 213 [2023-12-15 18:16:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:24,371 INFO L495 AbstractCegarLoop]: Abstraction has 28747 states and 36978 transitions. [2023-12-15 18:16:24,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 28747 states and 36978 transitions. [2023-12-15 18:16:24,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-15 18:16:24,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:24,393 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:24,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 18:16:24,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 18:16:24,600 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:24,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:24,601 INFO L85 PathProgramCache]: Analyzing trace with hash 893183010, now seen corresponding path program 1 times [2023-12-15 18:16:24,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:24,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795875356] [2023-12-15 18:16:24,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:24,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:24,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:24,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795875356] [2023-12-15 18:16:24,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795875356] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:24,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446328894] [2023-12-15 18:16:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:24,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:24,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:24,938 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:16:24,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 18:16:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:25,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 18:16:25,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:25,267 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-15 18:16:25,267 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:25,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446328894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:25,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:25,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 18:16:25,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607931524] [2023-12-15 18:16:25,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:25,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:25,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:25,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:25,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:25,269 INFO L87 Difference]: Start difference. First operand 28747 states and 36978 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:26,007 INFO L93 Difference]: Finished difference Result 56081 states and 72202 transitions. [2023-12-15 18:16:26,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 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 216 [2023-12-15 18:16:26,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:26,052 INFO L225 Difference]: With dead ends: 56081 [2023-12-15 18:16:26,053 INFO L226 Difference]: Without dead ends: 27538 [2023-12-15 18:16:26,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:26,080 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 45 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:26,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 316 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 18:16:26,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27538 states. [2023-12-15 18:16:26,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27538 to 27529. [2023-12-15 18:16:26,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27529 states, 27528 states have (on average 1.2775356001162452) internal successors, (35168), 27528 states have internal predecessors, (35168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:26,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27529 states to 27529 states and 35168 transitions. [2023-12-15 18:16:26,480 INFO L78 Accepts]: Start accepts. Automaton has 27529 states and 35168 transitions. Word has length 216 [2023-12-15 18:16:26,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:26,481 INFO L495 AbstractCegarLoop]: Abstraction has 27529 states and 35168 transitions. [2023-12-15 18:16:26,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:26,481 INFO L276 IsEmpty]: Start isEmpty. Operand 27529 states and 35168 transitions. [2023-12-15 18:16:26,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-15 18:16:26,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:26,505 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:26,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 18:16:26,710 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,SelfDestructingSolverStorable10 [2023-12-15 18:16:26,711 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:26,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:26,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2069134082, now seen corresponding path program 1 times [2023-12-15 18:16:26,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:26,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117627882] [2023-12-15 18:16:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:26,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:27,107 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:16:27,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:27,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117627882] [2023-12-15 18:16:27,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117627882] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:27,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472917366] [2023-12-15 18:16:27,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:27,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:27,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:27,109 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:16:27,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 18:16:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:27,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 18:16:27,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-15 18:16:27,382 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:27,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472917366] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:27,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:27,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 18:16:27,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263822689] [2023-12-15 18:16:27,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:27,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:27,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:27,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:27,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:27,384 INFO L87 Difference]: Start difference. First operand 27529 states and 35168 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 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) [2023-12-15 18:16:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:28,113 INFO L93 Difference]: Finished difference Result 67641 states and 86328 transitions. [2023-12-15 18:16:28,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:28,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 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 222 [2023-12-15 18:16:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:28,167 INFO L225 Difference]: With dead ends: 67641 [2023-12-15 18:16:28,168 INFO L226 Difference]: Without dead ends: 40316 [2023-12-15 18:16:28,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:28,173 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 40 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:28,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 340 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40316 states. [2023-12-15 18:16:28,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40316 to 32190. [2023-12-15 18:16:28,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32190 states, 32189 states have (on average 1.2113454906955792) internal successors, (38992), 32189 states have internal predecessors, (38992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32190 states to 32190 states and 38992 transitions. [2023-12-15 18:16:28,655 INFO L78 Accepts]: Start accepts. Automaton has 32190 states and 38992 transitions. Word has length 222 [2023-12-15 18:16:28,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:28,655 INFO L495 AbstractCegarLoop]: Abstraction has 32190 states and 38992 transitions. [2023-12-15 18:16:28,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 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) [2023-12-15 18:16:28,656 INFO L276 IsEmpty]: Start isEmpty. Operand 32190 states and 38992 transitions. [2023-12-15 18:16:28,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-15 18:16:28,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:28,686 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2023-12-15 18:16:28,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 18:16:28,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:28,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:28,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:28,893 INFO L85 PathProgramCache]: Analyzing trace with hash 2026909118, now seen corresponding path program 1 times [2023-12-15 18:16:28,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:28,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310589084] [2023-12-15 18:16:28,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:28,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:16:29,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:29,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310589084] [2023-12-15 18:16:29,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310589084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:29,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:29,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:16:29,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11918904] [2023-12-15 18:16:29,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:29,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:29,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:29,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:29,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:29,117 INFO L87 Difference]: Start difference. First operand 32190 states and 38992 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:29,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:29,823 INFO L93 Difference]: Finished difference Result 77573 states and 94964 transitions. [2023-12-15 18:16:29,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:29,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 232 [2023-12-15 18:16:29,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:29,874 INFO L225 Difference]: With dead ends: 77573 [2023-12-15 18:16:29,875 INFO L226 Difference]: Without dead ends: 45791 [2023-12-15 18:16:29,900 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 [2023-12-15 18:16:29,900 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 210 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:29,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 124 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:29,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45791 states. [2023-12-15 18:16:30,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45791 to 45791. [2023-12-15 18:16:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45791 states, 45790 states have (on average 1.136754749945403) internal successors, (52052), 45790 states have internal predecessors, (52052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:30,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45791 states to 45791 states and 52052 transitions. [2023-12-15 18:16:30,463 INFO L78 Accepts]: Start accepts. Automaton has 45791 states and 52052 transitions. Word has length 232 [2023-12-15 18:16:30,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:30,463 INFO L495 AbstractCegarLoop]: Abstraction has 45791 states and 52052 transitions. [2023-12-15 18:16:30,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:30,463 INFO L276 IsEmpty]: Start isEmpty. Operand 45791 states and 52052 transitions. [2023-12-15 18:16:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-12-15 18:16:30,486 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:30,486 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:16:30,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 18:16:30,486 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:30,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:30,487 INFO L85 PathProgramCache]: Analyzing trace with hash -934429327, now seen corresponding path program 1 times [2023-12-15 18:16:30,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:30,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81548376] [2023-12-15 18:16:30,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:30,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 18:16:30,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:30,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81548376] [2023-12-15 18:16:30,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81548376] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:30,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:30,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 18:16:30,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179140780] [2023-12-15 18:16:30,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:30,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:30,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:30,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:30,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:30,686 INFO L87 Difference]: Start difference. First operand 45791 states and 52052 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:31,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:31,583 INFO L93 Difference]: Finished difference Result 108659 states and 123833 transitions. [2023-12-15 18:16:31,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:31,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 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 274 [2023-12-15 18:16:31,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:31,671 INFO L225 Difference]: With dead ends: 108659 [2023-12-15 18:16:31,671 INFO L226 Difference]: Without dead ends: 63276 [2023-12-15 18:16:31,707 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 [2023-12-15 18:16:31,708 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 56 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:31,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 308 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 18:16:31,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63276 states. [2023-12-15 18:16:32,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63276 to 63267. [2023-12-15 18:16:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63267 states, 63266 states have (on average 1.1274618278380173) internal successors, (71330), 63266 states have internal predecessors, (71330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63267 states to 63267 states and 71330 transitions. [2023-12-15 18:16:32,659 INFO L78 Accepts]: Start accepts. Automaton has 63267 states and 71330 transitions. Word has length 274 [2023-12-15 18:16:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:32,659 INFO L495 AbstractCegarLoop]: Abstraction has 63267 states and 71330 transitions. [2023-12-15 18:16:32,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 3 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 63267 states and 71330 transitions. [2023-12-15 18:16:32,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2023-12-15 18:16:32,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:32,694 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, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:16:32,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 18:16:32,695 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:32,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:32,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1187228125, now seen corresponding path program 1 times [2023-12-15 18:16:32,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:32,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438383180] [2023-12-15 18:16:32,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:32,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 68 proven. 6 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-12-15 18:16:33,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:33,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438383180] [2023-12-15 18:16:33,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438383180] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:33,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982903909] [2023-12-15 18:16:33,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:33,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:33,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:33,112 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) [2023-12-15 18:16:33,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 18:16:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:33,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 18:16:33,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-15 18:16:33,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:33,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982903909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:33,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:33,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 18:16:33,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914559127] [2023-12-15 18:16:33,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:33,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:33,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:33,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:33,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:33,458 INFO L87 Difference]: Start difference. First operand 63267 states and 71330 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:34,156 INFO L93 Difference]: Finished difference Result 125523 states and 141610 transitions. [2023-12-15 18:16:34,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:34,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 286 [2023-12-15 18:16:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:34,228 INFO L225 Difference]: With dead ends: 125523 [2023-12-15 18:16:34,228 INFO L226 Difference]: Without dead ends: 62664 [2023-12-15 18:16:34,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:34,267 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 84 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:34,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 274 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 18:16:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62664 states. [2023-12-15 18:16:35,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62664 to 62252. [2023-12-15 18:16:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62252 states, 62251 states have (on average 1.1212831922378756) internal successors, (69801), 62251 states have internal predecessors, (69801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62252 states to 62252 states and 69801 transitions. [2023-12-15 18:16:35,183 INFO L78 Accepts]: Start accepts. Automaton has 62252 states and 69801 transitions. Word has length 286 [2023-12-15 18:16:35,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:35,183 INFO L495 AbstractCegarLoop]: Abstraction has 62252 states and 69801 transitions. [2023-12-15 18:16:35,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 62252 states and 69801 transitions. [2023-12-15 18:16:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-12-15 18:16:35,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:35,224 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:35,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 18:16:35,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-15 18:16:35,429 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:35,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:35,430 INFO L85 PathProgramCache]: Analyzing trace with hash 299852992, now seen corresponding path program 1 times [2023-12-15 18:16:35,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:35,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934154233] [2023-12-15 18:16:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 102 proven. 6 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-12-15 18:16:35,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:35,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934154233] [2023-12-15 18:16:35,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934154233] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:35,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011580565] [2023-12-15 18:16:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:35,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:35,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:16:35,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 18:16:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:36,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 18:16:36,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-15 18:16:36,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:36,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011580565] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:36,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:36,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 18:16:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288166462] [2023-12-15 18:16:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:36,080 INFO L87 Difference]: Start difference. First operand 62252 states and 69801 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:36,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:36,880 INFO L93 Difference]: Finished difference Result 111267 states and 124569 transitions. [2023-12-15 18:16:36,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:36,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328 [2023-12-15 18:16:36,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:36,941 INFO L225 Difference]: With dead ends: 111267 [2023-12-15 18:16:36,942 INFO L226 Difference]: Without dead ends: 49423 [2023-12-15 18:16:36,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:36,976 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 200 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:36,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 309 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 18:16:37,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49423 states. [2023-12-15 18:16:37,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49423 to 48608. [2023-12-15 18:16:37,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48608 states, 48607 states have (on average 1.0965910259839118) internal successors, (53302), 48607 states have internal predecessors, (53302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:37,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48608 states to 48608 states and 53302 transitions. [2023-12-15 18:16:37,678 INFO L78 Accepts]: Start accepts. Automaton has 48608 states and 53302 transitions. Word has length 328 [2023-12-15 18:16:37,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:37,679 INFO L495 AbstractCegarLoop]: Abstraction has 48608 states and 53302 transitions. [2023-12-15 18:16:37,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:37,679 INFO L276 IsEmpty]: Start isEmpty. Operand 48608 states and 53302 transitions. [2023-12-15 18:16:37,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2023-12-15 18:16:37,718 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:37,718 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:16:37,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 18:16:37,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-15 18:16:37,920 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:37,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:37,920 INFO L85 PathProgramCache]: Analyzing trace with hash -325765968, now seen corresponding path program 1 times [2023-12-15 18:16:37,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:37,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538128189] [2023-12-15 18:16:37,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:37,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-12-15 18:16:38,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:38,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538128189] [2023-12-15 18:16:38,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538128189] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:38,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111767350] [2023-12-15 18:16:38,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:38,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:38,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:38,399 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:16:38,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 18:16:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:38,554 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 18:16:38,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-15 18:16:38,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:38,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111767350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:38,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:38,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 18:16:38,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436642909] [2023-12-15 18:16:38,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:38,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:38,720 INFO L87 Difference]: Start difference. First operand 48608 states and 53302 transitions. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:39,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:39,323 INFO L93 Difference]: Finished difference Result 92739 states and 101681 transitions. [2023-12-15 18:16:39,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:39,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 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 346 [2023-12-15 18:16:39,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:39,373 INFO L225 Difference]: With dead ends: 92739 [2023-12-15 18:16:39,374 INFO L226 Difference]: Without dead ends: 44742 [2023-12-15 18:16:39,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:39,399 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 111 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:39,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 287 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 18:16:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44742 states. [2023-12-15 18:16:39,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44742 to 39459. [2023-12-15 18:16:39,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39459 states, 39458 states have (on average 1.0767398246236504) internal successors, (42486), 39458 states have internal predecessors, (42486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39459 states to 39459 states and 42486 transitions. [2023-12-15 18:16:39,919 INFO L78 Accepts]: Start accepts. Automaton has 39459 states and 42486 transitions. Word has length 346 [2023-12-15 18:16:39,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:39,919 INFO L495 AbstractCegarLoop]: Abstraction has 39459 states and 42486 transitions. [2023-12-15 18:16:39,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 39459 states and 42486 transitions. [2023-12-15 18:16:39,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2023-12-15 18:16:39,948 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:39,948 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:39,953 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 18:16:40,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-15 18:16:40,149 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:40,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:40,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1942716751, now seen corresponding path program 1 times [2023-12-15 18:16:40,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:40,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707261386] [2023-12-15 18:16:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:40,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:40,501 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-12-15 18:16:40,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:40,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707261386] [2023-12-15 18:16:40,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707261386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:40,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 18:16:40,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 18:16:40,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927846445] [2023-12-15 18:16:40,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:40,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:40,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:40,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:40,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:40,504 INFO L87 Difference]: Start difference. First operand 39459 states and 42486 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 2 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) [2023-12-15 18:16:40,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:40,896 INFO L93 Difference]: Finished difference Result 113901 states and 122629 transitions. [2023-12-15 18:16:40,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:40,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 2 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 396 [2023-12-15 18:16:40,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:40,973 INFO L225 Difference]: With dead ends: 113901 [2023-12-15 18:16:40,973 INFO L226 Difference]: Without dead ends: 75459 [2023-12-15 18:16:41,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 18:16:41,006 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 [2023-12-15 18:16:41,006 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] [2023-12-15 18:16:41,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75459 states. [2023-12-15 18:16:41,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75459 to 68145. [2023-12-15 18:16:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68145 states, 68144 states have (on average 1.0788770838224935) internal successors, (73519), 68144 states have internal predecessors, (73519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:42,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68145 states to 68145 states and 73519 transitions. [2023-12-15 18:16:42,002 INFO L78 Accepts]: Start accepts. Automaton has 68145 states and 73519 transitions. Word has length 396 [2023-12-15 18:16:42,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:42,002 INFO L495 AbstractCegarLoop]: Abstraction has 68145 states and 73519 transitions. [2023-12-15 18:16:42,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 2 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) [2023-12-15 18:16:42,002 INFO L276 IsEmpty]: Start isEmpty. Operand 68145 states and 73519 transitions. [2023-12-15 18:16:42,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2023-12-15 18:16:42,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 18:16:42,027 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-15 18:16:42,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 18:16:42,027 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 18:16:42,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 18:16:42,028 INFO L85 PathProgramCache]: Analyzing trace with hash -602761134, now seen corresponding path program 1 times [2023-12-15 18:16:42,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 18:16:42,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368828295] [2023-12-15 18:16:42,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:42,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 18:16:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-12-15 18:16:42,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 18:16:42,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368828295] [2023-12-15 18:16:42,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368828295] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 18:16:42,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822810237] [2023-12-15 18:16:42,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 18:16:42,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:42,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 18:16:42,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 18:16:42,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 18:16:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 18:16:42,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 672 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 18:16:42,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 18:16:42,816 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 221 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2023-12-15 18:16:42,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 18:16:42,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822810237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 18:16:42,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 18:16:42,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-15 18:16:42,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168465660] [2023-12-15 18:16:42,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 18:16:42,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 18:16:42,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 18:16:42,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 18:16:42,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:42,818 INFO L87 Difference]: Start difference. First operand 68145 states and 73519 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:43,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 18:16:43,607 INFO L93 Difference]: Finished difference Result 149313 states and 161081 transitions. [2023-12-15 18:16:43,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 18:16:43,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 400 [2023-12-15 18:16:43,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 18:16:43,608 INFO L225 Difference]: With dead ends: 149313 [2023-12-15 18:16:43,608 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 18:16:43,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 18:16:43,646 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 51 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 18:16:43,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 316 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 18:16:43,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 18:16:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 18:16:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 18:16:43,647 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 400 [2023-12-15 18:16:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 18:16:43,647 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 18:16:43,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 18:16:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 18:16:43,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 18:16:43,649 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 18:16:43,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-15 18:16:43,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 18:16:43,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L632(lines 632 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L566(lines 566 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L1623-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L1557-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L1491-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,086 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1293(lines 1293 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1360(lines 1360 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1294(lines 1294 1313) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1294-2(lines 1294 1313) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1162(lines 1162 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1096(lines 1096 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1031(lines 1031 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L965(lines 965 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L899(lines 899 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1626-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1560-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1494-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1629-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,087 INFO L899 garLoopResultBuilder]: For program point L1563-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1497-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L771(lines 771 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 521) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 521) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1433(lines 1433 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1632-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1500-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1236(lines 1236 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,088 INFO L899 garLoopResultBuilder]: For program point L1369(lines 1369 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1105(lines 1105 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L643(lines 643 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1370(lines 1370 1389) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1370-2(lines 1370 1389) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1172(lines 1172 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1635-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1503-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1041(lines 1041 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L711(lines 711 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L976(lines 976 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,089 INFO L899 garLoopResultBuilder]: For program point L1638-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1572-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1506-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1442(lines 1442 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1641-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1575-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1509-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1114(lines 1114 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1048(lines 1048 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 405) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L388-2(lines 388 405) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 18:16:53,090 INFO L899 garLoopResultBuilder]: For program point L1247(lines 1247 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1049(lines 1049 1069) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1049-2(lines 1049 1069) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L917(lines 917 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L719(lines 719 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L653(lines 653 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1644-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1578-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1512-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L191(lines 191 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L720(lines 720 741) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L720-2(lines 720 741) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1315(lines 1315 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L1183(lines 1183 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L985(lines 985 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,091 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,092 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,092 INFO L899 garLoopResultBuilder]: For program point L854(lines 854 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,092 INFO L899 garLoopResultBuilder]: For program point L1647-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,092 INFO L899 garLoopResultBuilder]: For program point L1581-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,092 INFO L899 garLoopResultBuilder]: For program point L1515-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,094 INFO L899 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2023-12-15 18:16:53,094 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L593(lines 593 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1650-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1584-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1518-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1452(lines 1452 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1122(lines 1122 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1582) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 81) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 66 81) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1653-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1587-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1521-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,095 INFO L899 garLoopResultBuilder]: For program point L1323(lines 1323 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L993(lines 993 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L927(lines 927 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L663(lines 663 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L1192(lines 1192 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 945) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L928-2(lines 928 945) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L1391(lines 1391 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L1259(lines 1259 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 221) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,096 INFO L899 garLoopResultBuilder]: For program point L202-2(lines 202 221) no Hoare annotation was computed. [2023-12-15 18:16:53,097 INFO L899 garLoopResultBuilder]: For program point L863(lines 863 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,097 INFO L899 garLoopResultBuilder]: For program point L1656-1(lines 1656 1658) no Hoare annotation was computed. [2023-12-15 18:16:53,097 INFO L899 garLoopResultBuilder]: For program point L1590-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,097 INFO L899 garLoopResultBuilder]: For program point L1524-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,097 INFO L899 garLoopResultBuilder]: For program point L1392(lines 1392 1410) no Hoare annotation was computed. [2023-12-15 18:16:53,097 INFO L899 garLoopResultBuilder]: For program point L1392-2(lines 1392 1410) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1260(lines 1260 1282) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1260-2(lines 1260 1282) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1130(lines 1130 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1593-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1527-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1462(lines 1462 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1331(lines 1331 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1662(lines 1662 1679) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1596-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L1530-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,098 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1200(lines 1200 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L145(lines 145 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1004(lines 1004 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1599-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1533-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1137(lines 1137 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1071(lines 1071 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L1336(lines 1336 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L478(lines 478 488) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L478-2(lines 478 488) no Hoare annotation was computed. [2023-12-15 18:16:53,099 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,103 INFO L895 garLoopResultBuilder]: At program point L1668-2(lines 1668 1678) the Hoare annotation is: (let ((.cse6 (= ~a26~0 0)) (.cse12 (= ~a3~0 1)) (.cse1 (<= ~a3~0 0)) (.cse11 (= ~a6~0 1)) (.cse10 (= ~a26~0 1)) (.cse8 (= ~a12~0 1)) (.cse2 (= ~a11~0 1)) (.cse9 (<= ~a27~0 0)) (.cse0 (= ~a5~0 1)) (.cse13 (<= 2 ~a3~0)) (.cse7 (<= ~a11~0 0)) (.cse3 (= ~a27~0 1)) (.cse4 (= ~a18~0 1)) (.cse5 (<= ~a6~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse7 .cse3 .cse4 .cse5) (and .cse0 .cse8 .cse1 .cse7 .cse4 .cse9 .cse5) (and .cse10 .cse0 .cse8 .cse7 .cse4 .cse9 .cse5) (and .cse0 .cse11 .cse7 .cse3 .cse4) (and .cse10 .cse0 .cse12 .cse7 .cse4 .cse9 .cse5) (and .cse10 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse10 .cse0 .cse2 .cse11 .cse4 .cse9) (and .cse0 .cse13 .cse2 .cse11 .cse3 .cse4) (and .cse0 .cse2 .cse12 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse8 .cse2 .cse12 .cse11 .cse4 .cse9) (and .cse0 .cse1 .cse7 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse2 .cse3 .cse4 .cse5) (and .cse10 .cse0 .cse8 .cse7 .cse3 .cse4 .cse5) (and .cse6 .cse0 .cse13 .cse2 .cse4 .cse9 .cse5) (and .cse6 .cse0 .cse12 .cse7 .cse4 .cse9 .cse5) (and .cse10 .cse0 .cse12 .cse7 .cse3 .cse4 .cse5) (and .cse10 .cse0 .cse2 .cse12 .cse4 .cse9 .cse5) (and (<= ~a7~0 0) .cse0 .cse8 .cse1 .cse11 .cse7 .cse4 .cse9) (and .cse10 .cse0 .cse1 .cse2 .cse4 .cse9 .cse5) (and .cse6 .cse0 .cse13 .cse11 .cse7 .cse4 .cse9) (and .cse10 .cse0 .cse2 .cse11 .cse3 .cse4) (and .cse0 .cse8 .cse12 .cse11 .cse7 .cse4 .cse9) (and .cse0 .cse1 .cse2 .cse11 .cse3 .cse4) (and .cse10 .cse0 .cse11 .cse7 .cse4 .cse9) (and .cse10 .cse0 .cse8 .cse2 .cse4 .cse9 .cse5) (and (= ~a15~0 1) .cse0 .cse13 .cse7 .cse3 .cse4 .cse5))) [2023-12-15 18:16:53,103 INFO L899 garLoopResultBuilder]: For program point L1602-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1536-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1470(lines 1470 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1142(lines 1142 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1076(lines 1076 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L878(lines 878 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1605-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1539-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L879(lines 879 897) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L879-2(lines 879 897) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L549(lines 549 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L1210(lines 1210 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,104 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1673(line 1673) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1013(lines 1013 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1608-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1542-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1476(lines 1476 1478) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1476-2(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L156(lines 156 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1412(lines 1412 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1346(lines 1346 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1611-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1545-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1479-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1413(lines 1413 1431) no Hoare annotation was computed. [2023-12-15 18:16:53,105 INFO L899 garLoopResultBuilder]: For program point L1413-2(lines 1413 1431) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1084(lines 1084 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L490(lines 490 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1614-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1548-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1482-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1284(lines 1284 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1152(lines 1152 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L294(lines 294 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L1021(lines 1021 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,106 INFO L899 garLoopResultBuilder]: For program point L823(lines 823 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1220(lines 1220 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1617-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1551-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1485-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1221(lines 1221 1234) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1221-2(lines 1221 1234) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1354(lines 1354 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L165(lines 165 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L694(lines 694 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 1475) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 709) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L695-2(lines 695 709) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1620-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1554-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,107 INFO L899 garLoopResultBuilder]: For program point L1488-1(lines 64 1660) no Hoare annotation was computed. [2023-12-15 18:16:53,112 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 18:16:53,113 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 18:16:53,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 06:16:53 BoogieIcfgContainer [2023-12-15 18:16:53,141 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 18:16:53,142 INFO L158 Benchmark]: Toolchain (without parser) took 42132.60ms. Allocated memory was 360.7MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 300.1MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 4.5GB. Max. memory is 8.0GB. [2023-12-15 18:16:53,142 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 225.4MB. Free memory is still 174.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 18:16:53,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.13ms. Allocated memory is still 360.7MB. Free memory was 299.8MB in the beginning and 290.8MB in the end (delta: 9.1MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. [2023-12-15 18:16:53,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.69ms. Allocated memory is still 360.7MB. Free memory was 290.8MB in the beginning and 275.6MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-15 18:16:53,142 INFO L158 Benchmark]: Boogie Preprocessor took 121.19ms. Allocated memory is still 360.7MB. Free memory was 275.6MB in the beginning and 263.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-15 18:16:53,143 INFO L158 Benchmark]: RCFGBuilder took 1359.97ms. Allocated memory is still 360.7MB. Free memory was 263.0MB in the beginning and 128.9MB in the end (delta: 134.1MB). Peak memory consumption was 133.6MB. Max. memory is 8.0GB. [2023-12-15 18:16:53,143 INFO L158 Benchmark]: TraceAbstraction took 39874.38ms. Allocated memory was 360.7MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 128.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 4.3GB. Max. memory is 8.0GB. [2023-12-15 18:16:53,144 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 225.4MB. Free memory is still 174.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 677.13ms. Allocated memory is still 360.7MB. Free memory was 299.8MB in the beginning and 290.8MB in the end (delta: 9.1MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 93.69ms. Allocated memory is still 360.7MB. Free memory was 290.8MB in the beginning and 275.6MB in the end (delta: 15.2MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Preprocessor took 121.19ms. Allocated memory is still 360.7MB. Free memory was 275.6MB in the beginning and 263.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1359.97ms. Allocated memory is still 360.7MB. Free memory was 263.0MB in the beginning and 128.9MB in the end (delta: 134.1MB). Peak memory consumption was 133.6MB. Max. memory is 8.0GB. * TraceAbstraction took 39874.38ms. Allocated memory was 360.7MB in the beginning and 6.0GB in the end (delta: 5.7GB). Free memory was 128.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 4.3GB. 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 - PositiveResult [Line: 1582]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.8s, OverallIterations: 19, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2713 SdHoareTripleChecker+Valid, 9.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2713 mSDsluCounter, 3937 SdHoareTripleChecker+Invalid, 7.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 552 mSDsCounter, 1407 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10252 IncrementalHoareTripleChecker+Invalid, 11659 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1407 mSolverCounterUnsat, 3385 mSDtfsCounter, 10252 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2053 GetRequests, 2019 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68145occurred in iteration=18, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.8s AutomataMinimizationTime, 19 MinimizatonAttempts, 22022 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 311 NumberOfFragments, 562 HoareAnnotationTreeSize, 1 FormulaSimplifications, 3554 FormulaSimplificationTreeSizeReduction, 4.6s HoareSimplificationTime, 1 FormulaSimplificationsInter, 10653 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 6687 NumberOfCodeBlocks, 6687 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 6661 ConstructedInterpolants, 0 QuantifiedInterpolants, 20753 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3648 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 26 InterpolantComputations, 19 PerfectInterpolantSequences, 2830/2872 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0)) || ((((((a26 == 0) && (a5 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a5 == 1) && (a12 == 1)) && (a3 <= 0)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((a5 == 1) && (a6 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1))) || (((((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a18 == 1)) && (a27 <= 0))) || ((((((a5 == 1) && (2 <= a3)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((a5 == 1) && (a11 == 1)) && (a3 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((((a26 == 0) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a3 == 1)) && (a6 == 1)) && (a18 == 1)) && (a27 <= 0))) || ((((((a5 == 1) && (a3 <= 0)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || ((((((a26 == 0) && (a5 == 1)) && (a11 == 1)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (2 <= a3)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a3 == 1)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a3 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || ((((((((a7 <= 0) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a3 <= 0)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a26 == 0) && (a5 == 1)) && (2 <= a3)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || ((((((a26 == 1) && (a5 == 1)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || (((((((a5 == 1) && (a12 == 1)) && (a3 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || ((((((a5 == 1) && (a3 <= 0)) && (a11 == 1)) && (a6 == 1)) && (a27 == 1)) && (a18 == 1))) || ((((((a26 == 1) && (a5 == 1)) && (a6 == 1)) && (a11 <= 0)) && (a18 == 1)) && (a27 <= 0))) || (((((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 == 1)) && (a18 == 1)) && (a27 <= 0)) && (a6 <= 0))) || (((((((a15 == 1) && (a5 == 1)) && (2 <= a3)) && (a11 <= 0)) && (a27 == 1)) && (a18 == 1)) && (a6 <= 0))) RESULT: Ultimate proved your program to be correct! [2023-12-15 18:16:53,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...