./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label01.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 339d0df57823aa1bea53354295970ed66e6abc60d457d19cd7cfd0d27ddbb8a9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:48:33,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:48:33,607 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:48:33,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:48:33,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:48:33,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:48:33,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:48:33,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:48:33,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:48:33,661 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:48:33,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:48:33,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:48:33,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:48:33,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:48:33,667 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:48:33,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:48:33,667 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:48:33,667 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:48:33,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:48:33,668 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:48:33,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:48:33,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:48:33,669 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:48:33,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:48:33,670 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:48:33,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:48:33,670 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:48:33,670 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:48:33,671 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:48:33,671 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:48:33,671 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:48:33,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:48:33,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:33,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:48:33,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:48:33,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:48:33,672 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:48:33,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:48:33,672 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:48:33,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:48:33,673 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:48:33,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:48:33,674 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 339d0df57823aa1bea53354295970ed66e6abc60d457d19cd7cfd0d27ddbb8a9 [2024-11-16 03:48:33,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:48:33,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:48:33,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:48:33,891 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:48:33,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:48:33,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label01.c [2024-11-16 03:48:35,234 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:48:35,545 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:48:35,546 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label01.c [2024-11-16 03:48:35,575 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62426b03/4be7d58016b64d5b9d5606d323c4fb8d/FLAG5f73c0058 [2024-11-16 03:48:35,586 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e62426b03/4be7d58016b64d5b9d5606d323c4fb8d [2024-11-16 03:48:35,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:48:35,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:48:35,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:35,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:48:35,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:48:35,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:35" (1/1) ... [2024-11-16 03:48:35,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ece8774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:35, skipping insertion in model container [2024-11-16 03:48:35,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:35" (1/1) ... [2024-11-16 03:48:35,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:48:35,965 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label01.c[8261,8274] [2024-11-16 03:48:36,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:36,259 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:48:36,305 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label01.c[8261,8274] [2024-11-16 03:48:36,393 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:36,410 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:48:36,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36 WrapperNode [2024-11-16 03:48:36,410 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:36,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:36,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:48:36,412 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:48:36,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,597 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-16 03:48:36,601 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:36,602 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:48:36,602 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:48:36,602 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:48:36,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,644 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,746 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]. [2024-11-16 03:48:36,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,774 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:48:36,806 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:48:36,806 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:48:36,806 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:48:36,807 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (1/1) ... [2024-11-16 03:48:36,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:36,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:36,856 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) [2024-11-16 03:48:36,858 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 [2024-11-16 03:48:36,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:48:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:48:36,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:48:36,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:48:36,946 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:48:36,947 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:48:37,978 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 03:48:37,978 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:48:37,996 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:48:37,998 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:48:37,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:37 BoogieIcfgContainer [2024-11-16 03:48:37,998 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:48:38,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:48:38,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:48:38,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:48:38,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:48:35" (1/3) ... [2024-11-16 03:48:38,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291e1c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:38, skipping insertion in model container [2024-11-16 03:48:38,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:36" (2/3) ... [2024-11-16 03:48:38,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@291e1c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:38, skipping insertion in model container [2024-11-16 03:48:38,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:37" (3/3) ... [2024-11-16 03:48:38,006 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label01.c [2024-11-16 03:48:38,018 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:48:38,019 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:48:38,069 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:48:38,074 INFO L333 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, 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;@6bfd5e26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:48:38,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:48:38,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:38,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-16 03:48:38,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:38,084 INFO L215 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] [2024-11-16 03:48:38,085 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:38,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:38,089 INFO L85 PathProgramCache]: Analyzing trace with hash -314220692, now seen corresponding path program 1 times [2024-11-16 03:48:38,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:38,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225383465] [2024-11-16 03:48:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:38,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:38,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:38,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225383465] [2024-11-16 03:48:38,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225383465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:38,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:38,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156485757] [2024-11-16 03:48:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:38,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:38,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:38,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:38,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:38,468 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 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 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:39,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:39,294 INFO L93 Difference]: Finished difference Result 775 states and 1366 transitions. [2024-11-16 03:48:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:39,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-16 03:48:39,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:39,307 INFO L225 Difference]: With dead ends: 775 [2024-11-16 03:48:39,307 INFO L226 Difference]: Without dead ends: 425 [2024-11-16 03:48:39,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:39,313 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 183 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:39,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 168 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:48:39,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-16 03:48:39,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 415. [2024-11-16 03:48:39,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.5193236714975846) internal successors, (629), 414 states have internal predecessors, (629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:39,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 629 transitions. [2024-11-16 03:48:39,365 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 629 transitions. Word has length 59 [2024-11-16 03:48:39,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:39,365 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 629 transitions. [2024-11-16 03:48:39,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 629 transitions. [2024-11-16 03:48:39,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-16 03:48:39,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:39,369 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:39,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:48:39,369 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:39,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:39,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1574922516, now seen corresponding path program 1 times [2024-11-16 03:48:39,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:39,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858446581] [2024-11-16 03:48:39,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:39,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:39,539 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:39,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:39,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858446581] [2024-11-16 03:48:39,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858446581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:39,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:39,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:39,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206883575] [2024-11-16 03:48:39,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:39,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:39,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:39,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:39,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:39,542 INFO L87 Difference]: Start difference. First operand 415 states and 629 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:40,216 INFO L93 Difference]: Finished difference Result 1207 states and 1837 transitions. [2024-11-16 03:48:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:40,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-16 03:48:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:40,220 INFO L225 Difference]: With dead ends: 1207 [2024-11-16 03:48:40,220 INFO L226 Difference]: Without dead ends: 794 [2024-11-16 03:48:40,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:40,222 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 156 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:40,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 180 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:40,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-16 03:48:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2024-11-16 03:48:40,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3720050441361917) internal successors, (1088), 793 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:40,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1088 transitions. [2024-11-16 03:48:40,244 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1088 transitions. Word has length 126 [2024-11-16 03:48:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:40,244 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1088 transitions. [2024-11-16 03:48:40,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:40,244 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1088 transitions. [2024-11-16 03:48:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-16 03:48:40,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:40,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:40,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:48:40,247 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:40,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1346942174, now seen corresponding path program 1 times [2024-11-16 03:48:40,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:40,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469659267] [2024-11-16 03:48:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:40,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:40,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469659267] [2024-11-16 03:48:40,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469659267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:40,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:40,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:40,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603257754] [2024-11-16 03:48:40,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:40,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:40,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:40,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:40,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:40,485 INFO L87 Difference]: Start difference. First operand 794 states and 1088 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:41,188 INFO L93 Difference]: Finished difference Result 2331 states and 3197 transitions. [2024-11-16 03:48:41,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:41,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-16 03:48:41,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:41,196 INFO L225 Difference]: With dead ends: 2331 [2024-11-16 03:48:41,196 INFO L226 Difference]: Without dead ends: 1539 [2024-11-16 03:48:41,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:41,199 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 122 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:41,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 199 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:48:41,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2024-11-16 03:48:41,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1535. [2024-11-16 03:48:41,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1534 states have (on average 1.2164276401564538) internal successors, (1866), 1534 states have internal predecessors, (1866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:41,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 1866 transitions. [2024-11-16 03:48:41,261 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 1866 transitions. Word has length 130 [2024-11-16 03:48:41,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:41,261 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 1866 transitions. [2024-11-16 03:48:41,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:41,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 1866 transitions. [2024-11-16 03:48:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-16 03:48:41,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:41,272 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:41,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:48:41,272 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:41,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:41,273 INFO L85 PathProgramCache]: Analyzing trace with hash 137218695, now seen corresponding path program 1 times [2024-11-16 03:48:41,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:41,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426040527] [2024-11-16 03:48:41,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:41,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:41,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426040527] [2024-11-16 03:48:41,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426040527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:41,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466908] [2024-11-16 03:48:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:41,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:41,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:41,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:41,439 INFO L87 Difference]: Start difference. First operand 1535 states and 1866 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:42,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:42,038 INFO L93 Difference]: Finished difference Result 3635 states and 4493 transitions. [2024-11-16 03:48:42,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:42,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 187 [2024-11-16 03:48:42,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:42,044 INFO L225 Difference]: With dead ends: 3635 [2024-11-16 03:48:42,044 INFO L226 Difference]: Without dead ends: 2287 [2024-11-16 03:48:42,046 INFO L431 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 [2024-11-16 03:48:42,047 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 148 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:42,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 341 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:42,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2287 states. [2024-11-16 03:48:42,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2287 to 1908. [2024-11-16 03:48:42,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1908 states, 1907 states have (on average 1.214997378080755) internal successors, (2317), 1907 states have internal predecessors, (2317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1908 states to 1908 states and 2317 transitions. [2024-11-16 03:48:42,070 INFO L78 Accepts]: Start accepts. Automaton has 1908 states and 2317 transitions. Word has length 187 [2024-11-16 03:48:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:42,070 INFO L471 AbstractCegarLoop]: Abstraction has 1908 states and 2317 transitions. [2024-11-16 03:48:42,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1908 states and 2317 transitions. [2024-11-16 03:48:42,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-16 03:48:42,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:42,073 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:42,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:48:42,073 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:42,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash 956747641, now seen corresponding path program 1 times [2024-11-16 03:48:42,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:42,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509713864] [2024-11-16 03:48:42,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:42,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-16 03:48:42,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:42,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509713864] [2024-11-16 03:48:42,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509713864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:42,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:42,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:42,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121816674] [2024-11-16 03:48:42,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:42,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:42,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:42,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:42,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:42,419 INFO L87 Difference]: Start difference. First operand 1908 states and 2317 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:43,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:43,136 INFO L93 Difference]: Finished difference Result 4925 states and 6098 transitions. [2024-11-16 03:48:43,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 243 [2024-11-16 03:48:43,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:43,144 INFO L225 Difference]: With dead ends: 4925 [2024-11-16 03:48:43,144 INFO L226 Difference]: Without dead ends: 3019 [2024-11-16 03:48:43,146 INFO L431 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 [2024-11-16 03:48:43,148 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 155 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:43,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 343 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:48:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3019 states. [2024-11-16 03:48:43,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3019 to 3019. [2024-11-16 03:48:43,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 3018 states have (on average 1.1911862160371107) internal successors, (3595), 3018 states have internal predecessors, (3595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:43,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3595 transitions. [2024-11-16 03:48:43,189 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3595 transitions. Word has length 243 [2024-11-16 03:48:43,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:43,190 INFO L471 AbstractCegarLoop]: Abstraction has 3019 states and 3595 transitions. [2024-11-16 03:48:43,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:43,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3595 transitions. [2024-11-16 03:48:43,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-16 03:48:43,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:43,195 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:43,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:48:43,196 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:43,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash -633995249, now seen corresponding path program 1 times [2024-11-16 03:48:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:43,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351325779] [2024-11-16 03:48:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:43,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-16 03:48:43,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:43,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351325779] [2024-11-16 03:48:43,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351325779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:43,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:43,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103850416] [2024-11-16 03:48:43,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:43,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:43,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:43,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:43,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:43,441 INFO L87 Difference]: Start difference. First operand 3019 states and 3595 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:44,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:44,086 INFO L93 Difference]: Finished difference Result 6595 states and 7975 transitions. [2024-11-16 03:48:44,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:44,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 291 [2024-11-16 03:48:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:44,095 INFO L225 Difference]: With dead ends: 6595 [2024-11-16 03:48:44,096 INFO L226 Difference]: Without dead ends: 3578 [2024-11-16 03:48:44,099 INFO L431 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 [2024-11-16 03:48:44,100 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 140 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:44,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 388 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3578 states. [2024-11-16 03:48:44,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3578 to 3573. [2024-11-16 03:48:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3573 states, 3572 states have (on average 1.1895296752519597) internal successors, (4249), 3572 states have internal predecessors, (4249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:44,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3573 states to 3573 states and 4249 transitions. [2024-11-16 03:48:44,144 INFO L78 Accepts]: Start accepts. Automaton has 3573 states and 4249 transitions. Word has length 291 [2024-11-16 03:48:44,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:44,145 INFO L471 AbstractCegarLoop]: Abstraction has 3573 states and 4249 transitions. [2024-11-16 03:48:44,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3573 states and 4249 transitions. [2024-11-16 03:48:44,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-16 03:48:44,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:44,149 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:44,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:48:44,150 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:44,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:44,150 INFO L85 PathProgramCache]: Analyzing trace with hash -110867791, now seen corresponding path program 1 times [2024-11-16 03:48:44,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:44,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605819438] [2024-11-16 03:48:44,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:44,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 03:48:44,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:44,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605819438] [2024-11-16 03:48:44,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605819438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:44,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:44,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:44,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329782695] [2024-11-16 03:48:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:44,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:44,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:44,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:44,347 INFO L87 Difference]: Start difference. First operand 3573 states and 4249 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:44,933 INFO L93 Difference]: Finished difference Result 8622 states and 10431 transitions. [2024-11-16 03:48:44,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 324 [2024-11-16 03:48:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:44,947 INFO L225 Difference]: With dead ends: 8622 [2024-11-16 03:48:44,947 INFO L226 Difference]: Without dead ends: 5051 [2024-11-16 03:48:44,951 INFO L431 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 [2024-11-16 03:48:44,953 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 160 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:44,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 155 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5051 states. [2024-11-16 03:48:45,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 5049. [2024-11-16 03:48:45,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5049 states, 5048 states have (on average 1.1731378763866878) internal successors, (5922), 5048 states have internal predecessors, (5922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:45,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5049 states to 5049 states and 5922 transitions. [2024-11-16 03:48:45,016 INFO L78 Accepts]: Start accepts. Automaton has 5049 states and 5922 transitions. Word has length 324 [2024-11-16 03:48:45,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:45,016 INFO L471 AbstractCegarLoop]: Abstraction has 5049 states and 5922 transitions. [2024-11-16 03:48:45,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:45,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5049 states and 5922 transitions. [2024-11-16 03:48:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-16 03:48:45,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:45,023 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:45,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:48:45,024 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:45,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2079721138, now seen corresponding path program 1 times [2024-11-16 03:48:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:45,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613546873] [2024-11-16 03:48:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:45,220 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-16 03:48:45,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:45,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613546873] [2024-11-16 03:48:45,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613546873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:45,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:45,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:45,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659727412] [2024-11-16 03:48:45,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:45,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:45,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:45,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:45,223 INFO L87 Difference]: Start difference. First operand 5049 states and 5922 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:45,873 INFO L93 Difference]: Finished difference Result 10094 states and 11840 transitions. [2024-11-16 03:48:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:45,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 382 [2024-11-16 03:48:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:45,886 INFO L225 Difference]: With dead ends: 10094 [2024-11-16 03:48:45,886 INFO L226 Difference]: Without dead ends: 5047 [2024-11-16 03:48:45,891 INFO L431 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 [2024-11-16 03:48:45,894 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 178 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:45,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 309 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:45,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2024-11-16 03:48:46,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 5047. [2024-11-16 03:48:46,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5047 states, 5046 states have (on average 1.1428854538248117) internal successors, (5767), 5046 states have internal predecessors, (5767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5047 states to 5047 states and 5767 transitions. [2024-11-16 03:48:46,068 INFO L78 Accepts]: Start accepts. Automaton has 5047 states and 5767 transitions. Word has length 382 [2024-11-16 03:48:46,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:46,069 INFO L471 AbstractCegarLoop]: Abstraction has 5047 states and 5767 transitions. [2024-11-16 03:48:46,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5047 states and 5767 transitions. [2024-11-16 03:48:46,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-16 03:48:46,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:46,078 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:46,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:48:46,078 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:46,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:46,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1664190705, now seen corresponding path program 1 times [2024-11-16 03:48:46,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:46,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40284510] [2024-11-16 03:48:46,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:46,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:46,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-16 03:48:46,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:46,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40284510] [2024-11-16 03:48:46,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40284510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:46,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:46,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:46,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846885371] [2024-11-16 03:48:46,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:46,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:46,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:46,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:46,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:46,319 INFO L87 Difference]: Start difference. First operand 5047 states and 5767 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:46,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:46,917 INFO L93 Difference]: Finished difference Result 11387 states and 13044 transitions. [2024-11-16 03:48:46,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:46,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 387 [2024-11-16 03:48:46,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:46,931 INFO L225 Difference]: With dead ends: 11387 [2024-11-16 03:48:46,931 INFO L226 Difference]: Without dead ends: 6342 [2024-11-16 03:48:46,938 INFO L431 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 [2024-11-16 03:48:46,939 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 162 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:46,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 313 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:46,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6342 states. [2024-11-16 03:48:46,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6342 to 5417. [2024-11-16 03:48:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5417 states, 5416 states have (on average 1.1430945347119645) internal successors, (6191), 5416 states have internal predecessors, (6191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:47,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5417 states to 5417 states and 6191 transitions. [2024-11-16 03:48:47,010 INFO L78 Accepts]: Start accepts. Automaton has 5417 states and 6191 transitions. Word has length 387 [2024-11-16 03:48:47,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:47,011 INFO L471 AbstractCegarLoop]: Abstraction has 5417 states and 6191 transitions. [2024-11-16 03:48:47,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5417 states and 6191 transitions. [2024-11-16 03:48:47,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-16 03:48:47,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:47,025 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:47,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:48:47,026 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:47,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:47,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1296450937, now seen corresponding path program 1 times [2024-11-16 03:48:47,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:47,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700480554] [2024-11-16 03:48:47,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:47,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-16 03:48:47,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:47,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700480554] [2024-11-16 03:48:47,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700480554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:47,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:47,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:47,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453342314] [2024-11-16 03:48:47,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:47,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:47,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:47,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:47,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:47,314 INFO L87 Difference]: Start difference. First operand 5417 states and 6191 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:48,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:48,349 INFO L93 Difference]: Finished difference Result 16036 states and 18348 transitions. [2024-11-16 03:48:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:48:48,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 434 [2024-11-16 03:48:48,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:48,364 INFO L225 Difference]: With dead ends: 16036 [2024-11-16 03:48:48,364 INFO L226 Difference]: Without dead ends: 10621 [2024-11-16 03:48:48,369 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:48,369 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 221 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:48,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 96 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:48:48,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10621 states. [2024-11-16 03:48:48,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10621 to 10619. [2024-11-16 03:48:48,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10619 states, 10618 states have (on average 1.138067432661518) internal successors, (12084), 10618 states have internal predecessors, (12084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10619 states to 10619 states and 12084 transitions. [2024-11-16 03:48:48,485 INFO L78 Accepts]: Start accepts. Automaton has 10619 states and 12084 transitions. Word has length 434 [2024-11-16 03:48:48,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:48,485 INFO L471 AbstractCegarLoop]: Abstraction has 10619 states and 12084 transitions. [2024-11-16 03:48:48,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:48,486 INFO L276 IsEmpty]: Start isEmpty. Operand 10619 states and 12084 transitions. [2024-11-16 03:48:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-16 03:48:48,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:48,497 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:48,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:48:48,497 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:48,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:48,498 INFO L85 PathProgramCache]: Analyzing trace with hash 619465728, now seen corresponding path program 1 times [2024-11-16 03:48:48,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:48,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743218113] [2024-11-16 03:48:48,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:48,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2024-11-16 03:48:48,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:48,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743218113] [2024-11-16 03:48:48,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743218113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:48,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:48,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:48,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129634662] [2024-11-16 03:48:48,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:48,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:48,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:48,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:48,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:48,697 INFO L87 Difference]: Start difference. First operand 10619 states and 12084 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:49,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:49,425 INFO L93 Difference]: Finished difference Result 22341 states and 25534 transitions. [2024-11-16 03:48:49,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:49,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 488 [2024-11-16 03:48:49,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:49,443 INFO L225 Difference]: With dead ends: 22341 [2024-11-16 03:48:49,443 INFO L226 Difference]: Without dead ends: 12468 [2024-11-16 03:48:49,452 INFO L431 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 [2024-11-16 03:48:49,453 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 65 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:49,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 367 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 03:48:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12468 states. [2024-11-16 03:48:49,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12468 to 12098. [2024-11-16 03:48:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12098 states, 12097 states have (on average 1.140613375216996) internal successors, (13798), 12097 states have internal predecessors, (13798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12098 states to 12098 states and 13798 transitions. [2024-11-16 03:48:49,572 INFO L78 Accepts]: Start accepts. Automaton has 12098 states and 13798 transitions. Word has length 488 [2024-11-16 03:48:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:49,573 INFO L471 AbstractCegarLoop]: Abstraction has 12098 states and 13798 transitions. [2024-11-16 03:48:49,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 12098 states and 13798 transitions. [2024-11-16 03:48:49,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-11-16 03:48:49,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:49,587 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:49,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:48:49,587 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:49,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:49,587 INFO L85 PathProgramCache]: Analyzing trace with hash 498178370, now seen corresponding path program 1 times [2024-11-16 03:48:49,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:49,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553047316] [2024-11-16 03:48:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:49,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:50,479 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 527 proven. 24 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-16 03:48:50,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:50,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553047316] [2024-11-16 03:48:50,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553047316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:48:50,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289438576] [2024-11-16 03:48:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:50,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:48:50,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:50,486 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) [2024-11-16 03:48:50,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:48:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:50,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:48:50,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:48:51,007 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 551 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-16 03:48:51,007 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:48:51,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289438576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:51,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:48:51,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 03:48:51,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977232205] [2024-11-16 03:48:51,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:51,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:51,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:51,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:51,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:48:51,009 INFO L87 Difference]: Start difference. First operand 12098 states and 13798 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:51,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:51,720 INFO L93 Difference]: Finished difference Result 25317 states and 28931 transitions. [2024-11-16 03:48:51,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:51,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 522 [2024-11-16 03:48:51,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:51,741 INFO L225 Difference]: With dead ends: 25317 [2024-11-16 03:48:51,742 INFO L226 Difference]: Without dead ends: 14150 [2024-11-16 03:48:51,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:48:51,752 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 90 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:51,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 86 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:51,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14150 states. [2024-11-16 03:48:51,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 12283. [2024-11-16 03:48:51,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12283 states, 12282 states have (on average 1.1413450578081745) internal successors, (14018), 12282 states have internal predecessors, (14018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:51,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12283 states to 12283 states and 14018 transitions. [2024-11-16 03:48:51,885 INFO L78 Accepts]: Start accepts. Automaton has 12283 states and 14018 transitions. Word has length 522 [2024-11-16 03:48:51,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:51,886 INFO L471 AbstractCegarLoop]: Abstraction has 12283 states and 14018 transitions. [2024-11-16 03:48:51,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:51,887 INFO L276 IsEmpty]: Start isEmpty. Operand 12283 states and 14018 transitions. [2024-11-16 03:48:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2024-11-16 03:48:51,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:51,900 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:51,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:48:52,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-16 03:48:52,104 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:52,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1701521677, now seen corresponding path program 1 times [2024-11-16 03:48:52,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:52,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695672411] [2024-11-16 03:48:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:52,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:52,517 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-16 03:48:52,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:52,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695672411] [2024-11-16 03:48:52,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695672411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:52,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:52,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:52,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744118327] [2024-11-16 03:48:52,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:52,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:52,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:52,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:52,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:52,519 INFO L87 Difference]: Start difference. First operand 12283 states and 14018 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:53,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:53,163 INFO L93 Difference]: Finished difference Result 27728 states and 31722 transitions. [2024-11-16 03:48:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:53,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 523 [2024-11-16 03:48:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:53,182 INFO L225 Difference]: With dead ends: 27728 [2024-11-16 03:48:53,183 INFO L226 Difference]: Without dead ends: 16376 [2024-11-16 03:48:53,194 INFO L431 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 [2024-11-16 03:48:53,194 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 142 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:53,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 133 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:53,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16376 states. [2024-11-16 03:48:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16376 to 16004. [2024-11-16 03:48:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16004 states, 16003 states have (on average 1.127663563081922) internal successors, (18046), 16003 states have internal predecessors, (18046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:53,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16004 states to 16004 states and 18046 transitions. [2024-11-16 03:48:53,363 INFO L78 Accepts]: Start accepts. Automaton has 16004 states and 18046 transitions. Word has length 523 [2024-11-16 03:48:53,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:53,364 INFO L471 AbstractCegarLoop]: Abstraction has 16004 states and 18046 transitions. [2024-11-16 03:48:53,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:53,364 INFO L276 IsEmpty]: Start isEmpty. Operand 16004 states and 18046 transitions. [2024-11-16 03:48:53,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-16 03:48:53,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:53,385 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:53,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:48:53,385 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:53,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:53,386 INFO L85 PathProgramCache]: Analyzing trace with hash -2012039078, now seen corresponding path program 1 times [2024-11-16 03:48:53,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:53,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464529741] [2024-11-16 03:48:53,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:53,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 709 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-11-16 03:48:53,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:53,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464529741] [2024-11-16 03:48:53,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464529741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:53,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:53,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:53,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970402555] [2024-11-16 03:48:53,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:53,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:53,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:53,807 INFO L87 Difference]: Start difference. First operand 16004 states and 18046 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:54,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:54,904 INFO L93 Difference]: Finished difference Result 36090 states and 40724 transitions. [2024-11-16 03:48:54,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:48:54,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 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 533 [2024-11-16 03:48:54,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:54,930 INFO L225 Difference]: With dead ends: 36090 [2024-11-16 03:48:54,931 INFO L226 Difference]: Without dead ends: 21202 [2024-11-16 03:48:54,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:54,946 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 230 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1135 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:54,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 90 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1135 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:48:54,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21202 states. [2024-11-16 03:48:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21202 to 15634. [2024-11-16 03:48:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15634 states, 15633 states have (on average 1.1269110215569629) internal successors, (17617), 15633 states have internal predecessors, (17617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15634 states to 15634 states and 17617 transitions. [2024-11-16 03:48:55,234 INFO L78 Accepts]: Start accepts. Automaton has 15634 states and 17617 transitions. Word has length 533 [2024-11-16 03:48:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:55,234 INFO L471 AbstractCegarLoop]: Abstraction has 15634 states and 17617 transitions. [2024-11-16 03:48:55,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 3 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:55,234 INFO L276 IsEmpty]: Start isEmpty. Operand 15634 states and 17617 transitions. [2024-11-16 03:48:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-16 03:48:55,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:55,253 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:55,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:48:55,254 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:55,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:55,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1640026427, now seen corresponding path program 1 times [2024-11-16 03:48:55,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:55,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801214029] [2024-11-16 03:48:55,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:55,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:55,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 720 proven. 0 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-16 03:48:55,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:55,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801214029] [2024-11-16 03:48:55,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801214029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:55,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:55,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:55,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124213155] [2024-11-16 03:48:55,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:55,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:55,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:55,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:55,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:55,646 INFO L87 Difference]: Start difference. First operand 15634 states and 17617 transitions. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:56,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:56,308 INFO L93 Difference]: Finished difference Result 32377 states and 36454 transitions. [2024-11-16 03:48:56,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:56,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 575 [2024-11-16 03:48:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:56,327 INFO L225 Difference]: With dead ends: 32377 [2024-11-16 03:48:56,327 INFO L226 Difference]: Without dead ends: 17859 [2024-11-16 03:48:56,439 INFO L431 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 [2024-11-16 03:48:56,443 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 112 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:56,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 84 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:48:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17859 states. [2024-11-16 03:48:56,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17859 to 15053. [2024-11-16 03:48:56,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15053 states, 15052 states have (on average 1.117193728408185) internal successors, (16816), 15052 states have internal predecessors, (16816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:56,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15053 states to 15053 states and 16816 transitions. [2024-11-16 03:48:56,613 INFO L78 Accepts]: Start accepts. Automaton has 15053 states and 16816 transitions. Word has length 575 [2024-11-16 03:48:56,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:56,614 INFO L471 AbstractCegarLoop]: Abstraction has 15053 states and 16816 transitions. [2024-11-16 03:48:56,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:56,614 INFO L276 IsEmpty]: Start isEmpty. Operand 15053 states and 16816 transitions. [2024-11-16 03:48:56,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2024-11-16 03:48:56,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:56,625 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:56,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:48:56,626 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:56,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:56,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1296937522, now seen corresponding path program 1 times [2024-11-16 03:48:56,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:56,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459913353] [2024-11-16 03:48:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:56,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:57,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1286 backedges. 936 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-11-16 03:48:57,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459913353] [2024-11-16 03:48:57,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459913353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:57,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:57,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:57,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992413912] [2024-11-16 03:48:57,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:57,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:57,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:57,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:57,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:57,036 INFO L87 Difference]: Start difference. First operand 15053 states and 16816 transitions. Second operand has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:57,579 INFO L93 Difference]: Finished difference Result 30299 states and 33837 transitions. [2024-11-16 03:48:57,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:57,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 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 630 [2024-11-16 03:48:57,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:57,596 INFO L225 Difference]: With dead ends: 30299 [2024-11-16 03:48:57,596 INFO L226 Difference]: Without dead ends: 16362 [2024-11-16 03:48:57,610 INFO L431 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 [2024-11-16 03:48:57,615 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 142 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:57,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 125 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16362 states. [2024-11-16 03:48:57,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16362 to 14683. [2024-11-16 03:48:57,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14683 states, 14682 states have (on average 1.1176951369023294) internal successors, (16410), 14682 states have internal predecessors, (16410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14683 states to 14683 states and 16410 transitions. [2024-11-16 03:48:57,786 INFO L78 Accepts]: Start accepts. Automaton has 14683 states and 16410 transitions. Word has length 630 [2024-11-16 03:48:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:57,786 INFO L471 AbstractCegarLoop]: Abstraction has 14683 states and 16410 transitions. [2024-11-16 03:48:57,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.0) internal successors, (339), 3 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,786 INFO L276 IsEmpty]: Start isEmpty. Operand 14683 states and 16410 transitions. [2024-11-16 03:48:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-11-16 03:48:57,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:57,798 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:57,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:48:57,799 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:57,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:57,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1495130207, now seen corresponding path program 1 times [2024-11-16 03:48:57,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:57,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630330224] [2024-11-16 03:48:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:57,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 878 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-16 03:48:58,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:58,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630330224] [2024-11-16 03:48:58,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630330224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:58,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:58,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 03:48:58,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966677442] [2024-11-16 03:48:58,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:58,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 03:48:58,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:58,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 03:48:58,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:48:58,989 INFO L87 Difference]: Start difference. First operand 14683 states and 16410 transitions. Second operand has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:00,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:00,477 INFO L93 Difference]: Finished difference Result 31590 states and 35219 transitions. [2024-11-16 03:49:00,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 03:49:00,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 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 685 [2024-11-16 03:49:00,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:00,497 INFO L225 Difference]: With dead ends: 31590 [2024-11-16 03:49:00,497 INFO L226 Difference]: Without dead ends: 17834 [2024-11-16 03:49:00,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-16 03:49:00,508 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 214 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:00,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 259 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 03:49:00,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17834 states. [2024-11-16 03:49:00,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17834 to 15239. [2024-11-16 03:49:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 15238 states have (on average 1.1153038456490354) internal successors, (16995), 15238 states have internal predecessors, (16995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 16995 transitions. [2024-11-16 03:49:00,714 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 16995 transitions. Word has length 685 [2024-11-16 03:49:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:00,715 INFO L471 AbstractCegarLoop]: Abstraction has 15239 states and 16995 transitions. [2024-11-16 03:49:00,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.57142857142857) internal successors, (417), 6 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:00,715 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 16995 transitions. [2024-11-16 03:49:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-16 03:49:00,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:00,734 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 03:49:00,735 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash -415811578, now seen corresponding path program 1 times [2024-11-16 03:49:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567712579] [2024-11-16 03:49:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:00,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:02,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 900 proven. 8 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-16 03:49:02,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:02,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567712579] [2024-11-16 03:49:02,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567712579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:49:02,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824743077] [2024-11-16 03:49:02,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:02,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:49:02,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:49:02,051 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) [2024-11-16 03:49:02,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:49:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:02,237 INFO L255 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-16 03:49:02,247 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:49:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 786 proven. 122 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-16 03:49:03,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:49:05,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1374 backedges. 786 proven. 122 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-16 03:49:05,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824743077] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:49:05,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:49:05,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 3] total 10 [2024-11-16 03:49:05,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572497318] [2024-11-16 03:49:05,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:49:05,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 03:49:05,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:05,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 03:49:05,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-16 03:49:05,789 INFO L87 Difference]: Start difference. First operand 15239 states and 16995 transitions. Second operand has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:09,535 INFO L93 Difference]: Finished difference Result 34917 states and 38778 transitions. [2024-11-16 03:49:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-16 03:49:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 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 695 [2024-11-16 03:49:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:09,537 INFO L225 Difference]: With dead ends: 34917 [2024-11-16 03:49:09,537 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:49:09,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1412 GetRequests, 1387 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=227, Invalid=475, Unknown=0, NotChecked=0, Total=702 [2024-11-16 03:49:09,549 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 1461 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 4376 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 4998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 4376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:09,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 202 Invalid, 4998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 4376 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:49:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:49:09,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:49:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:09,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:49:09,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 695 [2024-11-16 03:49:09,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:09,551 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:49:09,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 90.81818181818181) internal successors, (999), 10 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:09,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:49:09,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:49:09,553 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:49:09,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:49:09,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 03:49:09,761 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:09,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:49:13,717 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:49:13,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:49:13 BoogieIcfgContainer [2024-11-16 03:49:13,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:49:13,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:49:13,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:49:13,743 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:49:13,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:37" (3/4) ... [2024-11-16 03:49:13,750 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:49:13,774 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:49:13,776 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:49:13,778 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:49:13,779 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:49:13,999 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:49:14,003 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:49:14,004 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:49:14,004 INFO L158 Benchmark]: Toolchain (without parser) took 38415.12ms. Allocated memory was 213.9MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 182.6MB in the beginning and 820.9MB in the end (delta: -638.3MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-16 03:49:14,004 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory was 100.5MB in the beginning and 100.5MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:49:14,005 INFO L158 Benchmark]: CACSL2BoogieTranslator took 821.50ms. Allocated memory is still 213.9MB. Free memory was 182.4MB in the beginning and 139.4MB in the end (delta: 43.0MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-11-16 03:49:14,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 189.44ms. Allocated memory is still 213.9MB. Free memory was 139.4MB in the beginning and 121.5MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:49:14,005 INFO L158 Benchmark]: Boogie Preprocessor took 203.53ms. Allocated memory is still 213.9MB. Free memory was 121.5MB in the beginning and 164.0MB in the end (delta: -42.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-16 03:49:14,006 INFO L158 Benchmark]: IcfgBuilder took 1192.48ms. Allocated memory is still 213.9MB. Free memory was 164.0MB in the beginning and 91.7MB in the end (delta: 72.3MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. [2024-11-16 03:49:14,008 INFO L158 Benchmark]: TraceAbstraction took 35741.57ms. Allocated memory was 213.9MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 90.7MB in the beginning and 838.7MB in the end (delta: -748.0MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-16 03:49:14,008 INFO L158 Benchmark]: Witness Printer took 261.09ms. Allocated memory is still 2.0GB. Free memory was 838.7MB in the beginning and 820.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:49:14,009 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory was 100.5MB in the beginning and 100.5MB in the end (delta: 49.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 821.50ms. Allocated memory is still 213.9MB. Free memory was 182.4MB in the beginning and 139.4MB in the end (delta: 43.0MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 189.44ms. Allocated memory is still 213.9MB. Free memory was 139.4MB in the beginning and 121.5MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 203.53ms. Allocated memory is still 213.9MB. Free memory was 121.5MB in the beginning and 164.0MB in the end (delta: -42.5MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * IcfgBuilder took 1192.48ms. Allocated memory is still 213.9MB. Free memory was 164.0MB in the beginning and 91.7MB in the end (delta: 72.3MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. * TraceAbstraction took 35741.57ms. Allocated memory was 213.9MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 90.7MB in the beginning and 838.7MB in the end (delta: -748.0MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 261.09ms. Allocated memory is still 2.0GB. Free memory was 838.7MB in the beginning and 820.9MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 187]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 286 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31.7s, OverallIterations: 18, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4081 SdHoareTripleChecker+Valid, 15.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4081 mSDsluCounter, 3838 SdHoareTripleChecker+Invalid, 12.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 687 mSDsCounter, 2512 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16639 IncrementalHoareTripleChecker+Invalid, 19151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2512 mSolverCounterUnsat, 3151 mSDtfsCounter, 16639 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1990 GetRequests, 1936 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16004occurred in iteration=13, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 18 MinimizatonAttempts, 16584 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 8431 NumberOfCodeBlocks, 8431 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 9105 ConstructedInterpolants, 0 QuantifiedInterpolants, 35815 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1567 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 21 InterpolantComputations, 17 PerfectInterpolantSequences, 13910/14186 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:49:14,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE