/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/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 02:39:04,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 02:39:04,917 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 02:39:04,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 02:39:04,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 02:39:04,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 02:39:04,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 02:39:04,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 02:39:04,942 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 02:39:04,952 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 02:39:04,952 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 02:39:04,953 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 02:39:04,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 02:39:04,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 02:39:04,954 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 02:39:04,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 02:39:04,954 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 02:39:04,954 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 02:39:04,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 02:39:04,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 02:39:04,955 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 02:39:04,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 02:39:04,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 02:39:04,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 02:39:04,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 02:39:04,956 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 02:39:04,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 02:39:04,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 02:39:04,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 02:39:04,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 02:39:04,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 02:39:04,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 02:39:04,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:39:04,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 02:39:04,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 02:39:04,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 02:39:04,957 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 02:39:04,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 02:39:04,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 02:39:04,958 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 02:39:04,958 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 02:39:04,959 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 02:39:04,959 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 02:39:04,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 02:39:05,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 02:39:05,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 02:39:05,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 02:39:05,131 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 02:39:05,131 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 02:39:05,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 02:39:06,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 02:39:06,507 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 02:39:06,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 02:39:06,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0b652aca/8f1ebbac154749709a021feba3bfd6f1/FLAG9836fb3f8 [2023-12-20 02:39:06,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0b652aca/8f1ebbac154749709a021feba3bfd6f1 [2023-12-20 02:39:06,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 02:39:06,534 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 02:39:06,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 02:39:06,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 02:39:06,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 02:39:06,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:39:06" (1/1) ... [2023-12-20 02:39:06,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5468815e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:06, skipping insertion in model container [2023-12-20 02:39:06,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 02:39:06" (1/1) ... [2023-12-20 02:39:06,596 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 02:39:06,824 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8127,8140] [2023-12-20 02:39:06,854 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14997,15010] [2023-12-20 02:39:06,863 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17084,17097] [2023-12-20 02:39:06,867 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18108,18121] [2023-12-20 02:39:06,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:39:06,966 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 02:39:06,995 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[8127,8140] [2023-12-20 02:39:07,015 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14997,15010] [2023-12-20 02:39:07,022 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[17084,17097] [2023-12-20 02:39:07,030 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18108,18121] [2023-12-20 02:39:07,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 02:39:07,198 INFO L206 MainTranslator]: Completed translation [2023-12-20 02:39:07,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07 WrapperNode [2023-12-20 02:39:07,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 02:39:07,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 02:39:07,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 02:39:07,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 02:39:07,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,319 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2614 [2023-12-20 02:39:07,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 02:39:07,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 02:39:07,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 02:39:07,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 02:39:07,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,379 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]. [2023-12-20 02:39:07,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,416 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 02:39:07,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 02:39:07,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 02:39:07,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 02:39:07,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (1/1) ... [2023-12-20 02:39:07,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 02:39:07,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:39:07,488 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) [2023-12-20 02:39:07,496 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 [2023-12-20 02:39:07,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 02:39:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 02:39:07,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 02:39:07,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 02:39:07,653 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 02:39:07,654 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 02:39:08,577 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 02:39:08,656 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 02:39:08,656 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-20 02:39:08,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:39:08 BoogieIcfgContainer [2023-12-20 02:39:08,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 02:39:08,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 02:39:08,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 02:39:08,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 02:39:08,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 02:39:06" (1/3) ... [2023-12-20 02:39:08,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3651af33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:39:08, skipping insertion in model container [2023-12-20 02:39:08,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 02:39:07" (2/3) ... [2023-12-20 02:39:08,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3651af33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 02:39:08, skipping insertion in model container [2023-12-20 02:39:08,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 02:39:08" (3/3) ... [2023-12-20 02:39:08,669 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2023-12-20 02:39:08,681 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 02:39:08,683 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-20 02:39:08,737 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 02:39:08,743 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;@66788fd4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 02:39:08,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-20 02:39:08,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 454 states, 449 states have (on average 1.8530066815144766) internal successors, (832), 453 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 02:39:08,766 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:08,767 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] [2023-12-20 02:39:08,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:08,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:08,772 INFO L85 PathProgramCache]: Analyzing trace with hash 34120099, now seen corresponding path program 1 times [2023-12-20 02:39:08,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:08,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117142580] [2023-12-20 02:39:08,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:08,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:09,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:09,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117142580] [2023-12-20 02:39:09,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117142580] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:09,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:09,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:39:09,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286090761] [2023-12-20 02:39:09,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:09,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:09,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:09,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:09,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:09,202 INFO L87 Difference]: Start difference. First operand has 454 states, 449 states have (on average 1.8530066815144766) internal successors, (832), 453 states have internal predecessors, (832), 0 states have call successors, (0), 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 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:09,630 INFO L93 Difference]: Finished difference Result 796 states and 1404 transitions. [2023-12-20 02:39:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:09,632 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 02:39:09,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:09,647 INFO L225 Difference]: With dead ends: 796 [2023-12-20 02:39:09,647 INFO L226 Difference]: Without dead ends: 505 [2023-12-20 02:39:09,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:09,653 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 2411 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2411 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:09,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2411 Valid, 614 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:39:09,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2023-12-20 02:39:09,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 499. [2023-12-20 02:39:09,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 495 states have (on average 1.3636363636363635) internal successors, (675), 498 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 675 transitions. [2023-12-20 02:39:09,691 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 675 transitions. Word has length 49 [2023-12-20 02:39:09,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:09,691 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 675 transitions. [2023-12-20 02:39:09,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,692 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 675 transitions. [2023-12-20 02:39:09,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 02:39:09,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:09,693 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] [2023-12-20 02:39:09,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 02:39:09,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:09,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:09,694 INFO L85 PathProgramCache]: Analyzing trace with hash 758566708, now seen corresponding path program 1 times [2023-12-20 02:39:09,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:09,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177929378] [2023-12-20 02:39:09,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:09,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:09,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:09,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:09,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177929378] [2023-12-20 02:39:09,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177929378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:09,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:09,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:09,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750155791] [2023-12-20 02:39:09,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:09,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:09,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:09,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:09,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:09,752 INFO L87 Difference]: Start difference. First operand 499 states and 675 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:09,778 INFO L93 Difference]: Finished difference Result 817 states and 1148 transitions. [2023-12-20 02:39:09,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:09,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 02:39:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:09,780 INFO L225 Difference]: With dead ends: 817 [2023-12-20 02:39:09,780 INFO L226 Difference]: Without dead ends: 610 [2023-12-20 02:39:09,781 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 [2023-12-20 02:39:09,782 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 323 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:09,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 869 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:09,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-12-20 02:39:09,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 603. [2023-12-20 02:39:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 599 states have (on average 1.3823038397328882) internal successors, (828), 602 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 828 transitions. [2023-12-20 02:39:09,810 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 828 transitions. Word has length 49 [2023-12-20 02:39:09,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:09,810 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 828 transitions. [2023-12-20 02:39:09,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 828 transitions. [2023-12-20 02:39:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 02:39:09,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:09,813 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] [2023-12-20 02:39:09,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 02:39:09,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:09,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:09,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1943064238, now seen corresponding path program 1 times [2023-12-20 02:39:09,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:09,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87839011] [2023-12-20 02:39:09,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:09,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:09,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:09,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87839011] [2023-12-20 02:39:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87839011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:09,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:09,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:09,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399581031] [2023-12-20 02:39:09,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:09,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:09,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:09,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:09,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:09,913 INFO L87 Difference]: Start difference. First operand 603 states and 828 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:09,957 INFO L93 Difference]: Finished difference Result 1204 states and 1718 transitions. [2023-12-20 02:39:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:09,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 02:39:09,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:09,962 INFO L225 Difference]: With dead ends: 1204 [2023-12-20 02:39:09,962 INFO L226 Difference]: Without dead ends: 899 [2023-12-20 02:39:09,963 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 [2023-12-20 02:39:09,965 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 279 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:09,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 902 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:09,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2023-12-20 02:39:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 892. [2023-12-20 02:39:09,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 888 states have (on average 1.4065315315315314) internal successors, (1249), 891 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1249 transitions. [2023-12-20 02:39:09,991 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1249 transitions. Word has length 49 [2023-12-20 02:39:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:09,991 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 1249 transitions. [2023-12-20 02:39:09,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1249 transitions. [2023-12-20 02:39:09,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-20 02:39:09,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:09,993 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] [2023-12-20 02:39:09,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 02:39:09,994 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:09,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:09,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1798780356, now seen corresponding path program 1 times [2023-12-20 02:39:09,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:09,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166458421] [2023-12-20 02:39:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:09,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:10,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:10,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166458421] [2023-12-20 02:39:10,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166458421] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:10,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:10,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:39:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588276767] [2023-12-20 02:39:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:10,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:10,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:10,123 INFO L87 Difference]: Start difference. First operand 892 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:10,368 INFO L93 Difference]: Finished difference Result 2159 states and 3108 transitions. [2023-12-20 02:39:10,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:10,368 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2023-12-20 02:39:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:10,372 INFO L225 Difference]: With dead ends: 2159 [2023-12-20 02:39:10,372 INFO L226 Difference]: Without dead ends: 1362 [2023-12-20 02:39:10,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:10,374 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 1589 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:10,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 362 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:39:10,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2023-12-20 02:39:10,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1356. [2023-12-20 02:39:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1356 states, 1352 states have (on average 1.4363905325443787) internal successors, (1942), 1355 states have internal predecessors, (1942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1942 transitions. [2023-12-20 02:39:10,391 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1942 transitions. Word has length 49 [2023-12-20 02:39:10,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:10,392 INFO L495 AbstractCegarLoop]: Abstraction has 1356 states and 1942 transitions. [2023-12-20 02:39:10,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1942 transitions. [2023-12-20 02:39:10,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-20 02:39:10,393 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:10,393 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] [2023-12-20 02:39:10,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 02:39:10,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:10,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:10,394 INFO L85 PathProgramCache]: Analyzing trace with hash -108782984, now seen corresponding path program 1 times [2023-12-20 02:39:10,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:10,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209583324] [2023-12-20 02:39:10,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:10,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:10,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:10,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:10,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209583324] [2023-12-20 02:39:10,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209583324] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:10,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:10,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:10,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142317798] [2023-12-20 02:39:10,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:10,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:10,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:10,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:10,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:10,432 INFO L87 Difference]: Start difference. First operand 1356 states and 1942 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:10,464 INFO L93 Difference]: Finished difference Result 3415 states and 4939 transitions. [2023-12-20 02:39:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:10,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2023-12-20 02:39:10,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:10,470 INFO L225 Difference]: With dead ends: 3415 [2023-12-20 02:39:10,470 INFO L226 Difference]: Without dead ends: 2243 [2023-12-20 02:39:10,471 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 [2023-12-20 02:39:10,472 INFO L413 NwaCegarLoop]: 518 mSDtfsCounter, 313 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:10,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 828 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:10,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2243 states. [2023-12-20 02:39:10,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2243 to 2225. [2023-12-20 02:39:10,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2221 states have (on average 1.4187303016659163) internal successors, (3151), 2224 states have internal predecessors, (3151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3151 transitions. [2023-12-20 02:39:10,503 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3151 transitions. Word has length 50 [2023-12-20 02:39:10,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:10,504 INFO L495 AbstractCegarLoop]: Abstraction has 2225 states and 3151 transitions. [2023-12-20 02:39:10,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3151 transitions. [2023-12-20 02:39:10,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-20 02:39:10,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:10,506 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] [2023-12-20 02:39:10,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 02:39:10,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:10,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:10,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1856759737, now seen corresponding path program 1 times [2023-12-20 02:39:10,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:10,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820643409] [2023-12-20 02:39:10,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:10,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:10,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:10,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:10,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820643409] [2023-12-20 02:39:10,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820643409] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:10,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:10,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:39:10,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191709954] [2023-12-20 02:39:10,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:10,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:10,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:10,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:10,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:10,567 INFO L87 Difference]: Start difference. First operand 2225 states and 3151 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:10,793 INFO L93 Difference]: Finished difference Result 5038 states and 7184 transitions. [2023-12-20 02:39:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:10,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 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 51 [2023-12-20 02:39:10,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:10,801 INFO L225 Difference]: With dead ends: 5038 [2023-12-20 02:39:10,801 INFO L226 Difference]: Without dead ends: 2983 [2023-12-20 02:39:10,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:10,804 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1392 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:10,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 338 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:39:10,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2023-12-20 02:39:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2964. [2023-12-20 02:39:10,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 2960 states have (on average 1.414864864864865) internal successors, (4188), 2963 states have internal predecessors, (4188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 4188 transitions. [2023-12-20 02:39:10,872 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 4188 transitions. Word has length 51 [2023-12-20 02:39:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:10,873 INFO L495 AbstractCegarLoop]: Abstraction has 2964 states and 4188 transitions. [2023-12-20 02:39:10,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 4188 transitions. [2023-12-20 02:39:10,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:39:10,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:10,875 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] [2023-12-20 02:39:10,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 02:39:10,875 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:10,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:10,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1124331061, now seen corresponding path program 1 times [2023-12-20 02:39:10,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:10,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260618695] [2023-12-20 02:39:10,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:10,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:10,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260618695] [2023-12-20 02:39:10,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260618695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:10,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:10,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:39:10,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652193422] [2023-12-20 02:39:10,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:10,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:39:10,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:10,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:39:10,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:10,969 INFO L87 Difference]: Start difference. First operand 2964 states and 4188 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:11,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:11,395 INFO L93 Difference]: Finished difference Result 9613 states and 13807 transitions. [2023-12-20 02:39:11,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:39:11,396 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-20 02:39:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:11,418 INFO L225 Difference]: With dead ends: 9613 [2023-12-20 02:39:11,419 INFO L226 Difference]: Without dead ends: 8310 [2023-12-20 02:39:11,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:39:11,425 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 2843 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:11,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2843 Valid, 602 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:39:11,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8310 states. [2023-12-20 02:39:11,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8310 to 2978. [2023-12-20 02:39:11,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2974 states have (on average 1.414256893073302) internal successors, (4206), 2977 states have internal predecessors, (4206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:11,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4206 transitions. [2023-12-20 02:39:11,540 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4206 transitions. Word has length 52 [2023-12-20 02:39:11,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:11,540 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 4206 transitions. [2023-12-20 02:39:11,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4206 transitions. [2023-12-20 02:39:11,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:39:11,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:11,543 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] [2023-12-20 02:39:11,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 02:39:11,543 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:11,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1221262858, now seen corresponding path program 1 times [2023-12-20 02:39:11,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:11,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130234759] [2023-12-20 02:39:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:11,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:11,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130234759] [2023-12-20 02:39:11,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130234759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:11,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:11,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:39:11,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9230163] [2023-12-20 02:39:11,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:11,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:39:11,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:11,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:39:11,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:11,671 INFO L87 Difference]: Start difference. First operand 2978 states and 4206 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:12,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:12,133 INFO L93 Difference]: Finished difference Result 10646 states and 15321 transitions. [2023-12-20 02:39:12,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:39:12,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-20 02:39:12,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:12,180 INFO L225 Difference]: With dead ends: 10646 [2023-12-20 02:39:12,180 INFO L226 Difference]: Without dead ends: 9534 [2023-12-20 02:39:12,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:39:12,193 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 2140 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2140 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:12,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2140 Valid, 763 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:39:12,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9534 states. [2023-12-20 02:39:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9534 to 3000. [2023-12-20 02:39:12,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3000 states, 2996 states have (on average 1.414218958611482) internal successors, (4237), 2999 states have internal predecessors, (4237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3000 states to 3000 states and 4237 transitions. [2023-12-20 02:39:12,297 INFO L78 Accepts]: Start accepts. Automaton has 3000 states and 4237 transitions. Word has length 52 [2023-12-20 02:39:12,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:12,298 INFO L495 AbstractCegarLoop]: Abstraction has 3000 states and 4237 transitions. [2023-12-20 02:39:12,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:12,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3000 states and 4237 transitions. [2023-12-20 02:39:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-20 02:39:12,304 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:12,304 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] [2023-12-20 02:39:12,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 02:39:12,305 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:12,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:12,306 INFO L85 PathProgramCache]: Analyzing trace with hash -163415276, now seen corresponding path program 1 times [2023-12-20 02:39:12,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:12,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615350716] [2023-12-20 02:39:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:12,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:12,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:12,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615350716] [2023-12-20 02:39:12,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615350716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:12,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:12,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:39:12,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853599607] [2023-12-20 02:39:12,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:12,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:39:12,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:12,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:39:12,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:12,407 INFO L87 Difference]: Start difference. First operand 3000 states and 4237 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:12,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:12,796 INFO L93 Difference]: Finished difference Result 12468 states and 17905 transitions. [2023-12-20 02:39:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:39:12,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2023-12-20 02:39:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:12,822 INFO L225 Difference]: With dead ends: 12468 [2023-12-20 02:39:12,822 INFO L226 Difference]: Without dead ends: 11500 [2023-12-20 02:39:12,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:39:12,828 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 3302 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:12,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 656 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:39:12,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11500 states. [2023-12-20 02:39:12,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11500 to 3034. [2023-12-20 02:39:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3034 states, 3030 states have (on average 1.4128712871287128) internal successors, (4281), 3033 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:12,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 4281 transitions. [2023-12-20 02:39:12,976 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 4281 transitions. Word has length 52 [2023-12-20 02:39:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:12,976 INFO L495 AbstractCegarLoop]: Abstraction has 3034 states and 4281 transitions. [2023-12-20 02:39:12,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 4281 transitions. [2023-12-20 02:39:12,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:39:12,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:12,978 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] [2023-12-20 02:39:12,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 02:39:12,978 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:12,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:12,979 INFO L85 PathProgramCache]: Analyzing trace with hash -55106621, now seen corresponding path program 1 times [2023-12-20 02:39:12,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:12,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334350030] [2023-12-20 02:39:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:12,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:13,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:13,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334350030] [2023-12-20 02:39:13,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334350030] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:13,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:13,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:39:13,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204320175] [2023-12-20 02:39:13,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:13,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:39:13,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:13,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:39:13,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:13,192 INFO L87 Difference]: Start difference. First operand 3034 states and 4281 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:13,707 INFO L93 Difference]: Finished difference Result 7987 states and 11510 transitions. [2023-12-20 02:39:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 02:39:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-20 02:39:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:13,717 INFO L225 Difference]: With dead ends: 7987 [2023-12-20 02:39:13,717 INFO L226 Difference]: Without dead ends: 6038 [2023-12-20 02:39:13,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:39:13,720 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1196 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:13,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1298 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:39:13,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6038 states. [2023-12-20 02:39:13,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6038 to 2944. [2023-12-20 02:39:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2940 states have (on average 1.4125850340136055) internal successors, (4153), 2943 states have internal predecessors, (4153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4153 transitions. [2023-12-20 02:39:13,767 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4153 transitions. Word has length 53 [2023-12-20 02:39:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:13,767 INFO L495 AbstractCegarLoop]: Abstraction has 2944 states and 4153 transitions. [2023-12-20 02:39:13,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4153 transitions. [2023-12-20 02:39:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:39:13,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:13,769 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] [2023-12-20 02:39:13,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 02:39:13,769 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:13,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:13,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1129390909, now seen corresponding path program 1 times [2023-12-20 02:39:13,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:13,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74097177] [2023-12-20 02:39:13,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:13,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:13,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:13,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:13,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74097177] [2023-12-20 02:39:13,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74097177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:13,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:13,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:39:13,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886032013] [2023-12-20 02:39:13,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:13,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:39:13,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:13,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:39:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:39:13,933 INFO L87 Difference]: Start difference. First operand 2944 states and 4153 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:14,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:14,542 INFO L93 Difference]: Finished difference Result 8198 states and 11782 transitions. [2023-12-20 02:39:14,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:39:14,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-20 02:39:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:14,554 INFO L225 Difference]: With dead ends: 8198 [2023-12-20 02:39:14,554 INFO L226 Difference]: Without dead ends: 6409 [2023-12-20 02:39:14,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:39:14,557 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 1127 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:14,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1507 Invalid, 1156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:39:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6409 states. [2023-12-20 02:39:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6409 to 2915. [2023-12-20 02:39:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.4125729989694262) internal successors, (4112), 2914 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:14,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4112 transitions. [2023-12-20 02:39:14,609 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4112 transitions. Word has length 53 [2023-12-20 02:39:14,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:14,609 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4112 transitions. [2023-12-20 02:39:14,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:14,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4112 transitions. [2023-12-20 02:39:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-20 02:39:14,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:14,611 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] [2023-12-20 02:39:14,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 02:39:14,611 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:14,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:14,612 INFO L85 PathProgramCache]: Analyzing trace with hash -421230622, now seen corresponding path program 1 times [2023-12-20 02:39:14,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:14,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348140172] [2023-12-20 02:39:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:14,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:14,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:14,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348140172] [2023-12-20 02:39:14,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348140172] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:14,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:14,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:39:14,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182972892] [2023-12-20 02:39:14,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:14,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:39:14,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:14,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:39:14,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:39:14,766 INFO L87 Difference]: Start difference. First operand 2915 states and 4112 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:15,387 INFO L93 Difference]: Finished difference Result 7119 states and 10241 transitions. [2023-12-20 02:39:15,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:39:15,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2023-12-20 02:39:15,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:15,397 INFO L225 Difference]: With dead ends: 7119 [2023-12-20 02:39:15,397 INFO L226 Difference]: Without dead ends: 7114 [2023-12-20 02:39:15,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:39:15,400 INFO L413 NwaCegarLoop]: 293 mSDtfsCounter, 1824 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:15,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 1231 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:39:15,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2023-12-20 02:39:15,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 2915. [2023-12-20 02:39:15,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.411885949845414) internal successors, (4110), 2914 states have internal predecessors, (4110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4110 transitions. [2023-12-20 02:39:15,464 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4110 transitions. Word has length 53 [2023-12-20 02:39:15,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:15,464 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4110 transitions. [2023-12-20 02:39:15,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4110 transitions. [2023-12-20 02:39:15,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:39:15,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:15,466 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] [2023-12-20 02:39:15,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 02:39:15,467 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:15,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:15,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1237294753, now seen corresponding path program 1 times [2023-12-20 02:39:15,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:15,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087172783] [2023-12-20 02:39:15,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:15,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:15,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:15,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087172783] [2023-12-20 02:39:15,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087172783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:15,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:15,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:15,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947981801] [2023-12-20 02:39:15,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:15,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:15,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:15,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:15,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:15,510 INFO L87 Difference]: Start difference. First operand 2915 states and 4110 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:15,543 INFO L93 Difference]: Finished difference Result 4185 states and 5951 transitions. [2023-12-20 02:39:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-20 02:39:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:15,547 INFO L225 Difference]: With dead ends: 4185 [2023-12-20 02:39:15,547 INFO L226 Difference]: Without dead ends: 2922 [2023-12-20 02:39:15,549 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 [2023-12-20 02:39:15,549 INFO L413 NwaCegarLoop]: 503 mSDtfsCounter, 226 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:15,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 802 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:15,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2023-12-20 02:39:15,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2915. [2023-12-20 02:39:15,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.3981449673651667) internal successors, (4070), 2914 states have internal predecessors, (4070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4070 transitions. [2023-12-20 02:39:15,591 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4070 transitions. Word has length 54 [2023-12-20 02:39:15,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:15,591 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4070 transitions. [2023-12-20 02:39:15,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4070 transitions. [2023-12-20 02:39:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:39:15,595 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:15,595 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] [2023-12-20 02:39:15,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 02:39:15,595 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:15,596 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:15,596 INFO L85 PathProgramCache]: Analyzing trace with hash -863697757, now seen corresponding path program 1 times [2023-12-20 02:39:15,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:15,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079511284] [2023-12-20 02:39:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:15,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:15,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:15,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079511284] [2023-12-20 02:39:15,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079511284] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:15,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:15,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:15,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120272971] [2023-12-20 02:39:15,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:15,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:15,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:15,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:15,640 INFO L87 Difference]: Start difference. First operand 2915 states and 4070 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:15,663 INFO L93 Difference]: Finished difference Result 4254 states and 5987 transitions. [2023-12-20 02:39:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:15,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-20 02:39:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:15,667 INFO L225 Difference]: With dead ends: 4254 [2023-12-20 02:39:15,667 INFO L226 Difference]: Without dead ends: 2921 [2023-12-20 02:39:15,669 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 [2023-12-20 02:39:15,669 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 242 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:15,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 803 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2023-12-20 02:39:15,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2915. [2023-12-20 02:39:15,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2911 states have (on average 1.385778083132944) internal successors, (4034), 2914 states have internal predecessors, (4034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4034 transitions. [2023-12-20 02:39:15,699 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4034 transitions. Word has length 54 [2023-12-20 02:39:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:15,699 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4034 transitions. [2023-12-20 02:39:15,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4034 transitions. [2023-12-20 02:39:15,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-20 02:39:15,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:15,701 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] [2023-12-20 02:39:15,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 02:39:15,702 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:15,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:15,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1589153365, now seen corresponding path program 1 times [2023-12-20 02:39:15,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:15,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829955828] [2023-12-20 02:39:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:15,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:15,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:15,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:15,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829955828] [2023-12-20 02:39:15,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829955828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:15,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:15,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:15,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715929129] [2023-12-20 02:39:15,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:15,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:15,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:15,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:15,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:15,737 INFO L87 Difference]: Start difference. First operand 2915 states and 4034 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:15,760 INFO L93 Difference]: Finished difference Result 3996 states and 5540 transitions. [2023-12-20 02:39:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2023-12-20 02:39:15,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:15,764 INFO L225 Difference]: With dead ends: 3996 [2023-12-20 02:39:15,764 INFO L226 Difference]: Without dead ends: 2906 [2023-12-20 02:39:15,767 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 [2023-12-20 02:39:15,767 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 261 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:15,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 814 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:15,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2023-12-20 02:39:15,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2900. [2023-12-20 02:39:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2896 states have (on average 1.3584254143646408) internal successors, (3934), 2899 states have internal predecessors, (3934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 3934 transitions. [2023-12-20 02:39:15,793 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 3934 transitions. Word has length 54 [2023-12-20 02:39:15,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:15,793 INFO L495 AbstractCegarLoop]: Abstraction has 2900 states and 3934 transitions. [2023-12-20 02:39:15,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 3934 transitions. [2023-12-20 02:39:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-20 02:39:15,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:15,795 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] [2023-12-20 02:39:15,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 02:39:15,796 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:15,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1127796312, now seen corresponding path program 1 times [2023-12-20 02:39:15,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:15,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338533763] [2023-12-20 02:39:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:15,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:15,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:15,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:15,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338533763] [2023-12-20 02:39:15,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338533763] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:15,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:15,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:15,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90553904] [2023-12-20 02:39:15,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:15,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:15,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:15,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:15,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:15,829 INFO L87 Difference]: Start difference. First operand 2900 states and 3934 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:15,873 INFO L93 Difference]: Finished difference Result 4575 states and 6263 transitions. [2023-12-20 02:39:15,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:15,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2023-12-20 02:39:15,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:15,877 INFO L225 Difference]: With dead ends: 4575 [2023-12-20 02:39:15,877 INFO L226 Difference]: Without dead ends: 3318 [2023-12-20 02:39:15,879 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 [2023-12-20 02:39:15,879 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 326 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:15,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 522 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3318 states. [2023-12-20 02:39:15,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3318 to 2718. [2023-12-20 02:39:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2714 states have (on average 1.3625644804716286) internal successors, (3698), 2717 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 3698 transitions. [2023-12-20 02:39:15,936 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 3698 transitions. Word has length 55 [2023-12-20 02:39:15,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:15,936 INFO L495 AbstractCegarLoop]: Abstraction has 2718 states and 3698 transitions. [2023-12-20 02:39:15,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:15,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 3698 transitions. [2023-12-20 02:39:15,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:39:15,938 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:15,938 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] [2023-12-20 02:39:15,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 02:39:15,938 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:15,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:15,939 INFO L85 PathProgramCache]: Analyzing trace with hash 847139516, now seen corresponding path program 1 times [2023-12-20 02:39:15,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:15,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513899643] [2023-12-20 02:39:15,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:15,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:15,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513899643] [2023-12-20 02:39:15,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513899643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:15,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:15,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:15,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923186626] [2023-12-20 02:39:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:15,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:15,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:15,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:15,981 INFO L87 Difference]: Start difference. First operand 2718 states and 3698 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:16,033 INFO L93 Difference]: Finished difference Result 4994 states and 6853 transitions. [2023-12-20 02:39:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 02:39:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:16,038 INFO L225 Difference]: With dead ends: 4994 [2023-12-20 02:39:16,038 INFO L226 Difference]: Without dead ends: 3333 [2023-12-20 02:39:16,040 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 [2023-12-20 02:39:16,041 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 302 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:16,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 460 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2023-12-20 02:39:16,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2582. [2023-12-20 02:39:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2582 states, 2578 states have (on average 1.3661753297129557) internal successors, (3522), 2581 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2582 states to 2582 states and 3522 transitions. [2023-12-20 02:39:16,065 INFO L78 Accepts]: Start accepts. Automaton has 2582 states and 3522 transitions. Word has length 56 [2023-12-20 02:39:16,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:16,065 INFO L495 AbstractCegarLoop]: Abstraction has 2582 states and 3522 transitions. [2023-12-20 02:39:16,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:16,065 INFO L276 IsEmpty]: Start isEmpty. Operand 2582 states and 3522 transitions. [2023-12-20 02:39:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:39:16,067 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:16,067 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] [2023-12-20 02:39:16,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 02:39:16,067 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:16,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:16,067 INFO L85 PathProgramCache]: Analyzing trace with hash 474120695, now seen corresponding path program 1 times [2023-12-20 02:39:16,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:16,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456075933] [2023-12-20 02:39:16,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:16,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:16,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:16,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:16,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456075933] [2023-12-20 02:39:16,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456075933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:16,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:16,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:39:16,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642606049] [2023-12-20 02:39:16,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:16,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:39:16,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:16,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:39:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:39:16,542 INFO L87 Difference]: Start difference. First operand 2582 states and 3522 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:17,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:17,227 INFO L93 Difference]: Finished difference Result 4640 states and 6423 transitions. [2023-12-20 02:39:17,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:39:17,228 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 02:39:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:17,257 INFO L225 Difference]: With dead ends: 4640 [2023-12-20 02:39:17,257 INFO L226 Difference]: Without dead ends: 4636 [2023-12-20 02:39:17,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:39:17,258 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 2076 mSDsluCounter, 2972 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:17,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 3452 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:39:17,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4636 states. [2023-12-20 02:39:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4636 to 2578. [2023-12-20 02:39:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2575 states have (on average 1.3658252427184465) internal successors, (3517), 2577 states have internal predecessors, (3517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3517 transitions. [2023-12-20 02:39:17,285 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3517 transitions. Word has length 56 [2023-12-20 02:39:17,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:17,285 INFO L495 AbstractCegarLoop]: Abstraction has 2578 states and 3517 transitions. [2023-12-20 02:39:17,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:17,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3517 transitions. [2023-12-20 02:39:17,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:39:17,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:17,286 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] [2023-12-20 02:39:17,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 02:39:17,287 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:17,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:17,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1321631968, now seen corresponding path program 1 times [2023-12-20 02:39:17,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:17,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947712631] [2023-12-20 02:39:17,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:17,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:17,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:17,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947712631] [2023-12-20 02:39:17,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947712631] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:17,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:17,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-20 02:39:17,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309934918] [2023-12-20 02:39:17,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:17,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:39:17,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:39:17,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2023-12-20 02:39:17,866 INFO L87 Difference]: Start difference. First operand 2578 states and 3517 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:19,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:19,383 INFO L93 Difference]: Finished difference Result 4033 states and 5533 transitions. [2023-12-20 02:39:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-20 02:39:19,384 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 02:39:19,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:19,390 INFO L225 Difference]: With dead ends: 4033 [2023-12-20 02:39:19,390 INFO L226 Difference]: Without dead ends: 4027 [2023-12-20 02:39:19,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=270, Invalid=1136, Unknown=0, NotChecked=0, Total=1406 [2023-12-20 02:39:19,392 INFO L413 NwaCegarLoop]: 334 mSDtfsCounter, 2659 mSDsluCounter, 3677 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2659 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:19,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2659 Valid, 4011 Invalid, 1936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-20 02:39:19,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2023-12-20 02:39:19,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 2578. [2023-12-20 02:39:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 2575 states have (on average 1.3654368932038834) internal successors, (3516), 2577 states have internal predecessors, (3516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:19,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3516 transitions. [2023-12-20 02:39:19,419 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3516 transitions. Word has length 56 [2023-12-20 02:39:19,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:19,419 INFO L495 AbstractCegarLoop]: Abstraction has 2578 states and 3516 transitions. [2023-12-20 02:39:19,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 18 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:19,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3516 transitions. [2023-12-20 02:39:19,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:39:19,421 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:19,421 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] [2023-12-20 02:39:19,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-20 02:39:19,421 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:19,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:19,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1854706179, now seen corresponding path program 1 times [2023-12-20 02:39:19,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:19,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805079966] [2023-12-20 02:39:19,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:19,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:19,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:19,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:19,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805079966] [2023-12-20 02:39:19,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805079966] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:19,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:19,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:39:19,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716456450] [2023-12-20 02:39:19,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:19,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:39:19,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:19,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:39:19,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:39:19,755 INFO L87 Difference]: Start difference. First operand 2578 states and 3516 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:20,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:20,365 INFO L93 Difference]: Finished difference Result 3815 states and 5248 transitions. [2023-12-20 02:39:20,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:39:20,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 02:39:20,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:20,370 INFO L225 Difference]: With dead ends: 3815 [2023-12-20 02:39:20,370 INFO L226 Difference]: Without dead ends: 3707 [2023-12-20 02:39:20,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2023-12-20 02:39:20,372 INFO L413 NwaCegarLoop]: 452 mSDtfsCounter, 2128 mSDsluCounter, 1969 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:20,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2128 Valid, 2421 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:39:20,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-20 02:39:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 2566. [2023-12-20 02:39:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 1.3662246489859595) internal successors, (3503), 2565 states have internal predecessors, (3503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3503 transitions. [2023-12-20 02:39:20,402 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3503 transitions. Word has length 56 [2023-12-20 02:39:20,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:20,402 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 3503 transitions. [2023-12-20 02:39:20,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3503 transitions. [2023-12-20 02:39:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:39:20,403 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:20,404 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] [2023-12-20 02:39:20,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-20 02:39:20,404 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:20,404 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1858163223, now seen corresponding path program 1 times [2023-12-20 02:39:20,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:20,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676446281] [2023-12-20 02:39:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:20,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:20,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676446281] [2023-12-20 02:39:20,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676446281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:20,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:20,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:39:20,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140134030] [2023-12-20 02:39:20,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:20,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:39:20,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:20,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:39:20,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:39:20,716 INFO L87 Difference]: Start difference. First operand 2566 states and 3503 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:21,396 INFO L93 Difference]: Finished difference Result 4426 states and 6111 transitions. [2023-12-20 02:39:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:39:21,396 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 02:39:21,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:21,402 INFO L225 Difference]: With dead ends: 4426 [2023-12-20 02:39:21,402 INFO L226 Difference]: Without dead ends: 4422 [2023-12-20 02:39:21,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2023-12-20 02:39:21,403 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 2156 mSDsluCounter, 3021 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:21,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3668 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:39:21,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4422 states. [2023-12-20 02:39:21,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4422 to 2566. [2023-12-20 02:39:21,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 2564 states have (on average 1.3658346333853355) internal successors, (3502), 2565 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3502 transitions. [2023-12-20 02:39:21,461 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3502 transitions. Word has length 56 [2023-12-20 02:39:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:21,461 INFO L495 AbstractCegarLoop]: Abstraction has 2566 states and 3502 transitions. [2023-12-20 02:39:21,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3502 transitions. [2023-12-20 02:39:21,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-20 02:39:21,463 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:21,463 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] [2023-12-20 02:39:21,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-20 02:39:21,463 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:21,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:21,464 INFO L85 PathProgramCache]: Analyzing trace with hash -612654208, now seen corresponding path program 1 times [2023-12-20 02:39:21,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:21,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809324650] [2023-12-20 02:39:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:21,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:21,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:21,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809324650] [2023-12-20 02:39:21,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809324650] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:21,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:21,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:21,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776164355] [2023-12-20 02:39:21,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:21,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:21,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:21,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:21,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:21,493 INFO L87 Difference]: Start difference. First operand 2566 states and 3502 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:21,527 INFO L93 Difference]: Finished difference Result 4736 states and 6522 transitions. [2023-12-20 02:39:21,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:21,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2023-12-20 02:39:21,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:21,531 INFO L225 Difference]: With dead ends: 4736 [2023-12-20 02:39:21,531 INFO L226 Difference]: Without dead ends: 3157 [2023-12-20 02:39:21,532 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 [2023-12-20 02:39:21,532 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 254 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:21,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 444 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:21,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3157 states. [2023-12-20 02:39:21,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3157 to 2470. [2023-12-20 02:39:21,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2470 states, 2469 states have (on average 1.3665451599837992) internal successors, (3374), 2469 states have internal predecessors, (3374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2470 states to 2470 states and 3374 transitions. [2023-12-20 02:39:21,554 INFO L78 Accepts]: Start accepts. Automaton has 2470 states and 3374 transitions. Word has length 56 [2023-12-20 02:39:21,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:21,554 INFO L495 AbstractCegarLoop]: Abstraction has 2470 states and 3374 transitions. [2023-12-20 02:39:21,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2470 states and 3374 transitions. [2023-12-20 02:39:21,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-20 02:39:21,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:21,557 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] [2023-12-20 02:39:21,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-20 02:39:21,557 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:21,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:21,558 INFO L85 PathProgramCache]: Analyzing trace with hash 35485201, now seen corresponding path program 1 times [2023-12-20 02:39:21,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:21,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640294189] [2023-12-20 02:39:21,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:21,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:21,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:21,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640294189] [2023-12-20 02:39:21,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640294189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:21,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:21,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:39:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151909663] [2023-12-20 02:39:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:21,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:21,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:21,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:21,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:21,609 INFO L87 Difference]: Start difference. First operand 2470 states and 3374 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:21,661 INFO L93 Difference]: Finished difference Result 6002 states and 8417 transitions. [2023-12-20 02:39:21,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:21,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2023-12-20 02:39:21,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:21,666 INFO L225 Difference]: With dead ends: 6002 [2023-12-20 02:39:21,666 INFO L226 Difference]: Without dead ends: 4539 [2023-12-20 02:39:21,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:21,668 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 989 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 989 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:21,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [989 Valid, 776 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:21,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2023-12-20 02:39:21,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 3842. [2023-12-20 02:39:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3842 states, 3841 states have (on average 1.3702160895600104) internal successors, (5263), 3841 states have internal predecessors, (5263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3842 states to 3842 states and 5263 transitions. [2023-12-20 02:39:21,707 INFO L78 Accepts]: Start accepts. Automaton has 3842 states and 5263 transitions. Word has length 65 [2023-12-20 02:39:21,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:21,708 INFO L495 AbstractCegarLoop]: Abstraction has 3842 states and 5263 transitions. [2023-12-20 02:39:21,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 3842 states and 5263 transitions. [2023-12-20 02:39:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-20 02:39:21,711 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:21,711 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] [2023-12-20 02:39:21,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-20 02:39:21,712 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:21,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1707524859, now seen corresponding path program 1 times [2023-12-20 02:39:21,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:21,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269087110] [2023-12-20 02:39:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:21,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:21,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:21,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:21,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269087110] [2023-12-20 02:39:21,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269087110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:21,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:21,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:39:21,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342302594] [2023-12-20 02:39:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:21,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:21,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:21,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:21,772 INFO L87 Difference]: Start difference. First operand 3842 states and 5263 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:21,829 INFO L93 Difference]: Finished difference Result 3848 states and 5266 transitions. [2023-12-20 02:39:21,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:21,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2023-12-20 02:39:21,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:21,833 INFO L225 Difference]: With dead ends: 3848 [2023-12-20 02:39:21,833 INFO L226 Difference]: Without dead ends: 3397 [2023-12-20 02:39:21,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:21,835 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 503 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:21,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 804 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:21,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2023-12-20 02:39:21,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 3393. [2023-12-20 02:39:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3393 states, 3392 states have (on average 1.3744103773584906) internal successors, (4662), 3392 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3393 states to 3393 states and 4662 transitions. [2023-12-20 02:39:21,866 INFO L78 Accepts]: Start accepts. Automaton has 3393 states and 4662 transitions. Word has length 66 [2023-12-20 02:39:21,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:21,866 INFO L495 AbstractCegarLoop]: Abstraction has 3393 states and 4662 transitions. [2023-12-20 02:39:21,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3393 states and 4662 transitions. [2023-12-20 02:39:21,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-20 02:39:21,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:21,870 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] [2023-12-20 02:39:21,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-20 02:39:21,870 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:21,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:21,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1245623863, now seen corresponding path program 1 times [2023-12-20 02:39:21,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:21,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097608365] [2023-12-20 02:39:21,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:21,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:21,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:21,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097608365] [2023-12-20 02:39:21,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097608365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:21,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:21,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:21,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727079301] [2023-12-20 02:39:21,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:21,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:21,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:21,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:21,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:21,935 INFO L87 Difference]: Start difference. First operand 3393 states and 4662 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:21,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:21,964 INFO L93 Difference]: Finished difference Result 7873 states and 10948 transitions. [2023-12-20 02:39:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2023-12-20 02:39:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:21,971 INFO L225 Difference]: With dead ends: 7873 [2023-12-20 02:39:21,971 INFO L226 Difference]: Without dead ends: 5533 [2023-12-20 02:39:21,973 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 [2023-12-20 02:39:21,974 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 151 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:21,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 549 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2023-12-20 02:39:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5227. [2023-12-20 02:39:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 5226 states have (on average 1.3815537696134712) internal successors, (7220), 5226 states have internal predecessors, (7220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 7220 transitions. [2023-12-20 02:39:22,028 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 7220 transitions. Word has length 67 [2023-12-20 02:39:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:22,029 INFO L495 AbstractCegarLoop]: Abstraction has 5227 states and 7220 transitions. [2023-12-20 02:39:22,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 7220 transitions. [2023-12-20 02:39:22,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:39:22,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:22,032 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] [2023-12-20 02:39:22,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-20 02:39:22,032 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:22,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash -44903959, now seen corresponding path program 1 times [2023-12-20 02:39:22,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:22,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737521139] [2023-12-20 02:39:22,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:22,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:22,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:22,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737521139] [2023-12-20 02:39:22,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737521139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:22,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:22,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:22,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990645320] [2023-12-20 02:39:22,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:22,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:22,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:22,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:22,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:22,107 INFO L87 Difference]: Start difference. First operand 5227 states and 7220 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:22,153 INFO L93 Difference]: Finished difference Result 12891 states and 17874 transitions. [2023-12-20 02:39:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:22,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-12-20 02:39:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:22,185 INFO L225 Difference]: With dead ends: 12891 [2023-12-20 02:39:22,186 INFO L226 Difference]: Without dead ends: 8465 [2023-12-20 02:39:22,191 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 [2023-12-20 02:39:22,191 INFO L413 NwaCegarLoop]: 358 mSDtfsCounter, 155 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:22,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 537 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:22,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8465 states. [2023-12-20 02:39:22,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8465 to 7831. [2023-12-20 02:39:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7831 states, 7830 states have (on average 1.3647509578544061) internal successors, (10686), 7830 states have internal predecessors, (10686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7831 states to 7831 states and 10686 transitions. [2023-12-20 02:39:22,287 INFO L78 Accepts]: Start accepts. Automaton has 7831 states and 10686 transitions. Word has length 69 [2023-12-20 02:39:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:22,288 INFO L495 AbstractCegarLoop]: Abstraction has 7831 states and 10686 transitions. [2023-12-20 02:39:22,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7831 states and 10686 transitions. [2023-12-20 02:39:22,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-20 02:39:22,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:22,290 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] [2023-12-20 02:39:22,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-12-20 02:39:22,291 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:22,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:22,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1924834057, now seen corresponding path program 1 times [2023-12-20 02:39:22,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:22,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068748907] [2023-12-20 02:39:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:22,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:22,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068748907] [2023-12-20 02:39:22,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068748907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:22,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:22,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:22,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578804738] [2023-12-20 02:39:22,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:22,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:22,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:22,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:22,349 INFO L87 Difference]: Start difference. First operand 7831 states and 10686 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:22,407 INFO L93 Difference]: Finished difference Result 21091 states and 28952 transitions. [2023-12-20 02:39:22,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:22,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2023-12-20 02:39:22,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:22,422 INFO L225 Difference]: With dead ends: 21091 [2023-12-20 02:39:22,423 INFO L226 Difference]: Without dead ends: 14061 [2023-12-20 02:39:22,431 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 [2023-12-20 02:39:22,432 INFO L413 NwaCegarLoop]: 326 mSDtfsCounter, 107 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:22,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 538 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:22,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14061 states. [2023-12-20 02:39:22,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14061 to 12843. [2023-12-20 02:39:22,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12843 states, 12842 states have (on average 1.361314437003582) internal successors, (17482), 12842 states have internal predecessors, (17482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12843 states to 12843 states and 17482 transitions. [2023-12-20 02:39:22,576 INFO L78 Accepts]: Start accepts. Automaton has 12843 states and 17482 transitions. Word has length 69 [2023-12-20 02:39:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:22,576 INFO L495 AbstractCegarLoop]: Abstraction has 12843 states and 17482 transitions. [2023-12-20 02:39:22,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,576 INFO L276 IsEmpty]: Start isEmpty. Operand 12843 states and 17482 transitions. [2023-12-20 02:39:22,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-20 02:39:22,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:22,578 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] [2023-12-20 02:39:22,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-20 02:39:22,579 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:22,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:22,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1192896973, now seen corresponding path program 1 times [2023-12-20 02:39:22,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:22,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976253717] [2023-12-20 02:39:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:22,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:22,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:22,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:22,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:22,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976253717] [2023-12-20 02:39:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976253717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:39:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391374143] [2023-12-20 02:39:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:22,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 02:39:22,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 02:39:22,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 02:39:22,703 INFO L87 Difference]: Start difference. First operand 12843 states and 17482 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:22,802 INFO L93 Difference]: Finished difference Result 27601 states and 36921 transitions. [2023-12-20 02:39:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:39:22,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2023-12-20 02:39:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:22,892 INFO L225 Difference]: With dead ends: 27601 [2023-12-20 02:39:22,892 INFO L226 Difference]: Without dead ends: 27599 [2023-12-20 02:39:22,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:39:22,897 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 381 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:22,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 1327 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:22,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27599 states. [2023-12-20 02:39:23,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27599 to 14187. [2023-12-20 02:39:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14187 states, 14186 states have (on average 1.3270830396165234) internal successors, (18826), 14186 states have internal predecessors, (18826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:23,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14187 states to 14187 states and 18826 transitions. [2023-12-20 02:39:23,062 INFO L78 Accepts]: Start accepts. Automaton has 14187 states and 18826 transitions. Word has length 71 [2023-12-20 02:39:23,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:23,062 INFO L495 AbstractCegarLoop]: Abstraction has 14187 states and 18826 transitions. [2023-12-20 02:39:23,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:23,063 INFO L276 IsEmpty]: Start isEmpty. Operand 14187 states and 18826 transitions. [2023-12-20 02:39:23,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-20 02:39:23,065 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:23,065 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] [2023-12-20 02:39:23,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-12-20 02:39:23,065 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:23,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:23,066 INFO L85 PathProgramCache]: Analyzing trace with hash -16724346, now seen corresponding path program 1 times [2023-12-20 02:39:23,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:23,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079846994] [2023-12-20 02:39:23,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:23,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:23,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:23,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079846994] [2023-12-20 02:39:23,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079846994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:23,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:23,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:39:23,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475306631] [2023-12-20 02:39:23,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:23,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:39:23,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:23,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:39:23,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:39:23,102 INFO L87 Difference]: Start difference. First operand 14187 states and 18826 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:23,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:23,180 INFO L93 Difference]: Finished difference Result 34327 states and 45620 transitions. [2023-12-20 02:39:23,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:39:23,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2023-12-20 02:39:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:23,205 INFO L225 Difference]: With dead ends: 34327 [2023-12-20 02:39:23,205 INFO L226 Difference]: Without dead ends: 20941 [2023-12-20 02:39:23,221 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 [2023-12-20 02:39:23,222 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 170 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:23,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 422 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:23,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20941 states. [2023-12-20 02:39:23,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20941 to 20715. [2023-12-20 02:39:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20715 states, 20714 states have (on average 1.3066525055518008) internal successors, (27066), 20714 states have internal predecessors, (27066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:23,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20715 states to 20715 states and 27066 transitions. [2023-12-20 02:39:23,565 INFO L78 Accepts]: Start accepts. Automaton has 20715 states and 27066 transitions. Word has length 72 [2023-12-20 02:39:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:23,565 INFO L495 AbstractCegarLoop]: Abstraction has 20715 states and 27066 transitions. [2023-12-20 02:39:23,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:23,565 INFO L276 IsEmpty]: Start isEmpty. Operand 20715 states and 27066 transitions. [2023-12-20 02:39:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-20 02:39:23,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:23,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:39:23,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-12-20 02:39:23,568 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:23,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:23,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1274470703, now seen corresponding path program 1 times [2023-12-20 02:39:23,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:23,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676909999] [2023-12-20 02:39:23,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:23,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:23,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:23,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676909999] [2023-12-20 02:39:23,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676909999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:23,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:23,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:39:23,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046361412] [2023-12-20 02:39:23,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:23,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:23,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:23,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:23,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:23,636 INFO L87 Difference]: Start difference. First operand 20715 states and 27066 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:23,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:23,728 INFO L93 Difference]: Finished difference Result 30635 states and 40267 transitions. [2023-12-20 02:39:23,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:23,728 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2023-12-20 02:39:23,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:23,756 INFO L225 Difference]: With dead ends: 30635 [2023-12-20 02:39:23,756 INFO L226 Difference]: Without dead ends: 26061 [2023-12-20 02:39:23,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:23,769 INFO L413 NwaCegarLoop]: 369 mSDtfsCounter, 610 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:23,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 856 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:23,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26061 states. [2023-12-20 02:39:24,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26061 to 23707. [2023-12-20 02:39:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23707 states, 23706 states have (on average 1.3037205770690965) internal successors, (30906), 23706 states have internal predecessors, (30906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:24,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23707 states to 23707 states and 30906 transitions. [2023-12-20 02:39:24,070 INFO L78 Accepts]: Start accepts. Automaton has 23707 states and 30906 transitions. Word has length 73 [2023-12-20 02:39:24,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:24,070 INFO L495 AbstractCegarLoop]: Abstraction has 23707 states and 30906 transitions. [2023-12-20 02:39:24,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:24,071 INFO L276 IsEmpty]: Start isEmpty. Operand 23707 states and 30906 transitions. [2023-12-20 02:39:24,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-20 02:39:24,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:24,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:39:24,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-12-20 02:39:24,074 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:24,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:24,074 INFO L85 PathProgramCache]: Analyzing trace with hash -2035560395, now seen corresponding path program 1 times [2023-12-20 02:39:24,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:24,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430320828] [2023-12-20 02:39:24,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:24,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:24,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:24,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430320828] [2023-12-20 02:39:24,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430320828] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:24,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:24,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:39:24,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773113472] [2023-12-20 02:39:24,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:24,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:24,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:24,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:24,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:24,251 INFO L87 Difference]: Start difference. First operand 23707 states and 30906 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:24,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:24,351 INFO L93 Difference]: Finished difference Result 32071 states and 42039 transitions. [2023-12-20 02:39:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:24,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2023-12-20 02:39:24,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:24,384 INFO L225 Difference]: With dead ends: 32071 [2023-12-20 02:39:24,384 INFO L226 Difference]: Without dead ends: 27497 [2023-12-20 02:39:24,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:24,397 INFO L413 NwaCegarLoop]: 360 mSDtfsCounter, 614 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 614 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:24,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [614 Valid, 882 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:24,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27497 states. [2023-12-20 02:39:24,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27497 to 26683. [2023-12-20 02:39:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26683 states, 26682 states have (on average 1.301514129375609) internal successors, (34727), 26682 states have internal predecessors, (34727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26683 states to 26683 states and 34727 transitions. [2023-12-20 02:39:24,728 INFO L78 Accepts]: Start accepts. Automaton has 26683 states and 34727 transitions. Word has length 75 [2023-12-20 02:39:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:24,728 INFO L495 AbstractCegarLoop]: Abstraction has 26683 states and 34727 transitions. [2023-12-20 02:39:24,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 26683 states and 34727 transitions. [2023-12-20 02:39:24,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-20 02:39:24,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:24,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:39:24,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-12-20 02:39:24,731 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:24,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:24,731 INFO L85 PathProgramCache]: Analyzing trace with hash -490024547, now seen corresponding path program 1 times [2023-12-20 02:39:24,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:24,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015312746] [2023-12-20 02:39:24,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:24,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:24,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015312746] [2023-12-20 02:39:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015312746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:24,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:24,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:39:24,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506654249] [2023-12-20 02:39:24,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:24,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:39:24,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:39:24,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:39:24,886 INFO L87 Difference]: Start difference. First operand 26683 states and 34727 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:25,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:25,016 INFO L93 Difference]: Finished difference Result 37923 states and 49683 transitions. [2023-12-20 02:39:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:39:25,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2023-12-20 02:39:25,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:25,057 INFO L225 Difference]: With dead ends: 37923 [2023-12-20 02:39:25,057 INFO L226 Difference]: Without dead ends: 31153 [2023-12-20 02:39:25,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:39:25,075 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 629 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 629 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:25,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [629 Valid, 859 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:39:25,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31153 states. [2023-12-20 02:39:25,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31153 to 30339. [2023-12-20 02:39:25,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30339 states, 30338 states have (on average 1.298140945349067) internal successors, (39383), 30338 states have internal predecessors, (39383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:25,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30339 states to 30339 states and 39383 transitions. [2023-12-20 02:39:25,457 INFO L78 Accepts]: Start accepts. Automaton has 30339 states and 39383 transitions. Word has length 76 [2023-12-20 02:39:25,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:25,457 INFO L495 AbstractCegarLoop]: Abstraction has 30339 states and 39383 transitions. [2023-12-20 02:39:25,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:25,457 INFO L276 IsEmpty]: Start isEmpty. Operand 30339 states and 39383 transitions. [2023-12-20 02:39:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 02:39:25,466 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:25,466 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] [2023-12-20 02:39:25,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-12-20 02:39:25,466 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:25,467 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:25,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1795661640, now seen corresponding path program 1 times [2023-12-20 02:39:25,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:25,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690932129] [2023-12-20 02:39:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:25,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:39:25,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:25,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690932129] [2023-12-20 02:39:25,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690932129] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:25,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:25,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:39:25,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323385299] [2023-12-20 02:39:25,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:25,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:39:25,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:25,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:39:25,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:39:25,707 INFO L87 Difference]: Start difference. First operand 30339 states and 39383 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:26,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:26,439 INFO L93 Difference]: Finished difference Result 76692 states and 99157 transitions. [2023-12-20 02:39:26,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:39:26,439 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 91 [2023-12-20 02:39:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:26,504 INFO L225 Difference]: With dead ends: 76692 [2023-12-20 02:39:26,504 INFO L226 Difference]: Without dead ends: 55378 [2023-12-20 02:39:26,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:39:26,531 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 836 mSDsluCounter, 963 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:26,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1239 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:39:26,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55378 states. [2023-12-20 02:39:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55378 to 30223. [2023-12-20 02:39:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30223 states, 30222 states have (on average 1.298358811461849) internal successors, (39239), 30222 states have internal predecessors, (39239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:27,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30223 states to 30223 states and 39239 transitions. [2023-12-20 02:39:27,080 INFO L78 Accepts]: Start accepts. Automaton has 30223 states and 39239 transitions. Word has length 91 [2023-12-20 02:39:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:27,080 INFO L495 AbstractCegarLoop]: Abstraction has 30223 states and 39239 transitions. [2023-12-20 02:39:27,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 30223 states and 39239 transitions. [2023-12-20 02:39:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-20 02:39:27,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:27,088 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] [2023-12-20 02:39:27,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-12-20 02:39:27,089 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:27,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:27,089 INFO L85 PathProgramCache]: Analyzing trace with hash -732608151, now seen corresponding path program 1 times [2023-12-20 02:39:27,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:27,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66469368] [2023-12-20 02:39:27,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:27,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:39:27,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:27,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66469368] [2023-12-20 02:39:27,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66469368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:39:27,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:39:27,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:39:27,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869703974] [2023-12-20 02:39:27,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:39:27,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:39:27,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:27,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:39:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:39:27,241 INFO L87 Difference]: Start difference. First operand 30223 states and 39239 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:39:27,970 INFO L93 Difference]: Finished difference Result 90013 states and 116812 transitions. [2023-12-20 02:39:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 02:39:27,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 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 91 [2023-12-20 02:39:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:39:28,082 INFO L225 Difference]: With dead ends: 90013 [2023-12-20 02:39:28,082 INFO L226 Difference]: Without dead ends: 74447 [2023-12-20 02:39:28,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2023-12-20 02:39:28,119 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1115 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:39:28,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 1192 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:39:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74447 states. [2023-12-20 02:39:28,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74447 to 30177. [2023-12-20 02:39:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30177 states, 30176 states have (on average 1.2983828207847297) internal successors, (39180), 30176 states have internal predecessors, (39180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30177 states to 30177 states and 39180 transitions. [2023-12-20 02:39:28,729 INFO L78 Accepts]: Start accepts. Automaton has 30177 states and 39180 transitions. Word has length 91 [2023-12-20 02:39:28,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:39:28,729 INFO L495 AbstractCegarLoop]: Abstraction has 30177 states and 39180 transitions. [2023-12-20 02:39:28,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:39:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand 30177 states and 39180 transitions. [2023-12-20 02:39:28,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:39:28,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:39:28,740 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] [2023-12-20 02:39:28,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-12-20 02:39:28,741 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:39:28,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:39:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash -365813274, now seen corresponding path program 1 times [2023-12-20 02:39:28,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:39:28,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393643975] [2023-12-20 02:39:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:28,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:39:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:28,963 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:28,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:39:28,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393643975] [2023-12-20 02:39:28,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393643975] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:39:28,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397236760] [2023-12-20 02:39:28,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:39:28,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:39:28,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:39:28,967 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) [2023-12-20 02:39:28,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 02:39:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:39:29,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 02:39:29,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:39:29,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:29,953 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:39:30,791 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:39:30,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397236760] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:39:30,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:39:30,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 13] total 30 [2023-12-20 02:39:30,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68552293] [2023-12-20 02:39:30,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:39:30,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-12-20 02:39:30,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:39:30,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-12-20 02:39:30,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=818, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:39:30,794 INFO L87 Difference]: Start difference. First operand 30177 states and 39180 transitions. Second operand has 31 states, 31 states have (on average 7.903225806451613) internal successors, (245), 30 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:07,379 INFO L93 Difference]: Finished difference Result 393050 states and 498121 transitions. [2023-12-20 02:40:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2023-12-20 02:40:07,380 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.903225806451613) internal successors, (245), 30 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:40:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:08,310 INFO L225 Difference]: With dead ends: 393050 [2023-12-20 02:40:08,310 INFO L226 Difference]: Without dead ends: 377144 [2023-12-20 02:40:08,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 160 SyntacticMatches, 1 SemanticMatches, 474 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102820 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=28298, Invalid=197802, Unknown=0, NotChecked=0, Total=226100 [2023-12-20 02:40:08,417 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 12518 mSDsluCounter, 12146 mSDsCounter, 0 mSdLazyCounter, 12001 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12518 SdHoareTripleChecker+Valid, 12742 SdHoareTripleChecker+Invalid, 12179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 12001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:08,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12518 Valid, 12742 Invalid, 12179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [178 Valid, 12001 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-12-20 02:40:08,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377144 states. [2023-12-20 02:40:10,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377144 to 30680. [2023-12-20 02:40:10,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30680 states, 30679 states have (on average 1.2975325140975913) internal successors, (39807), 30679 states have internal predecessors, (39807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:10,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30680 states to 30680 states and 39807 transitions. [2023-12-20 02:40:10,341 INFO L78 Accepts]: Start accepts. Automaton has 30680 states and 39807 transitions. Word has length 92 [2023-12-20 02:40:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:10,341 INFO L495 AbstractCegarLoop]: Abstraction has 30680 states and 39807 transitions. [2023-12-20 02:40:10,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.903225806451613) internal successors, (245), 30 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 30680 states and 39807 transitions. [2023-12-20 02:40:10,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:40:10,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:10,349 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] [2023-12-20 02:40:10,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 02:40:10,555 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,SelfDestructingSolverStorable34 [2023-12-20 02:40:10,556 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:10,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:10,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1504612839, now seen corresponding path program 1 times [2023-12-20 02:40:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:10,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596769247] [2023-12-20 02:40:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:10,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:10,864 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:10,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:10,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596769247] [2023-12-20 02:40:10,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596769247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:40:10,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:40:10,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-20 02:40:10,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415662973] [2023-12-20 02:40:10,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:40:10,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-20 02:40:10,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:10,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-20 02:40:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:40:10,866 INFO L87 Difference]: Start difference. First operand 30680 states and 39807 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:11,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:11,730 INFO L93 Difference]: Finished difference Result 98784 states and 127093 transitions. [2023-12-20 02:40:11,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:40:11,731 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:40:11,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:11,961 INFO L225 Difference]: With dead ends: 98784 [2023-12-20 02:40:11,961 INFO L226 Difference]: Without dead ends: 83291 [2023-12-20 02:40:11,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2023-12-20 02:40:11,976 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 1631 mSDsluCounter, 1045 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1631 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:11,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1631 Valid, 1303 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1015 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:40:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83291 states. [2023-12-20 02:40:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83291 to 48476. [2023-12-20 02:40:12,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48476 states, 48475 states have (on average 1.29706034038164) internal successors, (62875), 48475 states have internal predecessors, (62875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48476 states to 48476 states and 62875 transitions. [2023-12-20 02:40:12,642 INFO L78 Accepts]: Start accepts. Automaton has 48476 states and 62875 transitions. Word has length 92 [2023-12-20 02:40:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:12,642 INFO L495 AbstractCegarLoop]: Abstraction has 48476 states and 62875 transitions. [2023-12-20 02:40:12,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:12,642 INFO L276 IsEmpty]: Start isEmpty. Operand 48476 states and 62875 transitions. [2023-12-20 02:40:12,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-20 02:40:12,650 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:12,650 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] [2023-12-20 02:40:12,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-12-20 02:40:12,650 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:12,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:12,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1675726985, now seen corresponding path program 1 times [2023-12-20 02:40:12,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:12,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906214024] [2023-12-20 02:40:12,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:12,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:12,803 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:12,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:12,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906214024] [2023-12-20 02:40:12,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906214024] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:40:12,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181154677] [2023-12-20 02:40:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:12,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:12,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:40:12,804 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) [2023-12-20 02:40:12,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 02:40:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:12,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:40:12,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:40:13,645 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:13,645 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:40:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:14,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181154677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:40:14,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:40:14,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 29 [2023-12-20 02:40:14,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637679020] [2023-12-20 02:40:14,270 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:40:14,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:40:14,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:14,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:40:14,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=765, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:40:14,271 INFO L87 Difference]: Start difference. First operand 48476 states and 62875 transitions. Second operand has 30 states, 30 states have (on average 8.233333333333333) internal successors, (247), 29 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:31,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:31,534 INFO L93 Difference]: Finished difference Result 442594 states and 563318 transitions. [2023-12-20 02:40:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 310 states. [2023-12-20 02:40:31,535 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.233333333333333) internal successors, (247), 29 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-12-20 02:40:31,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:32,571 INFO L225 Difference]: With dead ends: 442594 [2023-12-20 02:40:32,571 INFO L226 Difference]: Without dead ends: 419344 [2023-12-20 02:40:32,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 336 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50124 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=17226, Invalid=96680, Unknown=0, NotChecked=0, Total=113906 [2023-12-20 02:40:32,636 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 9101 mSDsluCounter, 7755 mSDsCounter, 0 mSdLazyCounter, 7410 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9101 SdHoareTripleChecker+Valid, 8356 SdHoareTripleChecker+Invalid, 7565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 7410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:32,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9101 Valid, 8356 Invalid, 7565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 7410 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-12-20 02:40:32,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419344 states. [2023-12-20 02:40:35,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419344 to 93726. [2023-12-20 02:40:35,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93726 states, 93725 states have (on average 1.2963670312083222) internal successors, (121502), 93725 states have internal predecessors, (121502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:35,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93726 states to 93726 states and 121502 transitions. [2023-12-20 02:40:35,638 INFO L78 Accepts]: Start accepts. Automaton has 93726 states and 121502 transitions. Word has length 92 [2023-12-20 02:40:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:35,640 INFO L495 AbstractCegarLoop]: Abstraction has 93726 states and 121502 transitions. [2023-12-20 02:40:35,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.233333333333333) internal successors, (247), 29 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:35,640 INFO L276 IsEmpty]: Start isEmpty. Operand 93726 states and 121502 transitions. [2023-12-20 02:40:35,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:40:35,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:35,667 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] [2023-12-20 02:40:35,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 02:40:35,867 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,SelfDestructingSolverStorable36 [2023-12-20 02:40:35,870 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:35,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:35,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1965411061, now seen corresponding path program 1 times [2023-12-20 02:40:35,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:35,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561111812] [2023-12-20 02:40:35,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:35,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-20 02:40:35,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:35,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561111812] [2023-12-20 02:40:35,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561111812] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:40:35,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:40:35,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:40:35,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563103921] [2023-12-20 02:40:35,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:40:35,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:40:35,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:35,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:40:35,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:40:35,912 INFO L87 Difference]: Start difference. First operand 93726 states and 121502 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:36,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:36,631 INFO L93 Difference]: Finished difference Result 185039 states and 240217 transitions. [2023-12-20 02:40:36,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:40:36,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2023-12-20 02:40:36,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:36,794 INFO L225 Difference]: With dead ends: 185039 [2023-12-20 02:40:36,794 INFO L226 Difference]: Without dead ends: 93071 [2023-12-20 02:40:36,841 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 [2023-12-20 02:40:36,842 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 213 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:36,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 254 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:40:36,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93071 states. [2023-12-20 02:40:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93071 to 93071. [2023-12-20 02:40:37,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93071 states, 93070 states have (on average 1.2816482217685612) internal successors, (119283), 93070 states have internal predecessors, (119283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93071 states to 93071 states and 119283 transitions. [2023-12-20 02:40:38,059 INFO L78 Accepts]: Start accepts. Automaton has 93071 states and 119283 transitions. Word has length 93 [2023-12-20 02:40:38,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:38,060 INFO L495 AbstractCegarLoop]: Abstraction has 93071 states and 119283 transitions. [2023-12-20 02:40:38,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:38,060 INFO L276 IsEmpty]: Start isEmpty. Operand 93071 states and 119283 transitions. [2023-12-20 02:40:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-20 02:40:38,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:38,071 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] [2023-12-20 02:40:38,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-12-20 02:40:38,072 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:38,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash -225364972, now seen corresponding path program 1 times [2023-12-20 02:40:38,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:38,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012130735] [2023-12-20 02:40:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:38,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:38,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:38,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012130735] [2023-12-20 02:40:38,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012130735] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:40:38,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381802265] [2023-12-20 02:40:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:38,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:38,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:40:38,408 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) [2023-12-20 02:40:38,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 02:40:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:38,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-20 02:40:38,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:40:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:38,675 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:40:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:38,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381802265] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:40:38,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:40:38,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-12-20 02:40:38,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285091392] [2023-12-20 02:40:38,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:40:38,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:40:38,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:38,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:40:38,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:40:38,815 INFO L87 Difference]: Start difference. First operand 93071 states and 119283 transitions. Second operand has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 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) [2023-12-20 02:40:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:39,632 INFO L93 Difference]: Finished difference Result 267051 states and 339922 transitions. [2023-12-20 02:40:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 02:40:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 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 93 [2023-12-20 02:40:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:39,882 INFO L225 Difference]: With dead ends: 267051 [2023-12-20 02:40:39,883 INFO L226 Difference]: Without dead ends: 175953 [2023-12-20 02:40:40,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 181 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:40:40,174 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 383 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:40,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1197 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:40:40,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175953 states. [2023-12-20 02:40:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175953 to 136907. [2023-12-20 02:40:41,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136907 states, 136906 states have (on average 1.2754736826727828) internal successors, (174620), 136906 states have internal predecessors, (174620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136907 states to 136907 states and 174620 transitions. [2023-12-20 02:40:42,227 INFO L78 Accepts]: Start accepts. Automaton has 136907 states and 174620 transitions. Word has length 93 [2023-12-20 02:40:42,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:42,227 INFO L495 AbstractCegarLoop]: Abstraction has 136907 states and 174620 transitions. [2023-12-20 02:40:42,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.625) internal successors, (181), 8 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) [2023-12-20 02:40:42,228 INFO L276 IsEmpty]: Start isEmpty. Operand 136907 states and 174620 transitions. [2023-12-20 02:40:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-20 02:40:42,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:42,244 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:40:42,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 02:40:42,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:42,450 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:42,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:42,451 INFO L85 PathProgramCache]: Analyzing trace with hash -899942983, now seen corresponding path program 1 times [2023-12-20 02:40:42,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:42,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309339904] [2023-12-20 02:40:42,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:42,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:40:42,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:42,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309339904] [2023-12-20 02:40:42,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309339904] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:40:42,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:40:42,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:40:42,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754127748] [2023-12-20 02:40:42,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:40:42,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:40:42,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:42,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:40:42,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:40:42,486 INFO L87 Difference]: Start difference. First operand 136907 states and 174620 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:43,575 INFO L93 Difference]: Finished difference Result 253021 states and 323273 transitions. [2023-12-20 02:40:43,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:40:43,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2023-12-20 02:40:43,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:43,749 INFO L225 Difference]: With dead ends: 253021 [2023-12-20 02:40:43,749 INFO L226 Difference]: Without dead ends: 117485 [2023-12-20 02:40:43,851 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 [2023-12-20 02:40:43,852 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 213 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:43,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 234 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:40:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117485 states. [2023-12-20 02:40:45,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117485 to 117485. [2023-12-20 02:40:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117485 states, 117484 states have (on average 1.2612525960981922) internal successors, (148177), 117484 states have internal predecessors, (148177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117485 states to 117485 states and 148177 transitions. [2023-12-20 02:40:45,475 INFO L78 Accepts]: Start accepts. Automaton has 117485 states and 148177 transitions. Word has length 98 [2023-12-20 02:40:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:45,475 INFO L495 AbstractCegarLoop]: Abstraction has 117485 states and 148177 transitions. [2023-12-20 02:40:45,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 117485 states and 148177 transitions. [2023-12-20 02:40:45,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-20 02:40:45,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:45,491 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:40:45,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-12-20 02:40:45,491 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:45,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:45,492 INFO L85 PathProgramCache]: Analyzing trace with hash -565270020, now seen corresponding path program 1 times [2023-12-20 02:40:45,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:45,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294625606] [2023-12-20 02:40:45,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:45,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:45,540 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:45,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294625606] [2023-12-20 02:40:45,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294625606] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:40:45,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867340644] [2023-12-20 02:40:45,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:45,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:45,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:40:45,541 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) [2023-12-20 02:40:45,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-20 02:40:45,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:45,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:40:45,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:40:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:46,337 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:40:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:46,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867340644] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:40:46,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:40:46,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:40:46,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591606237] [2023-12-20 02:40:46,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:40:46,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:40:46,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:46,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:40:46,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:40:46,470 INFO L87 Difference]: Start difference. First operand 117485 states and 148177 transitions. Second operand has 14 states, 14 states have (on average 18.857142857142858) internal successors, (264), 14 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:47,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:47,871 INFO L93 Difference]: Finished difference Result 276204 states and 345291 transitions. [2023-12-20 02:40:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:40:47,871 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.857142857142858) internal successors, (264), 14 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-12-20 02:40:47,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:48,108 INFO L225 Difference]: With dead ends: 276204 [2023-12-20 02:40:48,108 INFO L226 Difference]: Without dead ends: 188010 [2023-12-20 02:40:48,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:40:48,171 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 3701 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:48,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3701 Valid, 859 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:40:48,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188010 states. [2023-12-20 02:40:49,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188010 to 124777. [2023-12-20 02:40:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124777 states, 124776 states have (on average 1.2558264409822402) internal successors, (156697), 124776 states have internal predecessors, (156697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:50,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124777 states to 124777 states and 156697 transitions. [2023-12-20 02:40:50,033 INFO L78 Accepts]: Start accepts. Automaton has 124777 states and 156697 transitions. Word has length 99 [2023-12-20 02:40:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:50,033 INFO L495 AbstractCegarLoop]: Abstraction has 124777 states and 156697 transitions. [2023-12-20 02:40:50,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.857142857142858) internal successors, (264), 14 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 124777 states and 156697 transitions. [2023-12-20 02:40:50,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:40:50,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:50,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:40:50,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-20 02:40:50,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:50,260 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:50,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:50,260 INFO L85 PathProgramCache]: Analyzing trace with hash -800518154, now seen corresponding path program 1 times [2023-12-20 02:40:50,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:50,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868398801] [2023-12-20 02:40:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:50,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:50,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:50,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:50,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868398801] [2023-12-20 02:40:50,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868398801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:40:50,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:40:50,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 02:40:50,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352703773] [2023-12-20 02:40:50,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:40:50,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 02:40:50,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:50,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 02:40:50,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:40:50,315 INFO L87 Difference]: Start difference. First operand 124777 states and 156697 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:51,361 INFO L93 Difference]: Finished difference Result 260831 states and 326968 transitions. [2023-12-20 02:40:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-20 02:40:51,361 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:40:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:51,556 INFO L225 Difference]: With dead ends: 260831 [2023-12-20 02:40:51,556 INFO L226 Difference]: Without dead ends: 137332 [2023-12-20 02:40:51,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-20 02:40:51,642 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 652 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:51,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 497 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:40:51,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137332 states. [2023-12-20 02:40:53,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137332 to 114227. [2023-12-20 02:40:53,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114227 states, 114226 states have (on average 1.232565265351146) internal successors, (140791), 114226 states have internal predecessors, (140791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114227 states to 114227 states and 140791 transitions. [2023-12-20 02:40:53,361 INFO L78 Accepts]: Start accepts. Automaton has 114227 states and 140791 transitions. Word has length 100 [2023-12-20 02:40:53,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:53,362 INFO L495 AbstractCegarLoop]: Abstraction has 114227 states and 140791 transitions. [2023-12-20 02:40:53,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 114227 states and 140791 transitions. [2023-12-20 02:40:53,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-20 02:40:53,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:53,379 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:40:53,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-12-20 02:40:53,379 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:53,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:53,380 INFO L85 PathProgramCache]: Analyzing trace with hash 356644248, now seen corresponding path program 1 times [2023-12-20 02:40:53,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:53,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448987943] [2023-12-20 02:40:53,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:53,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:53,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:53,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:53,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448987943] [2023-12-20 02:40:53,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448987943] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:40:53,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129295989] [2023-12-20 02:40:53,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:53,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:53,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:40:53,442 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) [2023-12-20 02:40:53,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-20 02:40:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:53,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-20 02:40:53,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:40:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:53,816 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:40:53,943 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:40:53,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129295989] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:40:53,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:40:53,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 14 [2023-12-20 02:40:53,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997566299] [2023-12-20 02:40:53,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:40:53,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:40:53,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:53,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:40:53,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:40:53,944 INFO L87 Difference]: Start difference. First operand 114227 states and 140791 transitions. Second operand has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:55,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:55,326 INFO L93 Difference]: Finished difference Result 275941 states and 337249 transitions. [2023-12-20 02:40:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:40:55,327 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2023-12-20 02:40:55,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:55,548 INFO L225 Difference]: With dead ends: 275941 [2023-12-20 02:40:55,548 INFO L226 Difference]: Without dead ends: 163321 [2023-12-20 02:40:55,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2023-12-20 02:40:55,634 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 3013 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3013 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:55,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3013 Valid, 881 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:40:55,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163321 states. [2023-12-20 02:40:57,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163321 to 119308. [2023-12-20 02:40:57,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119308 states, 119307 states have (on average 1.2256782921370917) internal successors, (146232), 119307 states have internal predecessors, (146232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119308 states to 119308 states and 146232 transitions. [2023-12-20 02:40:57,428 INFO L78 Accepts]: Start accepts. Automaton has 119308 states and 146232 transitions. Word has length 100 [2023-12-20 02:40:57,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:40:57,429 INFO L495 AbstractCegarLoop]: Abstraction has 119308 states and 146232 transitions. [2023-12-20 02:40:57,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.642857142857142) internal successors, (275), 14 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 119308 states and 146232 transitions. [2023-12-20 02:40:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-20 02:40:57,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:40:57,444 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:40:57,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-20 02:40:57,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:40:57,649 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:40:57,652 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:40:57,652 INFO L85 PathProgramCache]: Analyzing trace with hash -710852847, now seen corresponding path program 1 times [2023-12-20 02:40:57,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:40:57,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860075635] [2023-12-20 02:40:57,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:40:57,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:40:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:40:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:40:57,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:40:57,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860075635] [2023-12-20 02:40:57,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860075635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:40:57,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:40:57,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 02:40:57,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802497906] [2023-12-20 02:40:57,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:40:57,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 02:40:57,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:40:57,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 02:40:57,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 02:40:57,795 INFO L87 Difference]: Start difference. First operand 119308 states and 146232 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:40:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:40:58,656 INFO L93 Difference]: Finished difference Result 160935 states and 195225 transitions. [2023-12-20 02:40:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-20 02:40:58,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2023-12-20 02:40:58,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:40:58,823 INFO L225 Difference]: With dead ends: 160935 [2023-12-20 02:40:58,824 INFO L226 Difference]: Without dead ends: 140839 [2023-12-20 02:40:58,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:40:58,857 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1868 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1868 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:40:58,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1868 Valid, 522 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:40:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140839 states. [2023-12-20 02:41:00,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140839 to 119206. [2023-12-20 02:41:00,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119206 states, 119205 states have (on average 1.2257203976343274) internal successors, (146112), 119205 states have internal predecessors, (146112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:00,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119206 states to 119206 states and 146112 transitions. [2023-12-20 02:41:00,597 INFO L78 Accepts]: Start accepts. Automaton has 119206 states and 146112 transitions. Word has length 101 [2023-12-20 02:41:00,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:00,598 INFO L495 AbstractCegarLoop]: Abstraction has 119206 states and 146112 transitions. [2023-12-20 02:41:00,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:00,598 INFO L276 IsEmpty]: Start isEmpty. Operand 119206 states and 146112 transitions. [2023-12-20 02:41:00,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 02:41:00,611 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:00,611 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:41:00,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-12-20 02:41:00,611 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:00,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:00,613 INFO L85 PathProgramCache]: Analyzing trace with hash -2128694049, now seen corresponding path program 1 times [2023-12-20 02:41:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:00,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744638769] [2023-12-20 02:41:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:00,670 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:00,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:00,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744638769] [2023-12-20 02:41:00,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744638769] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:00,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:00,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:41:00,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402874840] [2023-12-20 02:41:00,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:00,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:41:00,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:00,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:41:00,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:41:00,671 INFO L87 Difference]: Start difference. First operand 119206 states and 146112 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:01,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:01,079 INFO L93 Difference]: Finished difference Result 175342 states and 214754 transitions. [2023-12-20 02:41:01,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:41:01,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2023-12-20 02:41:01,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:01,259 INFO L225 Difference]: With dead ends: 175342 [2023-12-20 02:41:01,259 INFO L226 Difference]: Without dead ends: 139600 [2023-12-20 02:41:01,312 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 [2023-12-20 02:41:01,312 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 117 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:01,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 591 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:41:01,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139600 states. [2023-12-20 02:41:02,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139600 to 118196. [2023-12-20 02:41:02,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118196 states, 118195 states have (on average 1.2201531367655145) internal successors, (144216), 118195 states have internal predecessors, (144216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:02,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118196 states to 118196 states and 144216 transitions. [2023-12-20 02:41:02,992 INFO L78 Accepts]: Start accepts. Automaton has 118196 states and 144216 transitions. Word has length 102 [2023-12-20 02:41:02,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:02,993 INFO L495 AbstractCegarLoop]: Abstraction has 118196 states and 144216 transitions. [2023-12-20 02:41:02,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:02,993 INFO L276 IsEmpty]: Start isEmpty. Operand 118196 states and 144216 transitions. [2023-12-20 02:41:03,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:41:03,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:03,007 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:03,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-12-20 02:41:03,008 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:03,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:03,008 INFO L85 PathProgramCache]: Analyzing trace with hash 2113033655, now seen corresponding path program 1 times [2023-12-20 02:41:03,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:03,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946363108] [2023-12-20 02:41:03,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:03,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:03,107 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:41:03,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:03,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946363108] [2023-12-20 02:41:03,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946363108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:03,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:03,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:41:03,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076003321] [2023-12-20 02:41:03,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:03,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:41:03,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:03,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:41:03,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:41:03,109 INFO L87 Difference]: Start difference. First operand 118196 states and 144216 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:03,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:03,971 INFO L93 Difference]: Finished difference Result 228595 states and 279378 transitions. [2023-12-20 02:41:03,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:41:03,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2023-12-20 02:41:03,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:04,209 INFO L225 Difference]: With dead ends: 228595 [2023-12-20 02:41:04,209 INFO L226 Difference]: Without dead ends: 192372 [2023-12-20 02:41:04,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:41:04,268 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 334 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:04,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 756 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:41:04,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192372 states. [2023-12-20 02:41:05,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192372 to 136222. [2023-12-20 02:41:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136222 states, 136221 states have (on average 1.2215003560390836) internal successors, (166394), 136221 states have internal predecessors, (166394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:06,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136222 states to 136222 states and 166394 transitions. [2023-12-20 02:41:06,176 INFO L78 Accepts]: Start accepts. Automaton has 136222 states and 166394 transitions. Word has length 103 [2023-12-20 02:41:06,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:06,176 INFO L495 AbstractCegarLoop]: Abstraction has 136222 states and 166394 transitions. [2023-12-20 02:41:06,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:06,177 INFO L276 IsEmpty]: Start isEmpty. Operand 136222 states and 166394 transitions. [2023-12-20 02:41:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-20 02:41:06,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:06,192 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:06,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2023-12-20 02:41:06,192 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:06,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:06,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1750914930, now seen corresponding path program 1 times [2023-12-20 02:41:06,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:06,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822379214] [2023-12-20 02:41:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:06,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:06,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:06,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:06,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822379214] [2023-12-20 02:41:06,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822379214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:06,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:06,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:41:06,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425244396] [2023-12-20 02:41:06,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:06,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:41:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:06,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:41:06,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:41:06,329 INFO L87 Difference]: Start difference. First operand 136222 states and 166394 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:07,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:07,148 INFO L93 Difference]: Finished difference Result 231058 states and 281858 transitions. [2023-12-20 02:41:07,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:41:07,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2023-12-20 02:41:07,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:07,254 INFO L225 Difference]: With dead ends: 231058 [2023-12-20 02:41:07,254 INFO L226 Difference]: Without dead ends: 96266 [2023-12-20 02:41:07,313 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 [2023-12-20 02:41:07,313 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 109 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:07,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 457 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:41:07,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96266 states. [2023-12-20 02:41:08,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96266 to 95769. [2023-12-20 02:41:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95769 states, 95768 states have (on average 1.196673210258124) internal successors, (114603), 95768 states have internal predecessors, (114603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95769 states to 95769 states and 114603 transitions. [2023-12-20 02:41:08,537 INFO L78 Accepts]: Start accepts. Automaton has 95769 states and 114603 transitions. Word has length 103 [2023-12-20 02:41:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:08,538 INFO L495 AbstractCegarLoop]: Abstraction has 95769 states and 114603 transitions. [2023-12-20 02:41:08,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 95769 states and 114603 transitions. [2023-12-20 02:41:08,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:41:08,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:08,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:41:08,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2023-12-20 02:41:08,546 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:08,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:08,546 INFO L85 PathProgramCache]: Analyzing trace with hash -984227769, now seen corresponding path program 1 times [2023-12-20 02:41:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:08,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075320031] [2023-12-20 02:41:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:08,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-20 02:41:08,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:08,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075320031] [2023-12-20 02:41:08,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075320031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:08,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:08,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:41:08,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472165918] [2023-12-20 02:41:08,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:08,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:41:08,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:08,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:41:08,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:41:08,600 INFO L87 Difference]: Start difference. First operand 95769 states and 114603 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:09,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:09,368 INFO L93 Difference]: Finished difference Result 196506 states and 234151 transitions. [2023-12-20 02:41:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:41:09,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:41:09,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:09,566 INFO L225 Difference]: With dead ends: 196506 [2023-12-20 02:41:09,566 INFO L226 Difference]: Without dead ends: 162472 [2023-12-20 02:41:09,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:41:09,601 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 329 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:09,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 728 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:41:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162472 states. [2023-12-20 02:41:10,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162472 to 111389. [2023-12-20 02:41:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111389 states, 111388 states have (on average 1.1964574280892017) internal successors, (133271), 111388 states have internal predecessors, (133271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:11,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111389 states to 111389 states and 133271 transitions. [2023-12-20 02:41:11,415 INFO L78 Accepts]: Start accepts. Automaton has 111389 states and 133271 transitions. Word has length 104 [2023-12-20 02:41:11,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:11,415 INFO L495 AbstractCegarLoop]: Abstraction has 111389 states and 133271 transitions. [2023-12-20 02:41:11,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:11,415 INFO L276 IsEmpty]: Start isEmpty. Operand 111389 states and 133271 transitions. [2023-12-20 02:41:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:41:11,424 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:11,425 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:41:11,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2023-12-20 02:41:11,425 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:11,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:11,425 INFO L85 PathProgramCache]: Analyzing trace with hash -347665854, now seen corresponding path program 1 times [2023-12-20 02:41:11,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:11,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117412700] [2023-12-20 02:41:11,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:11,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:11,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117412700] [2023-12-20 02:41:11,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117412700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:11,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:11,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:41:11,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599469613] [2023-12-20 02:41:11,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:11,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:41:11,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:11,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:41:11,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:41:11,461 INFO L87 Difference]: Start difference. First operand 111389 states and 133271 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:11,804 INFO L93 Difference]: Finished difference Result 159686 states and 190706 transitions. [2023-12-20 02:41:11,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:41:11,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:41:11,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:11,945 INFO L225 Difference]: With dead ends: 159686 [2023-12-20 02:41:11,945 INFO L226 Difference]: Without dead ends: 111581 [2023-12-20 02:41:11,994 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 [2023-12-20 02:41:11,994 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 92 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:11,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 588 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:41:12,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111581 states. [2023-12-20 02:41:13,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111581 to 105818. [2023-12-20 02:41:13,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105818 states, 105817 states have (on average 1.1914248183184177) internal successors, (126073), 105817 states have internal predecessors, (126073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105818 states to 105818 states and 126073 transitions. [2023-12-20 02:41:13,382 INFO L78 Accepts]: Start accepts. Automaton has 105818 states and 126073 transitions. Word has length 104 [2023-12-20 02:41:13,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:13,382 INFO L495 AbstractCegarLoop]: Abstraction has 105818 states and 126073 transitions. [2023-12-20 02:41:13,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:13,382 INFO L276 IsEmpty]: Start isEmpty. Operand 105818 states and 126073 transitions. [2023-12-20 02:41:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:41:13,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:13,391 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:13,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2023-12-20 02:41:13,391 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:13,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1029536315, now seen corresponding path program 1 times [2023-12-20 02:41:13,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:13,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488040424] [2023-12-20 02:41:13,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:13,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:14,351 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:14,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:14,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488040424] [2023-12-20 02:41:14,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488040424] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:41:14,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625546292] [2023-12-20 02:41:14,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:14,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:41:14,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:41:14,356 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) [2023-12-20 02:41:14,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-20 02:41:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:14,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:41:14,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:41:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:15,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:41:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:15,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625546292] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:41:15,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:41:15,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 10] total 35 [2023-12-20 02:41:15,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965674117] [2023-12-20 02:41:15,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:41:15,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-20 02:41:15,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:15,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-20 02:41:15,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1084, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:41:15,549 INFO L87 Difference]: Start difference. First operand 105818 states and 126073 transitions. Second operand has 35 states, 35 states have (on average 7.857142857142857) internal successors, (275), 35 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:20,444 INFO L93 Difference]: Finished difference Result 213588 states and 252891 transitions. [2023-12-20 02:41:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-12-20 02:41:20,444 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 7.857142857142857) internal successors, (275), 35 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:41:20,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:20,833 INFO L225 Difference]: With dead ends: 213588 [2023-12-20 02:41:20,833 INFO L226 Difference]: Without dead ends: 203454 [2023-12-20 02:41:20,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2251 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1478, Invalid=7642, Unknown=0, NotChecked=0, Total=9120 [2023-12-20 02:41:20,875 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 4696 mSDsluCounter, 11051 mSDsCounter, 0 mSdLazyCounter, 3698 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4696 SdHoareTripleChecker+Valid, 11651 SdHoareTripleChecker+Invalid, 3723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:20,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4696 Valid, 11651 Invalid, 3723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 3698 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:41:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203454 states. [2023-12-20 02:41:22,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203454 to 105813. [2023-12-20 02:41:22,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105813 states, 105812 states have (on average 1.1913393565947152) internal successors, (126058), 105812 states have internal predecessors, (126058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:22,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105813 states to 105813 states and 126058 transitions. [2023-12-20 02:41:22,486 INFO L78 Accepts]: Start accepts. Automaton has 105813 states and 126058 transitions. Word has length 104 [2023-12-20 02:41:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:22,486 INFO L495 AbstractCegarLoop]: Abstraction has 105813 states and 126058 transitions. [2023-12-20 02:41:22,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 7.857142857142857) internal successors, (275), 35 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 105813 states and 126058 transitions. [2023-12-20 02:41:22,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:41:22,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:22,496 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:22,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-20 02:41:22,701 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,SelfDestructingSolverStorable49 [2023-12-20 02:41:22,701 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:22,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:22,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1285144548, now seen corresponding path program 1 times [2023-12-20 02:41:22,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:22,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830701598] [2023-12-20 02:41:22,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:22,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:23,659 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:23,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:23,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830701598] [2023-12-20 02:41:23,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830701598] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:41:23,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229737294] [2023-12-20 02:41:23,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:23,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:41:23,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:41:23,661 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) [2023-12-20 02:41:23,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-20 02:41:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:23,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-20 02:41:23,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:41:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:24,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:41:24,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229737294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:24,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:41:24,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 28 [2023-12-20 02:41:24,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346807375] [2023-12-20 02:41:24,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:24,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:41:24,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:24,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:41:24,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:41:24,337 INFO L87 Difference]: Start difference. First operand 105813 states and 126058 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:25,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:25,110 INFO L93 Difference]: Finished difference Result 159302 states and 190267 transitions. [2023-12-20 02:41:25,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:41:25,110 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:41:25,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:25,243 INFO L225 Difference]: With dead ends: 159302 [2023-12-20 02:41:25,243 INFO L226 Difference]: Without dead ends: 125444 [2023-12-20 02:41:25,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=202, Invalid=1358, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:41:25,286 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 926 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:25,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 3318 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:41:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125444 states. [2023-12-20 02:41:26,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125444 to 118708. [2023-12-20 02:41:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118708 states, 118707 states have (on average 1.193029897141702) internal successors, (141621), 118707 states have internal predecessors, (141621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118708 states to 118708 states and 141621 transitions. [2023-12-20 02:41:26,766 INFO L78 Accepts]: Start accepts. Automaton has 118708 states and 141621 transitions. Word has length 104 [2023-12-20 02:41:26,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:26,767 INFO L495 AbstractCegarLoop]: Abstraction has 118708 states and 141621 transitions. [2023-12-20 02:41:26,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 10 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:26,767 INFO L276 IsEmpty]: Start isEmpty. Operand 118708 states and 141621 transitions. [2023-12-20 02:41:26,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-20 02:41:26,777 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:26,778 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:26,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-20 02:41:26,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:41:26,984 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:26,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:26,984 INFO L85 PathProgramCache]: Analyzing trace with hash -966304062, now seen corresponding path program 1 times [2023-12-20 02:41:26,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:26,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001855096] [2023-12-20 02:41:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:26,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:27,997 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:27,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:27,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001855096] [2023-12-20 02:41:27,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001855096] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:41:27,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1869221487] [2023-12-20 02:41:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:27,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:41:27,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:41:27,999 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:41:28,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-20 02:41:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:28,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-20 02:41:28,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:41:28,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:28,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:41:29,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:29,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1869221487] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:41:29,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:41:29,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 10] total 34 [2023-12-20 02:41:29,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964174348] [2023-12-20 02:41:29,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:41:29,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-20 02:41:29,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:29,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-20 02:41:29,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1018, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 02:41:29,058 INFO L87 Difference]: Start difference. First operand 118708 states and 141621 transitions. Second operand has 34 states, 34 states have (on average 8.264705882352942) internal successors, (281), 34 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:40,892 INFO L93 Difference]: Finished difference Result 206418 states and 244515 transitions. [2023-12-20 02:41:40,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2023-12-20 02:41:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 8.264705882352942) internal successors, (281), 34 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2023-12-20 02:41:40,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:41,130 INFO L225 Difference]: With dead ends: 206418 [2023-12-20 02:41:41,130 INFO L226 Difference]: Without dead ends: 191711 [2023-12-20 02:41:41,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8654 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=4662, Invalid=22070, Unknown=0, NotChecked=0, Total=26732 [2023-12-20 02:41:41,177 INFO L413 NwaCegarLoop]: 1211 mSDtfsCounter, 4061 mSDsluCounter, 17908 mSDsCounter, 0 mSdLazyCounter, 6405 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4061 SdHoareTripleChecker+Valid, 19119 SdHoareTripleChecker+Invalid, 6429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 6405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:41,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4061 Valid, 19119 Invalid, 6429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 6405 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-20 02:41:41,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191711 states. [2023-12-20 02:41:42,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191711 to 121812. [2023-12-20 02:41:42,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121812 states, 121811 states have (on average 1.1918135472165896) internal successors, (145176), 121811 states have internal predecessors, (145176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:42,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121812 states to 121812 states and 145176 transitions. [2023-12-20 02:41:42,841 INFO L78 Accepts]: Start accepts. Automaton has 121812 states and 145176 transitions. Word has length 104 [2023-12-20 02:41:42,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:42,841 INFO L495 AbstractCegarLoop]: Abstraction has 121812 states and 145176 transitions. [2023-12-20 02:41:42,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 8.264705882352942) internal successors, (281), 34 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:42,841 INFO L276 IsEmpty]: Start isEmpty. Operand 121812 states and 145176 transitions. [2023-12-20 02:41:42,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:41:42,853 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:42,853 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:42,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-20 02:41:43,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2023-12-20 02:41:43,058 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:43,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:43,059 INFO L85 PathProgramCache]: Analyzing trace with hash -706906666, now seen corresponding path program 1 times [2023-12-20 02:41:43,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:43,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596942605] [2023-12-20 02:41:43,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:43,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:44,015 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:44,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:44,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596942605] [2023-12-20 02:41:44,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596942605] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:44,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:44,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-12-20 02:41:44,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322067838] [2023-12-20 02:41:44,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:44,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-20 02:41:44,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:44,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-20 02:41:44,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:41:44,017 INFO L87 Difference]: Start difference. First operand 121812 states and 145176 transitions. Second operand has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:47,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:47,240 INFO L93 Difference]: Finished difference Result 200195 states and 239076 transitions. [2023-12-20 02:41:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2023-12-20 02:41:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:41:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:47,442 INFO L225 Difference]: With dead ends: 200195 [2023-12-20 02:41:47,442 INFO L226 Difference]: Without dead ends: 195229 [2023-12-20 02:41:47,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1889 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1119, Invalid=5201, Unknown=0, NotChecked=0, Total=6320 [2023-12-20 02:41:47,482 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 1870 mSDsluCounter, 7577 mSDsCounter, 0 mSdLazyCounter, 2330 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 8250 SdHoareTripleChecker+Invalid, 2343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:47,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 8250 Invalid, 2343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2330 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 02:41:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195229 states. [2023-12-20 02:41:48,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195229 to 123126. [2023-12-20 02:41:49,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123126 states, 123125 states have (on average 1.1914314720812182) internal successors, (146695), 123125 states have internal predecessors, (146695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:49,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123126 states to 123126 states and 146695 transitions. [2023-12-20 02:41:49,217 INFO L78 Accepts]: Start accepts. Automaton has 123126 states and 146695 transitions. Word has length 105 [2023-12-20 02:41:49,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:49,217 INFO L495 AbstractCegarLoop]: Abstraction has 123126 states and 146695 transitions. [2023-12-20 02:41:49,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.25) internal successors, (105), 19 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 123126 states and 146695 transitions. [2023-12-20 02:41:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:41:49,230 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:49,230 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:49,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2023-12-20 02:41:49,230 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:49,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:49,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1410294565, now seen corresponding path program 1 times [2023-12-20 02:41:49,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:49,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657151475] [2023-12-20 02:41:49,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:49,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:49,283 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-20 02:41:49,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657151475] [2023-12-20 02:41:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657151475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:41:49,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:41:49,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:41:49,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910405121] [2023-12-20 02:41:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:41:49,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:41:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:49,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:41:49,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:41:49,284 INFO L87 Difference]: Start difference. First operand 123126 states and 146695 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:50,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:41:50,183 INFO L93 Difference]: Finished difference Result 255675 states and 303643 transitions. [2023-12-20 02:41:50,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:41:50,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:41:50,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:41:50,454 INFO L225 Difference]: With dead ends: 255675 [2023-12-20 02:41:50,454 INFO L226 Difference]: Without dead ends: 211225 [2023-12-20 02:41:50,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:41:50,509 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 404 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:41:50,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 701 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:41:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211225 states. [2023-12-20 02:41:52,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211225 to 121770. [2023-12-20 02:41:52,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121770 states, 121769 states have (on average 1.1911652391002636) internal successors, (145047), 121769 states have internal predecessors, (145047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:52,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121770 states to 121770 states and 145047 transitions. [2023-12-20 02:41:52,618 INFO L78 Accepts]: Start accepts. Automaton has 121770 states and 145047 transitions. Word has length 105 [2023-12-20 02:41:52,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:41:52,619 INFO L495 AbstractCegarLoop]: Abstraction has 121770 states and 145047 transitions. [2023-12-20 02:41:52,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:41:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 121770 states and 145047 transitions. [2023-12-20 02:41:52,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:41:52,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:41:52,628 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:41:52,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2023-12-20 02:41:52,628 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:41:52,628 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:41:52,628 INFO L85 PathProgramCache]: Analyzing trace with hash 2046856480, now seen corresponding path program 1 times [2023-12-20 02:41:52,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:41:52,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41135260] [2023-12-20 02:41:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:41:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:53,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:53,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:41:53,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41135260] [2023-12-20 02:41:53,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41135260] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:41:53,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596695981] [2023-12-20 02:41:53,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:41:53,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:41:53,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:41:53,223 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:41:53,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-20 02:41:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:41:53,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:41:53,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:41:53,848 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:53,849 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:41:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:41:54,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596695981] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:41:54,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:41:54,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 32 [2023-12-20 02:41:54,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113212686] [2023-12-20 02:41:54,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:41:54,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-20 02:41:54,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:41:54,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-20 02:41:54,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=906, Unknown=0, NotChecked=0, Total=992 [2023-12-20 02:41:54,460 INFO L87 Difference]: Start difference. First operand 121770 states and 145047 transitions. Second operand has 32 states, 32 states have (on average 9.0625) internal successors, (290), 32 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:40,514 INFO L93 Difference]: Finished difference Result 573013 states and 678070 transitions. [2023-12-20 02:42:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 619 states. [2023-12-20 02:42:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.0625) internal successors, (290), 32 states have internal predecessors, (290), 0 states have call successors, (0), 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 105 [2023-12-20 02:42:40,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:41,297 INFO L225 Difference]: With dead ends: 573013 [2023-12-20 02:42:41,297 INFO L226 Difference]: Without dead ends: 553156 [2023-12-20 02:42:41,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 839 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 647 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193443 ImplicationChecksByTransitivity, 37.6s TimeCoverageRelationStatistics Valid=38232, Invalid=382320, Unknown=0, NotChecked=0, Total=420552 [2023-12-20 02:42:41,726 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 15909 mSDsluCounter, 12911 mSDsCounter, 0 mSdLazyCounter, 12670 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15909 SdHoareTripleChecker+Valid, 13508 SdHoareTripleChecker+Invalid, 13004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 12670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:41,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15909 Valid, 13508 Invalid, 13004 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [334 Valid, 12670 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-12-20 02:42:41,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553156 states. [2023-12-20 02:42:44,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553156 to 124294. [2023-12-20 02:42:44,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124294 states, 124293 states have (on average 1.1905819314040211) internal successors, (147981), 124293 states have internal predecessors, (147981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124294 states to 124294 states and 147981 transitions. [2023-12-20 02:42:44,906 INFO L78 Accepts]: Start accepts. Automaton has 124294 states and 147981 transitions. Word has length 105 [2023-12-20 02:42:44,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:44,907 INFO L495 AbstractCegarLoop]: Abstraction has 124294 states and 147981 transitions. [2023-12-20 02:42:44,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.0625) internal successors, (290), 32 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:44,907 INFO L276 IsEmpty]: Start isEmpty. Operand 124294 states and 147981 transitions. [2023-12-20 02:42:44,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:42:44,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:44,915 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:42:44,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-20 02:42:45,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:42:45,117 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:42:45,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:45,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1143427785, now seen corresponding path program 1 times [2023-12-20 02:42:45,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:45,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903144939] [2023-12-20 02:42:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:45,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:42:45,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:45,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903144939] [2023-12-20 02:42:45,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903144939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:45,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:45,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 02:42:45,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445026696] [2023-12-20 02:42:45,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:45,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 02:42:45,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:45,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 02:42:45,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 02:42:45,327 INFO L87 Difference]: Start difference. First operand 124294 states and 147981 transitions. Second operand has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:46,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:46,253 INFO L93 Difference]: Finished difference Result 173907 states and 207238 transitions. [2023-12-20 02:42:46,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-20 02:42:46,254 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:42:46,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:46,422 INFO L225 Difference]: With dead ends: 173907 [2023-12-20 02:42:46,422 INFO L226 Difference]: Without dead ends: 155891 [2023-12-20 02:42:46,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:42:46,465 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 1165 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:46,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 1004 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:42:46,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155891 states. [2023-12-20 02:42:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155891 to 124249. [2023-12-20 02:42:47,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124249 states, 124248 states have (on average 1.1906107140557594) internal successors, (147931), 124248 states have internal predecessors, (147931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124249 states to 124249 states and 147931 transitions. [2023-12-20 02:42:48,235 INFO L78 Accepts]: Start accepts. Automaton has 124249 states and 147931 transitions. Word has length 105 [2023-12-20 02:42:48,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:48,235 INFO L495 AbstractCegarLoop]: Abstraction has 124249 states and 147931 transitions. [2023-12-20 02:42:48,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.5) internal successors, (100), 7 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:48,235 INFO L276 IsEmpty]: Start isEmpty. Operand 124249 states and 147931 transitions. [2023-12-20 02:42:48,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:42:48,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:48,242 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:42:48,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2023-12-20 02:42:48,243 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:42:48,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:48,243 INFO L85 PathProgramCache]: Analyzing trace with hash -362061853, now seen corresponding path program 1 times [2023-12-20 02:42:48,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:48,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131983098] [2023-12-20 02:42:48,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:48,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-20 02:42:48,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131983098] [2023-12-20 02:42:48,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131983098] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:48,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:42:48,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:42:48,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666765382] [2023-12-20 02:42:48,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:48,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:42:48,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:48,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:42:48,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:42:48,293 INFO L87 Difference]: Start difference. First operand 124249 states and 147931 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:49,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:49,206 INFO L93 Difference]: Finished difference Result 243277 states and 289932 transitions. [2023-12-20 02:42:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:42:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:42:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:49,454 INFO L225 Difference]: With dead ends: 243277 [2023-12-20 02:42:49,454 INFO L226 Difference]: Without dead ends: 196650 [2023-12-20 02:42:49,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:42:49,503 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 464 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:49,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 668 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:42:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196650 states. [2023-12-20 02:42:50,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196650 to 123681. [2023-12-20 02:42:50,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123681 states, 123680 states have (on average 1.190612871927555) internal successors, (147255), 123680 states have internal predecessors, (147255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123681 states to 123681 states and 147255 transitions. [2023-12-20 02:42:51,314 INFO L78 Accepts]: Start accepts. Automaton has 123681 states and 147255 transitions. Word has length 105 [2023-12-20 02:42:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:51,314 INFO L495 AbstractCegarLoop]: Abstraction has 123681 states and 147255 transitions. [2023-12-20 02:42:51,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 123681 states and 147255 transitions. [2023-12-20 02:42:51,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:42:51,321 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:51,321 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:42:51,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2023-12-20 02:42:51,321 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:42:51,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:51,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1297159560, now seen corresponding path program 1 times [2023-12-20 02:42:51,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:51,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329569207] [2023-12-20 02:42:51,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:51,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:42:51,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:51,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329569207] [2023-12-20 02:42:51,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329569207] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:42:51,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299053168] [2023-12-20 02:42:51,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:42:51,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:42:51,655 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:42:51,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-20 02:42:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:51,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:42:51,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:42:52,213 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:42:52,213 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:42:52,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299053168] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:52,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:42:52,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 20 [2023-12-20 02:42:52,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735313270] [2023-12-20 02:42:52,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:52,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-20 02:42:52,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:52,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-20 02:42:52,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2023-12-20 02:42:52,215 INFO L87 Difference]: Start difference. First operand 123681 states and 147255 transitions. Second operand has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:53,097 INFO L93 Difference]: Finished difference Result 150132 states and 178763 transitions. [2023-12-20 02:42:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:42:53,098 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:42:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:53,226 INFO L225 Difference]: With dead ends: 150132 [2023-12-20 02:42:53,226 INFO L226 Difference]: Without dead ends: 112168 [2023-12-20 02:42:53,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2023-12-20 02:42:53,270 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 897 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:53,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 3217 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-20 02:42:53,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112168 states. [2023-12-20 02:42:54,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112168 to 109055. [2023-12-20 02:42:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109055 states, 109054 states have (on average 1.1879435875804647) internal successors, (129550), 109054 states have internal predecessors, (129550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109055 states to 109055 states and 129550 transitions. [2023-12-20 02:42:54,531 INFO L78 Accepts]: Start accepts. Automaton has 109055 states and 129550 transitions. Word has length 105 [2023-12-20 02:42:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:42:54,531 INFO L495 AbstractCegarLoop]: Abstraction has 109055 states and 129550 transitions. [2023-12-20 02:42:54,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.5) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 109055 states and 129550 transitions. [2023-12-20 02:42:54,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:42:54,538 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:42:54,539 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:42:54,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-20 02:42:54,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2023-12-20 02:42:54,744 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:42:54,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:42:54,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1874632301, now seen corresponding path program 1 times [2023-12-20 02:42:54,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:42:54,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207550063] [2023-12-20 02:42:54,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:42:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:42:55,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:42:55,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207550063] [2023-12-20 02:42:55,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207550063] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:42:55,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861802495] [2023-12-20 02:42:55,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:42:55,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:42:55,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:42:55,634 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:42:55,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-20 02:42:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:42:55,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-20 02:42:55,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:42:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:42:56,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:42:56,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861802495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:42:56,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:42:56,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [15] total 27 [2023-12-20 02:42:56,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840534474] [2023-12-20 02:42:56,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:42:56,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:42:56,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:42:56,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:42:56,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:42:56,811 INFO L87 Difference]: Start difference. First operand 109055 states and 129550 transitions. Second operand has 14 states, 14 states have (on average 7.5) internal successors, (105), 13 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:42:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:42:58,976 INFO L93 Difference]: Finished difference Result 135732 states and 160918 transitions. [2023-12-20 02:42:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-20 02:42:58,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 13 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:42:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:42:59,110 INFO L225 Difference]: With dead ends: 135732 [2023-12-20 02:42:59,110 INFO L226 Difference]: Without dead ends: 118809 [2023-12-20 02:42:59,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=514, Invalid=2348, Unknown=0, NotChecked=0, Total=2862 [2023-12-20 02:42:59,147 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 2334 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 1924 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:42:59,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 1924 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1270 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:42:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118809 states. [2023-12-20 02:43:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118809 to 104398. [2023-12-20 02:43:00,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104398 states, 104397 states have (on average 1.1866624519861682) internal successors, (123884), 104397 states have internal predecessors, (123884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104398 states to 104398 states and 123884 transitions. [2023-12-20 02:43:00,345 INFO L78 Accepts]: Start accepts. Automaton has 104398 states and 123884 transitions. Word has length 105 [2023-12-20 02:43:00,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:00,346 INFO L495 AbstractCegarLoop]: Abstraction has 104398 states and 123884 transitions. [2023-12-20 02:43:00,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.5) internal successors, (105), 13 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 104398 states and 123884 transitions. [2023-12-20 02:43:00,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:43:00,352 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:00,352 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:43:00,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-20 02:43:00,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2023-12-20 02:43:00,558 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:00,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:00,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1056983851, now seen corresponding path program 1 times [2023-12-20 02:43:00,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:00,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431597379] [2023-12-20 02:43:00,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:00,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:01,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:01,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431597379] [2023-12-20 02:43:01,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431597379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:01,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:01,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-12-20 02:43:01,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293580702] [2023-12-20 02:43:01,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:01,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-20 02:43:01,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:01,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-20 02:43:01,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-12-20 02:43:01,107 INFO L87 Difference]: Start difference. First operand 104398 states and 123884 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:01,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:01,958 INFO L93 Difference]: Finished difference Result 124792 states and 148861 transitions. [2023-12-20 02:43:01,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-20 02:43:01,958 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:43:01,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:02,101 INFO L225 Difference]: With dead ends: 124792 [2023-12-20 02:43:02,101 INFO L226 Difference]: Without dead ends: 112781 [2023-12-20 02:43:02,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:43:02,130 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 1511 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 4664 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:02,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 4664 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:43:02,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112781 states. [2023-12-20 02:43:03,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112781 to 100930. [2023-12-20 02:43:03,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100930 states, 100929 states have (on average 1.1859822251285557) internal successors, (119700), 100929 states have internal predecessors, (119700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100930 states to 100930 states and 119700 transitions. [2023-12-20 02:43:03,278 INFO L78 Accepts]: Start accepts. Automaton has 100930 states and 119700 transitions. Word has length 105 [2023-12-20 02:43:03,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:03,278 INFO L495 AbstractCegarLoop]: Abstraction has 100930 states and 119700 transitions. [2023-12-20 02:43:03,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 14 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:03,278 INFO L276 IsEmpty]: Start isEmpty. Operand 100930 states and 119700 transitions. [2023-12-20 02:43:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:43:03,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:03,285 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:43:03,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2023-12-20 02:43:03,285 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:03,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:03,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1088297527, now seen corresponding path program 1 times [2023-12-20 02:43:03,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:03,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128156220] [2023-12-20 02:43:03,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:03,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:03,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:03,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128156220] [2023-12-20 02:43:03,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128156220] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:03,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:03,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-20 02:43:03,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444790982] [2023-12-20 02:43:03,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:03,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-20 02:43:03,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:03,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-20 02:43:03,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2023-12-20 02:43:03,600 INFO L87 Difference]: Start difference. First operand 100930 states and 119700 transitions. Second operand has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:06,243 INFO L93 Difference]: Finished difference Result 209056 states and 248256 transitions. [2023-12-20 02:43:06,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-12-20 02:43:06,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:43:06,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:06,450 INFO L225 Difference]: With dead ends: 209056 [2023-12-20 02:43:06,450 INFO L226 Difference]: Without dead ends: 194125 [2023-12-20 02:43:06,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=558, Invalid=2094, Unknown=0, NotChecked=0, Total=2652 [2023-12-20 02:43:06,495 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2254 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 2452 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:06,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 3202 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2452 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:43:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194125 states. [2023-12-20 02:43:07,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194125 to 111392. [2023-12-20 02:43:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111392 states, 111391 states have (on average 1.186451329101992) internal successors, (132160), 111391 states have internal predecessors, (132160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111392 states to 111392 states and 132160 transitions. [2023-12-20 02:43:08,208 INFO L78 Accepts]: Start accepts. Automaton has 111392 states and 132160 transitions. Word has length 105 [2023-12-20 02:43:08,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:08,208 INFO L495 AbstractCegarLoop]: Abstraction has 111392 states and 132160 transitions. [2023-12-20 02:43:08,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.076923076923077) internal successors, (105), 12 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:08,209 INFO L276 IsEmpty]: Start isEmpty. Operand 111392 states and 132160 transitions. [2023-12-20 02:43:08,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:43:08,214 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:08,214 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:08,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2023-12-20 02:43:08,215 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:08,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1825756906, now seen corresponding path program 1 times [2023-12-20 02:43:08,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:08,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428680411] [2023-12-20 02:43:08,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:08,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:08,258 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:08,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:08,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428680411] [2023-12-20 02:43:08,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428680411] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:08,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:08,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 02:43:08,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748651996] [2023-12-20 02:43:08,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:08,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 02:43:08,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:08,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 02:43:08,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-20 02:43:08,260 INFO L87 Difference]: Start difference. First operand 111392 states and 132160 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:08,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:08,559 INFO L93 Difference]: Finished difference Result 162677 states and 192820 transitions. [2023-12-20 02:43:08,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 02:43:08,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:43:08,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:08,624 INFO L225 Difference]: With dead ends: 162677 [2023-12-20 02:43:08,625 INFO L226 Difference]: Without dead ends: 56013 [2023-12-20 02:43:08,674 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 [2023-12-20 02:43:08,675 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 109 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:08,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 416 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 02:43:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56013 states. [2023-12-20 02:43:09,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56013 to 55047. [2023-12-20 02:43:09,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55047 states, 55046 states have (on average 1.1604839588707627) internal successors, (63880), 55046 states have internal predecessors, (63880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:09,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55047 states to 55047 states and 63880 transitions. [2023-12-20 02:43:09,666 INFO L78 Accepts]: Start accepts. Automaton has 55047 states and 63880 transitions. Word has length 105 [2023-12-20 02:43:09,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:09,666 INFO L495 AbstractCegarLoop]: Abstraction has 55047 states and 63880 transitions. [2023-12-20 02:43:09,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:09,666 INFO L276 IsEmpty]: Start isEmpty. Operand 55047 states and 63880 transitions. [2023-12-20 02:43:09,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-20 02:43:09,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:09,670 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:43:09,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2023-12-20 02:43:09,670 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:09,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:09,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1055558029, now seen corresponding path program 1 times [2023-12-20 02:43:09,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:09,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774777092] [2023-12-20 02:43:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:09,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:10,487 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:10,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:10,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774777092] [2023-12-20 02:43:10,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774777092] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:10,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105501552] [2023-12-20 02:43:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:10,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:10,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:10,488 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:43:10,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-20 02:43:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:10,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 02:43:10,666 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:11,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:43:11,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:43:11,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105501552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:11,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:43:11,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [19] total 28 [2023-12-20 02:43:11,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132929505] [2023-12-20 02:43:11,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:11,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:43:11,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:11,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:43:11,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2023-12-20 02:43:11,308 INFO L87 Difference]: Start difference. First operand 55047 states and 63880 transitions. Second operand has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:11,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:11,986 INFO L93 Difference]: Finished difference Result 72130 states and 83744 transitions. [2023-12-20 02:43:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-20 02:43:11,986 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2023-12-20 02:43:11,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:12,048 INFO L225 Difference]: With dead ends: 72130 [2023-12-20 02:43:12,048 INFO L226 Difference]: Without dead ends: 67531 [2023-12-20 02:43:12,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=160, Invalid=1172, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:43:12,056 INFO L413 NwaCegarLoop]: 463 mSDtfsCounter, 1347 mSDsluCounter, 2220 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1347 SdHoareTripleChecker+Valid, 2683 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:12,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1347 Valid, 2683 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-20 02:43:12,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67531 states. [2023-12-20 02:43:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67531 to 54791. [2023-12-20 02:43:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54791 states, 54790 states have (on average 1.16070450812192) internal successors, (63595), 54790 states have internal predecessors, (63595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:12,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54791 states to 54791 states and 63595 transitions. [2023-12-20 02:43:12,642 INFO L78 Accepts]: Start accepts. Automaton has 54791 states and 63595 transitions. Word has length 105 [2023-12-20 02:43:12,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:12,643 INFO L495 AbstractCegarLoop]: Abstraction has 54791 states and 63595 transitions. [2023-12-20 02:43:12,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.090909090909092) internal successors, (100), 10 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:12,643 INFO L276 IsEmpty]: Start isEmpty. Operand 54791 states and 63595 transitions. [2023-12-20 02:43:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:43:12,647 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:12,647 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:12,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-20 02:43:12,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:12,853 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:12,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:12,855 INFO L85 PathProgramCache]: Analyzing trace with hash -523671444, now seen corresponding path program 1 times [2023-12-20 02:43:12,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:12,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192604410] [2023-12-20 02:43:12,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:12,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:13,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:13,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192604410] [2023-12-20 02:43:13,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192604410] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:13,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:13,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-20 02:43:13,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791561682] [2023-12-20 02:43:13,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:13,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-20 02:43:13,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:13,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-20 02:43:13,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-12-20 02:43:13,116 INFO L87 Difference]: Start difference. First operand 54791 states and 63595 transitions. Second operand has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:14,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:14,200 INFO L93 Difference]: Finished difference Result 74813 states and 87405 transitions. [2023-12-20 02:43:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 02:43:14,201 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:43:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:14,270 INFO L225 Difference]: With dead ends: 74813 [2023-12-20 02:43:14,271 INFO L226 Difference]: Without dead ends: 73121 [2023-12-20 02:43:14,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2023-12-20 02:43:14,289 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 1056 mSDsluCounter, 1545 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:14,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 1858 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:43:14,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73121 states. [2023-12-20 02:43:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73121 to 54799. [2023-12-20 02:43:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54799 states, 54798 states have (on average 1.160644549071134) internal successors, (63601), 54798 states have internal predecessors, (63601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54799 states to 54799 states and 63601 transitions. [2023-12-20 02:43:14,896 INFO L78 Accepts]: Start accepts. Automaton has 54799 states and 63601 transitions. Word has length 106 [2023-12-20 02:43:14,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:14,896 INFO L495 AbstractCegarLoop]: Abstraction has 54799 states and 63601 transitions. [2023-12-20 02:43:14,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:14,896 INFO L276 IsEmpty]: Start isEmpty. Operand 54799 states and 63601 transitions. [2023-12-20 02:43:14,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:43:14,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:14,901 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:14,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2023-12-20 02:43:14,901 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:14,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:14,901 INFO L85 PathProgramCache]: Analyzing trace with hash 143691108, now seen corresponding path program 1 times [2023-12-20 02:43:14,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:14,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977422542] [2023-12-20 02:43:14,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:14,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:14,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:15,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977422542] [2023-12-20 02:43:15,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977422542] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:15,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487896914] [2023-12-20 02:43:15,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:15,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:15,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:15,163 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:43:15,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-20 02:43:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:15,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-20 02:43:15,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:15,922 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:16,423 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:16,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487896914] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:16,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:16,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2023-12-20 02:43:16,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730367615] [2023-12-20 02:43:16,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:16,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:43:16,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:16,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:43:16,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=788, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:43:16,425 INFO L87 Difference]: Start difference. First operand 54799 states and 63601 transitions. Second operand has 30 states, 30 states have (on average 9.766666666666667) internal successors, (293), 30 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:40,333 INFO L93 Difference]: Finished difference Result 151455 states and 175668 transitions. [2023-12-20 02:43:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 338 states. [2023-12-20 02:43:40,334 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.766666666666667) internal successors, (293), 30 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:43:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:40,470 INFO L225 Difference]: With dead ends: 151455 [2023-12-20 02:43:40,470 INFO L226 Difference]: Without dead ends: 150621 [2023-12-20 02:43:40,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57042 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=17354, Invalid=116236, Unknown=0, NotChecked=0, Total=133590 [2023-12-20 02:43:40,487 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 9393 mSDsluCounter, 6968 mSDsCounter, 0 mSdLazyCounter, 6732 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9393 SdHoareTripleChecker+Valid, 7343 SdHoareTripleChecker+Invalid, 6957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 6732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:40,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9393 Valid, 7343 Invalid, 6957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 6732 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-20 02:43:40,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150621 states. [2023-12-20 02:43:41,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150621 to 54731. [2023-12-20 02:43:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54731 states, 54730 states have (on average 1.1604421706559473) internal successors, (63511), 54730 states have internal predecessors, (63511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54731 states to 54731 states and 63511 transitions. [2023-12-20 02:43:41,307 INFO L78 Accepts]: Start accepts. Automaton has 54731 states and 63511 transitions. Word has length 106 [2023-12-20 02:43:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:41,307 INFO L495 AbstractCegarLoop]: Abstraction has 54731 states and 63511 transitions. [2023-12-20 02:43:41,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.766666666666667) internal successors, (293), 30 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 54731 states and 63511 transitions. [2023-12-20 02:43:41,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-20 02:43:41,312 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:41,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:41,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-12-20 02:43:41,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable64 [2023-12-20 02:43:41,516 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:41,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:41,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1128705717, now seen corresponding path program 1 times [2023-12-20 02:43:41,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:41,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767114249] [2023-12-20 02:43:41,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:41,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:42,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:42,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767114249] [2023-12-20 02:43:42,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767114249] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:42,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301682169] [2023-12-20 02:43:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:42,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:42,234 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:43:42,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-20 02:43:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:42,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-20 02:43:42,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:42,928 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:42,929 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:43:43,618 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:43,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301682169] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:43:43,618 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:43:43,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 36 [2023-12-20 02:43:43,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847806262] [2023-12-20 02:43:43,618 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:43:43,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-20 02:43:43,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:43,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-20 02:43:43,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1162, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 02:43:43,619 INFO L87 Difference]: Start difference. First operand 54731 states and 63511 transitions. Second operand has 36 states, 36 states have (on average 8.11111111111111) internal successors, (292), 36 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:52,987 INFO L93 Difference]: Finished difference Result 115514 states and 133633 transitions. [2023-12-20 02:43:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2023-12-20 02:43:52,987 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 8.11111111111111) internal successors, (292), 36 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-12-20 02:43:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:53,198 INFO L225 Difference]: With dead ends: 115514 [2023-12-20 02:43:53,198 INFO L226 Difference]: Without dead ends: 99479 [2023-12-20 02:43:53,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10771 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=4839, Invalid=29201, Unknown=0, NotChecked=0, Total=34040 [2023-12-20 02:43:53,219 INFO L413 NwaCegarLoop]: 1030 mSDtfsCounter, 5174 mSDsluCounter, 22394 mSDsCounter, 0 mSdLazyCounter, 7238 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5174 SdHoareTripleChecker+Valid, 23424 SdHoareTripleChecker+Invalid, 7273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 7238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:53,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5174 Valid, 23424 Invalid, 7273 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [35 Valid, 7238 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-20 02:43:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99479 states. [2023-12-20 02:43:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99479 to 55724. [2023-12-20 02:43:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55724 states, 55723 states have (on average 1.1586597993647147) internal successors, (64564), 55723 states have internal predecessors, (64564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55724 states to 55724 states and 64564 transitions. [2023-12-20 02:43:53,892 INFO L78 Accepts]: Start accepts. Automaton has 55724 states and 64564 transitions. Word has length 106 [2023-12-20 02:43:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:53,892 INFO L495 AbstractCegarLoop]: Abstraction has 55724 states and 64564 transitions. [2023-12-20 02:43:53,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 8.11111111111111) internal successors, (292), 36 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:53,893 INFO L276 IsEmpty]: Start isEmpty. Operand 55724 states and 64564 transitions. [2023-12-20 02:43:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-20 02:43:53,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:53,897 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:43:53,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-20 02:43:54,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:54,103 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:54,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:54,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1446390083, now seen corresponding path program 1 times [2023-12-20 02:43:54,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:54,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441329838] [2023-12-20 02:43:54,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:54,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:54,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:54,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:54,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:54,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441329838] [2023-12-20 02:43:54,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441329838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:54,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:43:54,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-12-20 02:43:54,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982293097] [2023-12-20 02:43:54,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:54,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:43:54,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:54,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:43:54,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:43:54,893 INFO L87 Difference]: Start difference. First operand 55724 states and 64564 transitions. Second operand has 16 states, 16 states have (on average 6.6875) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:56,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:43:56,918 INFO L93 Difference]: Finished difference Result 88297 states and 102785 transitions. [2023-12-20 02:43:56,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-12-20 02:43:56,919 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2023-12-20 02:43:56,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:43:57,009 INFO L225 Difference]: With dead ends: 88297 [2023-12-20 02:43:57,009 INFO L226 Difference]: Without dead ends: 83627 [2023-12-20 02:43:57,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=461, Invalid=1609, Unknown=0, NotChecked=0, Total=2070 [2023-12-20 02:43:57,035 INFO L413 NwaCegarLoop]: 547 mSDtfsCounter, 1703 mSDsluCounter, 4879 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 5426 SdHoareTripleChecker+Invalid, 1233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:43:57,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 5426 Invalid, 1233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:43:57,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83627 states. [2023-12-20 02:43:57,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83627 to 55618. [2023-12-20 02:43:57,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55618 states, 55617 states have (on average 1.158710466224356) internal successors, (64444), 55617 states have internal predecessors, (64444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:57,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55618 states to 55618 states and 64444 transitions. [2023-12-20 02:43:57,682 INFO L78 Accepts]: Start accepts. Automaton has 55618 states and 64444 transitions. Word has length 107 [2023-12-20 02:43:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:43:57,682 INFO L495 AbstractCegarLoop]: Abstraction has 55618 states and 64444 transitions. [2023-12-20 02:43:57,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:43:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 55618 states and 64444 transitions. [2023-12-20 02:43:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:43:57,687 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:43:57,687 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:43:57,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2023-12-20 02:43:57,687 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:43:57,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:43:57,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1463312055, now seen corresponding path program 1 times [2023-12-20 02:43:57,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:43:57,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405779975] [2023-12-20 02:43:57,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:57,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:43:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:58,070 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:43:58,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:43:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405779975] [2023-12-20 02:43:58,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405779975] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:43:58,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302215422] [2023-12-20 02:43:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:43:58,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:43:58,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:43:58,072 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:43:58,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-20 02:43:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:43:58,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 44 conjunts are in the unsatisfiable core [2023-12-20 02:43:58,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:43:59,985 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:43:59,985 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:43:59,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302215422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:43:59,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:43:59,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [10] total 27 [2023-12-20 02:43:59,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129371981] [2023-12-20 02:43:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:43:59,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:43:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:43:59,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:43:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:43:59,987 INFO L87 Difference]: Start difference. First operand 55618 states and 64444 transitions. Second operand has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 18 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:01,322 INFO L93 Difference]: Finished difference Result 60907 states and 70628 transitions. [2023-12-20 02:44:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:44:01,322 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 18 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-20 02:44:01,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:01,381 INFO L225 Difference]: With dead ends: 60907 [2023-12-20 02:44:01,381 INFO L226 Difference]: Without dead ends: 56878 [2023-12-20 02:44:01,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=184, Invalid=1076, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 02:44:01,397 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 516 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:01,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 2781 Invalid, 1248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:44:01,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56878 states. [2023-12-20 02:44:01,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56878 to 55240. [2023-12-20 02:44:01,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55240 states, 55239 states have (on average 1.1589094661380546) internal successors, (64017), 55239 states have internal predecessors, (64017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55240 states to 55240 states and 64017 transitions. [2023-12-20 02:44:01,924 INFO L78 Accepts]: Start accepts. Automaton has 55240 states and 64017 transitions. Word has length 108 [2023-12-20 02:44:01,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:01,925 INFO L495 AbstractCegarLoop]: Abstraction has 55240 states and 64017 transitions. [2023-12-20 02:44:01,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.421052631578948) internal successors, (103), 18 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:01,925 INFO L276 IsEmpty]: Start isEmpty. Operand 55240 states and 64017 transitions. [2023-12-20 02:44:01,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-20 02:44:01,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:01,930 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 02:44:01,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-20 02:44:02,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:02,136 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:02,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:02,137 INFO L85 PathProgramCache]: Analyzing trace with hash -602114821, now seen corresponding path program 1 times [2023-12-20 02:44:02,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:02,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802570082] [2023-12-20 02:44:02,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:02,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:02,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:02,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802570082] [2023-12-20 02:44:02,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802570082] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:02,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:44:02,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-12-20 02:44:02,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243861380] [2023-12-20 02:44:02,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:02,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-20 02:44:02,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:02,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-20 02:44:02,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-12-20 02:44:02,631 INFO L87 Difference]: Start difference. First operand 55240 states and 64017 transitions. Second operand has 14 states, 14 states have (on average 7.714285714285714) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:06,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:06,514 INFO L93 Difference]: Finished difference Result 81231 states and 94187 transitions. [2023-12-20 02:44:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-12-20 02:44:06,515 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.714285714285714) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-12-20 02:44:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:06,588 INFO L225 Difference]: With dead ends: 81231 [2023-12-20 02:44:06,588 INFO L226 Difference]: Without dead ends: 78765 [2023-12-20 02:44:06,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2802 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1493, Invalid=6517, Unknown=0, NotChecked=0, Total=8010 [2023-12-20 02:44:06,607 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 2246 mSDsluCounter, 2769 mSDsCounter, 0 mSdLazyCounter, 2663 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2246 SdHoareTripleChecker+Valid, 3201 SdHoareTripleChecker+Invalid, 2708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 2663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:06,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2246 Valid, 3201 Invalid, 2708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 2663 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 02:44:06,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78765 states. [2023-12-20 02:44:07,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78765 to 55600. [2023-12-20 02:44:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55600 states, 55599 states have (on average 1.1586899044946852) internal successors, (64422), 55599 states have internal predecessors, (64422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:07,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55600 states to 55600 states and 64422 transitions. [2023-12-20 02:44:07,280 INFO L78 Accepts]: Start accepts. Automaton has 55600 states and 64422 transitions. Word has length 108 [2023-12-20 02:44:07,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:07,280 INFO L495 AbstractCegarLoop]: Abstraction has 55600 states and 64422 transitions. [2023-12-20 02:44:07,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.714285714285714) internal successors, (108), 13 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 55600 states and 64422 transitions. [2023-12-20 02:44:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:44:07,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:07,285 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:07,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2023-12-20 02:44:07,285 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:07,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1019317624, now seen corresponding path program 1 times [2023-12-20 02:44:07,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:07,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170419391] [2023-12-20 02:44:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:07,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:44:07,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:07,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170419391] [2023-12-20 02:44:07,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170419391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:07,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:44:07,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-20 02:44:07,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142255133] [2023-12-20 02:44:07,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:07,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 02:44:07,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 02:44:07,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 02:44:07,321 INFO L87 Difference]: Start difference. First operand 55600 states and 64422 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:07,737 INFO L93 Difference]: Finished difference Result 167689 states and 194812 transitions. [2023-12-20 02:44:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-20 02:44:07,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2023-12-20 02:44:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:07,867 INFO L225 Difference]: With dead ends: 167689 [2023-12-20 02:44:07,867 INFO L226 Difference]: Without dead ends: 117025 [2023-12-20 02:44:07,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 02:44:07,915 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 438 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:07,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 550 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 02:44:07,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117025 states. [2023-12-20 02:44:08,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117025 to 59152. [2023-12-20 02:44:08,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59152 states, 59151 states have (on average 1.1581714594850467) internal successors, (68507), 59151 states have internal predecessors, (68507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:08,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59152 states to 59152 states and 68507 transitions. [2023-12-20 02:44:08,974 INFO L78 Accepts]: Start accepts. Automaton has 59152 states and 68507 transitions. Word has length 109 [2023-12-20 02:44:08,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:08,974 INFO L495 AbstractCegarLoop]: Abstraction has 59152 states and 68507 transitions. [2023-12-20 02:44:08,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:08,974 INFO L276 IsEmpty]: Start isEmpty. Operand 59152 states and 68507 transitions. [2023-12-20 02:44:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-20 02:44:08,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:08,979 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:08,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2023-12-20 02:44:08,979 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:08,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:08,979 INFO L85 PathProgramCache]: Analyzing trace with hash 673384493, now seen corresponding path program 1 times [2023-12-20 02:44:08,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:08,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569008337] [2023-12-20 02:44:08,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:09,224 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:09,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:09,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569008337] [2023-12-20 02:44:09,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569008337] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:09,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579055694] [2023-12-20 02:44:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:09,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:09,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:09,226 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:09,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-20 02:44:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:09,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-20 02:44:09,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:10,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:11,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:11,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579055694] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:11,463 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:11,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 29 [2023-12-20 02:44:11,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145437399] [2023-12-20 02:44:11,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:11,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-12-20 02:44:11,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:11,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-12-20 02:44:11,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-20 02:44:11,464 INFO L87 Difference]: Start difference. First operand 59152 states and 68507 transitions. Second operand has 30 states, 30 states have (on average 8.933333333333334) internal successors, (268), 29 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:26,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:26,973 INFO L93 Difference]: Finished difference Result 239258 states and 278439 transitions. [2023-12-20 02:44:26,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 265 states. [2023-12-20 02:44:26,973 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 8.933333333333334) internal successors, (268), 29 states have internal predecessors, (268), 0 states have call successors, (0), 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 109 [2023-12-20 02:44:26,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:27,249 INFO L225 Difference]: With dead ends: 239258 [2023-12-20 02:44:27,249 INFO L226 Difference]: Without dead ends: 217750 [2023-12-20 02:44:27,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 289 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34911 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=9998, Invalid=74392, Unknown=0, NotChecked=0, Total=84390 [2023-12-20 02:44:27,279 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 7919 mSDsluCounter, 12681 mSDsCounter, 0 mSdLazyCounter, 11641 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7919 SdHoareTripleChecker+Valid, 13430 SdHoareTripleChecker+Invalid, 11732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 11641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:27,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7919 Valid, 13430 Invalid, 11732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 11641 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-20 02:44:27,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217750 states. [2023-12-20 02:44:28,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217750 to 59098. [2023-12-20 02:44:28,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59098 states, 59097 states have (on average 1.1578760343164627) internal successors, (68427), 59097 states have internal predecessors, (68427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:28,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59098 states to 59098 states and 68427 transitions. [2023-12-20 02:44:28,493 INFO L78 Accepts]: Start accepts. Automaton has 59098 states and 68427 transitions. Word has length 109 [2023-12-20 02:44:28,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:28,493 INFO L495 AbstractCegarLoop]: Abstraction has 59098 states and 68427 transitions. [2023-12-20 02:44:28,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 8.933333333333334) internal successors, (268), 29 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:28,494 INFO L276 IsEmpty]: Start isEmpty. Operand 59098 states and 68427 transitions. [2023-12-20 02:44:28,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:44:28,498 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:28,498 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:28,504 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-20 02:44:28,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:28,704 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:28,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1360563979, now seen corresponding path program 1 times [2023-12-20 02:44:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798501385] [2023-12-20 02:44:28,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:29,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:29,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798501385] [2023-12-20 02:44:29,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798501385] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:29,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905734316] [2023-12-20 02:44:29,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:29,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:29,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:29,690 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:29,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-20 02:44:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:29,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-20 02:44:29,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:44:30,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:44:30,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905734316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:30,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:44:30,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [23] total 32 [2023-12-20 02:44:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244893940] [2023-12-20 02:44:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:30,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:44:30,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:30,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:44:30,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=975, Unknown=0, NotChecked=0, Total=1056 [2023-12-20 02:44:30,745 INFO L87 Difference]: Start difference. First operand 59098 states and 68427 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:31,503 INFO L93 Difference]: Finished difference Result 81951 states and 95183 transitions. [2023-12-20 02:44:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-20 02:44:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-20 02:44:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:31,588 INFO L225 Difference]: With dead ends: 81951 [2023-12-20 02:44:31,588 INFO L226 Difference]: Without dead ends: 78626 [2023-12-20 02:44:31,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=156, Invalid=1484, Unknown=0, NotChecked=0, Total=1640 [2023-12-20 02:44:31,611 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 1485 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 3285 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:31,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 3285 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-20 02:44:31,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78626 states. [2023-12-20 02:44:32,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78626 to 58916. [2023-12-20 02:44:32,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58916 states, 58915 states have (on average 1.1579224306203852) internal successors, (68219), 58915 states have internal predecessors, (68219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58916 states to 58916 states and 68219 transitions. [2023-12-20 02:44:32,283 INFO L78 Accepts]: Start accepts. Automaton has 58916 states and 68219 transitions. Word has length 110 [2023-12-20 02:44:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:32,283 INFO L495 AbstractCegarLoop]: Abstraction has 58916 states and 68219 transitions. [2023-12-20 02:44:32,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 10 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:32,284 INFO L276 IsEmpty]: Start isEmpty. Operand 58916 states and 68219 transitions. [2023-12-20 02:44:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-20 02:44:32,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:32,289 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:32,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-20 02:44:32,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:32,495 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:32,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:32,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1891087670, now seen corresponding path program 1 times [2023-12-20 02:44:32,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:32,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206428426] [2023-12-20 02:44:32,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:32,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:32,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:32,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:32,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:32,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206428426] [2023-12-20 02:44:32,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206428426] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:32,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869788728] [2023-12-20 02:44:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:32,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:32,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:32,972 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:32,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-20 02:44:33,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:33,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 45 conjunts are in the unsatisfiable core [2023-12-20 02:44:33,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:44:34,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:44:34,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869788728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:34,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:44:34,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [17] total 34 [2023-12-20 02:44:34,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933649638] [2023-12-20 02:44:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:34,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-12-20 02:44:34,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:34,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-12-20 02:44:34,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2023-12-20 02:44:34,625 INFO L87 Difference]: Start difference. First operand 58916 states and 68219 transitions. Second operand has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:35,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:35,900 INFO L93 Difference]: Finished difference Result 71498 states and 82791 transitions. [2023-12-20 02:44:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-20 02:44:35,901 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-12-20 02:44:35,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:35,975 INFO L225 Difference]: With dead ends: 71498 [2023-12-20 02:44:35,975 INFO L226 Difference]: Without dead ends: 68255 [2023-12-20 02:44:35,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=214, Invalid=1508, Unknown=0, NotChecked=0, Total=1722 [2023-12-20 02:44:35,982 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 1063 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:35,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 2603 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:44:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68255 states. [2023-12-20 02:44:36,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68255 to 58818. [2023-12-20 02:44:36,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58818 states, 58817 states have (on average 1.1579985378377) internal successors, (68110), 58817 states have internal predecessors, (68110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58818 states to 58818 states and 68110 transitions. [2023-12-20 02:44:36,680 INFO L78 Accepts]: Start accepts. Automaton has 58818 states and 68110 transitions. Word has length 110 [2023-12-20 02:44:36,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:36,680 INFO L495 AbstractCegarLoop]: Abstraction has 58818 states and 68110 transitions. [2023-12-20 02:44:36,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.526315789473684) internal successors, (105), 18 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:36,680 INFO L276 IsEmpty]: Start isEmpty. Operand 58818 states and 68110 transitions. [2023-12-20 02:44:36,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:44:36,688 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:36,688 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:36,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-20 02:44:36,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:36,895 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:36,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:36,895 INFO L85 PathProgramCache]: Analyzing trace with hash -453065767, now seen corresponding path program 1 times [2023-12-20 02:44:36,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:36,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269733115] [2023-12-20 02:44:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:36,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:37,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:37,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269733115] [2023-12-20 02:44:37,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269733115] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:37,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111376249] [2023-12-20 02:44:37,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:37,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:37,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:37,455 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:37,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-20 02:44:37,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:37,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-20 02:44:37,629 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:38,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:38,845 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:38,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111376249] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:38,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:38,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 11] total 39 [2023-12-20 02:44:38,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482075407] [2023-12-20 02:44:38,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:38,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-20 02:44:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:38,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-20 02:44:38,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1350, Unknown=0, NotChecked=0, Total=1482 [2023-12-20 02:44:38,847 INFO L87 Difference]: Start difference. First operand 58818 states and 68110 transitions. Second operand has 39 states, 39 states have (on average 7.666666666666667) internal successors, (299), 39 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:42,169 INFO L93 Difference]: Finished difference Result 76403 states and 88466 transitions. [2023-12-20 02:44:42,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-20 02:44:42,169 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 7.666666666666667) internal successors, (299), 39 states have internal predecessors, (299), 0 states have call successors, (0), 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 111 [2023-12-20 02:44:42,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:42,309 INFO L225 Difference]: With dead ends: 76403 [2023-12-20 02:44:42,309 INFO L226 Difference]: Without dead ends: 73997 [2023-12-20 02:44:42,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 933 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=818, Invalid=4294, Unknown=0, NotChecked=0, Total=5112 [2023-12-20 02:44:42,314 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 2777 mSDsluCounter, 8281 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2777 SdHoareTripleChecker+Valid, 8713 SdHoareTripleChecker+Invalid, 3579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:42,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2777 Valid, 8713 Invalid, 3579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-20 02:44:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73997 states. [2023-12-20 02:44:42,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73997 to 58775. [2023-12-20 02:44:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58775 states, 58774 states have (on average 1.1579269745125396) internal successors, (68056), 58774 states have internal predecessors, (68056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58775 states to 58775 states and 68056 transitions. [2023-12-20 02:44:42,830 INFO L78 Accepts]: Start accepts. Automaton has 58775 states and 68056 transitions. Word has length 111 [2023-12-20 02:44:42,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:42,830 INFO L495 AbstractCegarLoop]: Abstraction has 58775 states and 68056 transitions. [2023-12-20 02:44:42,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 7.666666666666667) internal successors, (299), 39 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:42,831 INFO L276 IsEmpty]: Start isEmpty. Operand 58775 states and 68056 transitions. [2023-12-20 02:44:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-20 02:44:42,835 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:42,835 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:42,840 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-12-20 02:44:43,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:43,036 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:43,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:43,037 INFO L85 PathProgramCache]: Analyzing trace with hash 855359433, now seen corresponding path program 1 times [2023-12-20 02:44:43,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:43,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510117571] [2023-12-20 02:44:43,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:43,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:43,698 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:43,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510117571] [2023-12-20 02:44:43,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510117571] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:43,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092282233] [2023-12-20 02:44:43,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:43,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:43,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:43,726 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:43,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-20 02:44:43,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:43,896 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-20 02:44:43,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:44:44,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:44:44,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092282233] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:44,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:44:44,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 23 [2023-12-20 02:44:44,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174914274] [2023-12-20 02:44:44,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:44,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-20 02:44:44,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:44,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-20 02:44:44,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2023-12-20 02:44:44,649 INFO L87 Difference]: Start difference. First operand 58775 states and 68056 transitions. Second operand has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:45,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:45,679 INFO L93 Difference]: Finished difference Result 104133 states and 120605 transitions. [2023-12-20 02:44:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-20 02:44:45,680 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2023-12-20 02:44:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:45,778 INFO L225 Difference]: With dead ends: 104133 [2023-12-20 02:44:45,778 INFO L226 Difference]: Without dead ends: 95413 [2023-12-20 02:44:45,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=182, Invalid=1078, Unknown=0, NotChecked=0, Total=1260 [2023-12-20 02:44:45,887 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 1836 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:45,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 3022 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-20 02:44:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95413 states. [2023-12-20 02:44:46,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95413 to 57315. [2023-12-20 02:44:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57315 states, 57314 states have (on average 1.1584080678368287) internal successors, (66393), 57314 states have internal predecessors, (66393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57315 states to 57315 states and 66393 transitions. [2023-12-20 02:44:46,623 INFO L78 Accepts]: Start accepts. Automaton has 57315 states and 66393 transitions. Word has length 111 [2023-12-20 02:44:46,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:46,623 INFO L495 AbstractCegarLoop]: Abstraction has 57315 states and 66393 transitions. [2023-12-20 02:44:46,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.636363636363637) internal successors, (106), 10 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:46,623 INFO L276 IsEmpty]: Start isEmpty. Operand 57315 states and 66393 transitions. [2023-12-20 02:44:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-12-20 02:44:46,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:46,627 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:46,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-20 02:44:46,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2023-12-20 02:44:46,832 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:46,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:46,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1392560786, now seen corresponding path program 1 times [2023-12-20 02:44:46,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:46,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891752287] [2023-12-20 02:44:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:47,185 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-20 02:44:47,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:47,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891752287] [2023-12-20 02:44:47,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891752287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:47,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:44:47,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-20 02:44:47,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401649778] [2023-12-20 02:44:47,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:47,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-20 02:44:47,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:47,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-20 02:44:47,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-12-20 02:44:47,186 INFO L87 Difference]: Start difference. First operand 57315 states and 66393 transitions. Second operand has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:48,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:48,262 INFO L93 Difference]: Finished difference Result 82535 states and 95628 transitions. [2023-12-20 02:44:48,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 02:44:48,262 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2023-12-20 02:44:48,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:48,342 INFO L225 Difference]: With dead ends: 82535 [2023-12-20 02:44:48,342 INFO L226 Difference]: Without dead ends: 74678 [2023-12-20 02:44:48,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2023-12-20 02:44:48,367 INFO L413 NwaCegarLoop]: 355 mSDtfsCounter, 1431 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1431 SdHoareTripleChecker+Valid, 3317 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:48,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1431 Valid, 3317 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:44:48,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74678 states. [2023-12-20 02:44:48,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74678 to 57315. [2023-12-20 02:44:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57315 states, 57314 states have (on average 1.158390620092822) internal successors, (66392), 57314 states have internal predecessors, (66392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57315 states to 57315 states and 66392 transitions. [2023-12-20 02:44:49,083 INFO L78 Accepts]: Start accepts. Automaton has 57315 states and 66392 transitions. Word has length 112 [2023-12-20 02:44:49,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:49,083 INFO L495 AbstractCegarLoop]: Abstraction has 57315 states and 66392 transitions. [2023-12-20 02:44:49,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.6875) internal successors, (107), 16 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:49,084 INFO L276 IsEmpty]: Start isEmpty. Operand 57315 states and 66392 transitions. [2023-12-20 02:44:49,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-20 02:44:49,087 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:49,088 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:49,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2023-12-20 02:44:49,088 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:49,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1402269399, now seen corresponding path program 1 times [2023-12-20 02:44:49,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:49,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952058152] [2023-12-20 02:44:49,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:49,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:49,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:49,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952058152] [2023-12-20 02:44:49,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952058152] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:49,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001899254] [2023-12-20 02:44:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:49,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:49,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:49,692 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:49,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-20 02:44:49,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:49,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-20 02:44:49,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:50,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:44:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001899254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:44:50,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:44:50,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [18] total 34 [2023-12-20 02:44:50,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721647719] [2023-12-20 02:44:50,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:44:50,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 02:44:50,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:50,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 02:44:50,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2023-12-20 02:44:50,657 INFO L87 Difference]: Start difference. First operand 57315 states and 66392 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:52,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:44:52,265 INFO L93 Difference]: Finished difference Result 86739 states and 100399 transitions. [2023-12-20 02:44:52,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-20 02:44:52,265 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2023-12-20 02:44:52,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:44:52,349 INFO L225 Difference]: With dead ends: 86739 [2023-12-20 02:44:52,349 INFO L226 Difference]: Without dead ends: 83239 [2023-12-20 02:44:52,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 516 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=351, Invalid=2511, Unknown=0, NotChecked=0, Total=2862 [2023-12-20 02:44:52,373 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 1512 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 1750 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 1768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 02:44:52,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 4865 Invalid, 1768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1750 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 02:44:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83239 states. [2023-12-20 02:44:52,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83239 to 57353. [2023-12-20 02:44:52,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57353 states, 57352 states have (on average 1.1582856744315804) internal successors, (66430), 57352 states have internal predecessors, (66430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57353 states to 57353 states and 66430 transitions. [2023-12-20 02:44:53,013 INFO L78 Accepts]: Start accepts. Automaton has 57353 states and 66430 transitions. Word has length 113 [2023-12-20 02:44:53,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:44:53,013 INFO L495 AbstractCegarLoop]: Abstraction has 57353 states and 66430 transitions. [2023-12-20 02:44:53,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 17 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:44:53,013 INFO L276 IsEmpty]: Start isEmpty. Operand 57353 states and 66430 transitions. [2023-12-20 02:44:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-20 02:44:53,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:44:53,018 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:44:53,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-12-20 02:44:53,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2023-12-20 02:44:53,223 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:44:53,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:44:53,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1399898778, now seen corresponding path program 1 times [2023-12-20 02:44:53,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:44:53,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026587594] [2023-12-20 02:44:53,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:53,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:44:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:54,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:44:54,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026587594] [2023-12-20 02:44:54,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026587594] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:44:54,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170518383] [2023-12-20 02:44:54,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:44:54,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:44:54,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:44:54,162 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:44:54,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-20 02:44:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:44:54,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-20 02:44:54,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:44:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:55,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:44:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:44:57,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170518383] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:44:57,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:44:57,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 16, 16] total 51 [2023-12-20 02:44:57,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413853958] [2023-12-20 02:44:57,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:44:57,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-20 02:44:57,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:44:57,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-20 02:44:57,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2383, Unknown=0, NotChecked=0, Total=2550 [2023-12-20 02:44:57,129 INFO L87 Difference]: Start difference. First operand 57353 states and 66430 transitions. Second operand has 51 states, 51 states have (on average 6.176470588235294) internal successors, (315), 51 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:10,008 INFO L93 Difference]: Finished difference Result 131121 states and 151102 transitions. [2023-12-20 02:45:10,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2023-12-20 02:45:10,009 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 6.176470588235294) internal successors, (315), 51 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2023-12-20 02:45:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:10,149 INFO L225 Difference]: With dead ends: 131121 [2023-12-20 02:45:10,149 INFO L226 Difference]: Without dead ends: 125809 [2023-12-20 02:45:10,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8309 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=3444, Invalid=25968, Unknown=0, NotChecked=0, Total=29412 [2023-12-20 02:45:10,185 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 4598 mSDsluCounter, 30030 mSDsCounter, 0 mSdLazyCounter, 10355 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 31086 SdHoareTripleChecker+Invalid, 10402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 10355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:10,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4598 Valid, 31086 Invalid, 10402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 10355 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-12-20 02:45:10,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125809 states. [2023-12-20 02:45:10,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125809 to 57319. [2023-12-20 02:45:10,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57319 states, 57318 states have (on average 1.1582399944171116) internal successors, (66388), 57318 states have internal predecessors, (66388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57319 states to 57319 states and 66388 transitions. [2023-12-20 02:45:11,041 INFO L78 Accepts]: Start accepts. Automaton has 57319 states and 66388 transitions. Word has length 113 [2023-12-20 02:45:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:11,041 INFO L495 AbstractCegarLoop]: Abstraction has 57319 states and 66388 transitions. [2023-12-20 02:45:11,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 6.176470588235294) internal successors, (315), 51 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:11,041 INFO L276 IsEmpty]: Start isEmpty. Operand 57319 states and 66388 transitions. [2023-12-20 02:45:11,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-20 02:45:11,046 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:11,046 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:45:11,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-12-20 02:45:11,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:11,251 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:45:11,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:11,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1329296814, now seen corresponding path program 1 times [2023-12-20 02:45:11,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:11,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598028924] [2023-12-20 02:45:11,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:11,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:11,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:11,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:11,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598028924] [2023-12-20 02:45:11,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598028924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:11,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 02:45:11,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-20 02:45:11,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775681219] [2023-12-20 02:45:11,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:11,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-20 02:45:11,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:11,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-20 02:45:11,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2023-12-20 02:45:11,634 INFO L87 Difference]: Start difference. First operand 57319 states and 66388 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:13,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:13,114 INFO L93 Difference]: Finished difference Result 92889 states and 107524 transitions. [2023-12-20 02:45:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-20 02:45:13,115 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2023-12-20 02:45:13,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:13,198 INFO L225 Difference]: With dead ends: 92889 [2023-12-20 02:45:13,198 INFO L226 Difference]: Without dead ends: 85161 [2023-12-20 02:45:13,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=1138, Unknown=0, NotChecked=0, Total=1332 [2023-12-20 02:45:13,233 INFO L413 NwaCegarLoop]: 449 mSDtfsCounter, 1161 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 5769 SdHoareTripleChecker+Invalid, 2099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:13,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 5769 Invalid, 2099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-20 02:45:13,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85161 states. [2023-12-20 02:45:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85161 to 54032. [2023-12-20 02:45:13,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54032 states, 54031 states have (on average 1.1579278562306823) internal successors, (62564), 54031 states have internal predecessors, (62564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54032 states to 54032 states and 62564 transitions. [2023-12-20 02:45:14,080 INFO L78 Accepts]: Start accepts. Automaton has 54032 states and 62564 transitions. Word has length 113 [2023-12-20 02:45:14,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:14,080 INFO L495 AbstractCegarLoop]: Abstraction has 54032 states and 62564 transitions. [2023-12-20 02:45:14,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:14,080 INFO L276 IsEmpty]: Start isEmpty. Operand 54032 states and 62564 transitions. [2023-12-20 02:45:14,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-20 02:45:14,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:14,084 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:45:14,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2023-12-20 02:45:14,085 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:45:14,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:14,085 INFO L85 PathProgramCache]: Analyzing trace with hash -931514765, now seen corresponding path program 1 times [2023-12-20 02:45:14,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:14,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902659792] [2023-12-20 02:45:14,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:14,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:14,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:14,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:14,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902659792] [2023-12-20 02:45:14,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902659792] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:45:14,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546810128] [2023-12-20 02:45:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:14,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:14,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:45:14,781 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:45:14,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-20 02:45:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:14,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-20 02:45:14,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:45:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:16,296 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 02:45:16,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546810128] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 02:45:16,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 02:45:16,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [20] total 39 [2023-12-20 02:45:16,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920684021] [2023-12-20 02:45:16,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 02:45:16,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-20 02:45:16,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-20 02:45:16,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1455, Unknown=0, NotChecked=0, Total=1560 [2023-12-20 02:45:16,298 INFO L87 Difference]: Start difference. First operand 54032 states and 62564 transitions. Second operand has 21 states, 21 states have (on average 5.428571428571429) internal successors, (114), 20 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:17,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:17,622 INFO L93 Difference]: Finished difference Result 65372 states and 75614 transitions. [2023-12-20 02:45:17,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-20 02:45:17,622 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.428571428571429) internal successors, (114), 20 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-20 02:45:17,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:17,679 INFO L225 Difference]: With dead ends: 65372 [2023-12-20 02:45:17,680 INFO L226 Difference]: Without dead ends: 61872 [2023-12-20 02:45:17,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=272, Invalid=3034, Unknown=0, NotChecked=0, Total=3306 [2023-12-20 02:45:17,698 INFO L413 NwaCegarLoop]: 384 mSDtfsCounter, 1187 mSDsluCounter, 4138 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:17,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 4522 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 02:45:17,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61872 states. [2023-12-20 02:45:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61872 to 53892. [2023-12-20 02:45:18,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53892 states, 53891 states have (on average 1.1581525672190163) internal successors, (62414), 53891 states have internal predecessors, (62414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53892 states to 53892 states and 62414 transitions. [2023-12-20 02:45:18,380 INFO L78 Accepts]: Start accepts. Automaton has 53892 states and 62414 transitions. Word has length 114 [2023-12-20 02:45:18,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:18,380 INFO L495 AbstractCegarLoop]: Abstraction has 53892 states and 62414 transitions. [2023-12-20 02:45:18,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.428571428571429) internal successors, (114), 20 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:18,381 INFO L276 IsEmpty]: Start isEmpty. Operand 53892 states and 62414 transitions. [2023-12-20 02:45:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-20 02:45:18,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:18,384 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:45:18,390 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-20 02:45:18,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:18,590 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:45:18,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:18,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1211818649, now seen corresponding path program 1 times [2023-12-20 02:45:18,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:18,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731465449] [2023-12-20 02:45:18,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:19,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:19,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731465449] [2023-12-20 02:45:19,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731465449] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:45:19,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274192244] [2023-12-20 02:45:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:19,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:19,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:45:19,818 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:45:19,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-12-20 02:45:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:19,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-20 02:45:19,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:45:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:21,106 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:45:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:22,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274192244] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:45:22,601 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:45:22,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 17, 17] total 56 [2023-12-20 02:45:22,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717206120] [2023-12-20 02:45:22,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:45:22,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-12-20 02:45:22,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:22,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-12-20 02:45:22,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2907, Unknown=0, NotChecked=0, Total=3080 [2023-12-20 02:45:22,602 INFO L87 Difference]: Start difference. First operand 53892 states and 62414 transitions. Second operand has 56 states, 56 states have (on average 5.714285714285714) internal successors, (320), 56 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:39,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 02:45:39,553 INFO L93 Difference]: Finished difference Result 104614 states and 120591 transitions. [2023-12-20 02:45:39,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-12-20 02:45:39,553 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.714285714285714) internal successors, (320), 56 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2023-12-20 02:45:39,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 02:45:39,659 INFO L225 Difference]: With dead ends: 104614 [2023-12-20 02:45:39,659 INFO L226 Difference]: Without dead ends: 99247 [2023-12-20 02:45:39,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7945 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=3208, Invalid=29012, Unknown=0, NotChecked=0, Total=32220 [2023-12-20 02:45:39,685 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 5555 mSDsluCounter, 40797 mSDsCounter, 0 mSdLazyCounter, 16018 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5555 SdHoareTripleChecker+Valid, 41969 SdHoareTripleChecker+Invalid, 16075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 16018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-12-20 02:45:39,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5555 Valid, 41969 Invalid, 16075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 16018 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2023-12-20 02:45:39,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99247 states. [2023-12-20 02:45:40,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99247 to 53968. [2023-12-20 02:45:40,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53968 states, 53967 states have (on average 1.1579669057016324) internal successors, (62492), 53967 states have internal predecessors, (62492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53968 states to 53968 states and 62492 transitions. [2023-12-20 02:45:40,625 INFO L78 Accepts]: Start accepts. Automaton has 53968 states and 62492 transitions. Word has length 114 [2023-12-20 02:45:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 02:45:40,625 INFO L495 AbstractCegarLoop]: Abstraction has 53968 states and 62492 transitions. [2023-12-20 02:45:40,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.714285714285714) internal successors, (320), 56 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 02:45:40,625 INFO L276 IsEmpty]: Start isEmpty. Operand 53968 states and 62492 transitions. [2023-12-20 02:45:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-20 02:45:40,629 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 02:45:40,629 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-20 02:45:40,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-12-20 02:45:40,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:40,835 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-12-20 02:45:40,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 02:45:40,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1561622711, now seen corresponding path program 1 times [2023-12-20 02:45:40,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 02:45:40,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619542452] [2023-12-20 02:45:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 02:45:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:41,551 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:41,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 02:45:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619542452] [2023-12-20 02:45:41,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619542452] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 02:45:41,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891359128] [2023-12-20 02:45:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 02:45:41,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 02:45:41,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 02:45:41,553 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 02:45:41,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-12-20 02:45:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 02:45:41,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-20 02:45:41,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 02:45:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:45,006 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 02:45:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 02:45:51,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891359128] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 02:45:51,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-20 02:45:51,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 26, 29] total 71 [2023-12-20 02:45:51,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262757790] [2023-12-20 02:45:51,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-20 02:45:51,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-12-20 02:45:51,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 02:45:51,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-12-20 02:45:51,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=4649, Unknown=0, NotChecked=0, Total=5112 [2023-12-20 02:45:51,420 INFO L87 Difference]: Start difference. First operand 53968 states and 62492 transitions. Second operand has 72 states, 72 states have (on average 4.5) internal successors, (324), 71 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)