./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label39.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 0d7a1ac2bddd27216563c8e31b878b94b733d43befd074e50a1bdc6b73a7213c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:32:04,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:32:04,762 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:32:04,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:32:04,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:32:04,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:32:04,804 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:32:04,805 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:32:04,805 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:32:04,805 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:32:04,805 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:32:04,806 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:32:04,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:32:04,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:32:04,807 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:32:04,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:32:04,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:32:04,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:32:04,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:32:04,809 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:32:04,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:32:04,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:32:04,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:32:04,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:32:04,810 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:32:04,810 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:32:04,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:32:04,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:32:04,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:32:04,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:32:04,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:32:04,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:32:04,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:32:04,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:32:04,815 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:32:04,815 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:32:04,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d7a1ac2bddd27216563c8e31b878b94b733d43befd074e50a1bdc6b73a7213c [2024-10-23 21:32:05,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:32:05,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:32:05,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:32:05,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:32:05,086 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:32:05,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label39.c [2024-10-23 21:32:06,331 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:32:06,645 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:32:06,646 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label39.c [2024-10-23 21:32:06,673 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63443cddf/fddf112624494974ba8a7f8182a4b3ec/FLAG3ac1ebb87 [2024-10-23 21:32:06,898 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63443cddf/fddf112624494974ba8a7f8182a4b3ec [2024-10-23 21:32:06,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:32:06,902 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:32:06,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:32:06,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:32:06,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:32:06,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:32:06" (1/1) ... [2024-10-23 21:32:06,913 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ec45f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:06, skipping insertion in model container [2024-10-23 21:32:06,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:32:06" (1/1) ... [2024-10-23 21:32:06,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:32:07,237 WARN L248 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/Problem17_label39.c[9366,9379] [2024-10-23 21:32:07,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:32:07,773 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:32:07,799 WARN L248 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/Problem17_label39.c[9366,9379] [2024-10-23 21:32:07,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:32:07,996 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:32:07,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07 WrapperNode [2024-10-23 21:32:07,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:32:07,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:32:07,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:32:07,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:32:08,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,259 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-10-23 21:32:08,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:32:08,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:32:08,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:32:08,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:32:08,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,271 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,506 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]. [2024-10-23 21:32:08,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,654 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,671 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:32:08,759 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:32:08,759 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:32:08,760 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:32:08,761 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (1/1) ... [2024-10-23 21:32:08,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:32:08,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:32:08,796 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) [2024-10-23 21:32:08,802 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 [2024-10-23 21:32:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:32:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:32:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:32:08,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:32:08,901 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:32:08,903 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:32:11,762 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-10-23 21:32:11,763 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:32:11,815 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:32:11,816 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:32:11,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:32:11 BoogieIcfgContainer [2024-10-23 21:32:11,816 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:32:11,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:32:11,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:32:11,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:32:11,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:32:06" (1/3) ... [2024-10-23 21:32:11,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f024447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:32:11, skipping insertion in model container [2024-10-23 21:32:11,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:32:07" (2/3) ... [2024-10-23 21:32:11,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f024447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:32:11, skipping insertion in model container [2024-10-23 21:32:11,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:32:11" (3/3) ... [2024-10-23 21:32:11,825 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label39.c [2024-10-23 21:32:11,840 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:32:11,841 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:32:11,925 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:32:11,934 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;@2adbfe0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:32:11,935 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:32:11,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-23 21:32:11,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:11,955 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, 1, 1, 1] [2024-10-23 21:32:11,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:11,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash -193928819, now seen corresponding path program 1 times [2024-10-23 21:32:11,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:11,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994190039] [2024-10-23 21:32:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:11,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:12,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:12,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994190039] [2024-10-23 21:32:12,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994190039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:12,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:12,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:12,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933791636] [2024-10-23 21:32:12,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:12,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:32:12,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:12,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:32:12,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:32:12,243 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:12,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:12,315 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2024-10-23 21:32:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:32:12,317 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-23 21:32:12,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:12,331 INFO L225 Difference]: With dead ends: 1055 [2024-10-23 21:32:12,331 INFO L226 Difference]: Without dead ends: 526 [2024-10-23 21:32:12,337 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:32:12,342 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:12,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:32:12,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-10-23 21:32:12,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-10-23 21:32:12,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:12,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2024-10-23 21:32:12,416 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 62 [2024-10-23 21:32:12,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:12,416 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2024-10-23 21:32:12,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:12,417 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2024-10-23 21:32:12,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-23 21:32:12,419 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:12,419 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, 1, 1, 1] [2024-10-23 21:32:12,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:32:12,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:12,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:12,420 INFO L85 PathProgramCache]: Analyzing trace with hash 501592809, now seen corresponding path program 1 times [2024-10-23 21:32:12,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:12,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430399820] [2024-10-23 21:32:12,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:12,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:12,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:12,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430399820] [2024-10-23 21:32:12,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430399820] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:12,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:12,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052186434] [2024-10-23 21:32:12,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:12,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:12,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:12,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:12,609 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:14,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:14,479 INFO L93 Difference]: Finished difference Result 1499 states and 2693 transitions. [2024-10-23 21:32:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:14,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-10-23 21:32:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:14,487 INFO L225 Difference]: With dead ends: 1499 [2024-10-23 21:32:14,487 INFO L226 Difference]: Without dead ends: 974 [2024-10-23 21:32:14,491 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 [2024-10-23 21:32:14,492 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 411 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:14,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 495 Invalid, 1666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:32:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2024-10-23 21:32:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 971. [2024-10-23 21:32:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 971 states, 970 states have (on average 1.5082474226804123) internal successors, (1463), 970 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:14,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 971 states to 971 states and 1463 transitions. [2024-10-23 21:32:14,525 INFO L78 Accepts]: Start accepts. Automaton has 971 states and 1463 transitions. Word has length 62 [2024-10-23 21:32:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:14,525 INFO L471 AbstractCegarLoop]: Abstraction has 971 states and 1463 transitions. [2024-10-23 21:32:14,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 971 states and 1463 transitions. [2024-10-23 21:32:14,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-10-23 21:32:14,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:14,531 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:14,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:32:14,532 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:14,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:14,532 INFO L85 PathProgramCache]: Analyzing trace with hash -170379876, now seen corresponding path program 1 times [2024-10-23 21:32:14,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:14,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776347516] [2024-10-23 21:32:14,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:14,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:14,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:14,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:14,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776347516] [2024-10-23 21:32:14,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776347516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:14,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:14,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:14,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313234344] [2024-10-23 21:32:14,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:14,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:14,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:14,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:14,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:14,804 INFO L87 Difference]: Start difference. First operand 971 states and 1463 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:16,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:16,644 INFO L93 Difference]: Finished difference Result 2813 states and 4241 transitions. [2024-10-23 21:32:16,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:16,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-10-23 21:32:16,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:16,652 INFO L225 Difference]: With dead ends: 2813 [2024-10-23 21:32:16,652 INFO L226 Difference]: Without dead ends: 1843 [2024-10-23 21:32:16,654 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 [2024-10-23 21:32:16,657 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 428 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:16,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 918 Invalid, 1698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:32:16,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2024-10-23 21:32:16,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1841. [2024-10-23 21:32:16,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1841 states, 1840 states have (on average 1.3603260869565217) internal successors, (2503), 1840 states have internal predecessors, (2503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2503 transitions. [2024-10-23 21:32:16,704 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2503 transitions. Word has length 132 [2024-10-23 21:32:16,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:16,705 INFO L471 AbstractCegarLoop]: Abstraction has 1841 states and 2503 transitions. [2024-10-23 21:32:16,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:16,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2503 transitions. [2024-10-23 21:32:16,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-23 21:32:16,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:16,710 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, 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] [2024-10-23 21:32:16,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:32:16,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:16,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:16,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1591153639, now seen corresponding path program 1 times [2024-10-23 21:32:16,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:16,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463830162] [2024-10-23 21:32:16,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:16,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:16,963 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:16,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:16,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463830162] [2024-10-23 21:32:16,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463830162] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:16,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:16,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:16,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079250219] [2024-10-23 21:32:16,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:16,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:16,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:16,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:16,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:16,966 INFO L87 Difference]: Start difference. First operand 1841 states and 2503 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:18,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:18,610 INFO L93 Difference]: Finished difference Result 5394 states and 7325 transitions. [2024-10-23 21:32:18,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:18,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2024-10-23 21:32:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:18,621 INFO L225 Difference]: With dead ends: 5394 [2024-10-23 21:32:18,622 INFO L226 Difference]: Without dead ends: 2700 [2024-10-23 21:32:18,628 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 [2024-10-23 21:32:18,628 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 368 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:18,629 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 589 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:32:18,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2024-10-23 21:32:18,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2700. [2024-10-23 21:32:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2700 states, 2699 states have (on average 1.1919229344201556) internal successors, (3217), 2699 states have internal predecessors, (3217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:18,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2700 states to 2700 states and 3217 transitions. [2024-10-23 21:32:18,669 INFO L78 Accepts]: Start accepts. Automaton has 2700 states and 3217 transitions. Word has length 154 [2024-10-23 21:32:18,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:18,670 INFO L471 AbstractCegarLoop]: Abstraction has 2700 states and 3217 transitions. [2024-10-23 21:32:18,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2700 states and 3217 transitions. [2024-10-23 21:32:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-10-23 21:32:18,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:18,673 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, 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, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:18,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:32:18,674 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:18,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:18,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1816151866, now seen corresponding path program 1 times [2024-10-23 21:32:18,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:18,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025066883] [2024-10-23 21:32:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:18,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:18,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025066883] [2024-10-23 21:32:18,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025066883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:18,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:18,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:18,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507583430] [2024-10-23 21:32:18,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:18,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:18,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:18,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:18,875 INFO L87 Difference]: Start difference. First operand 2700 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:20,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:20,209 INFO L93 Difference]: Finished difference Result 7107 states and 8597 transitions. [2024-10-23 21:32:20,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:20,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 214 [2024-10-23 21:32:20,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:20,221 INFO L225 Difference]: With dead ends: 7107 [2024-10-23 21:32:20,221 INFO L226 Difference]: Without dead ends: 4408 [2024-10-23 21:32:20,225 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 [2024-10-23 21:32:20,226 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 496 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:20,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 781 Invalid, 1443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:32:20,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4408 states. [2024-10-23 21:32:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4408 to 4408. [2024-10-23 21:32:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4408 states, 4407 states have (on average 1.1706376219650556) internal successors, (5159), 4407 states have internal predecessors, (5159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:20,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4408 states to 4408 states and 5159 transitions. [2024-10-23 21:32:20,281 INFO L78 Accepts]: Start accepts. Automaton has 4408 states and 5159 transitions. Word has length 214 [2024-10-23 21:32:20,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:20,282 INFO L471 AbstractCegarLoop]: Abstraction has 4408 states and 5159 transitions. [2024-10-23 21:32:20,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:20,282 INFO L276 IsEmpty]: Start isEmpty. Operand 4408 states and 5159 transitions. [2024-10-23 21:32:20,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-10-23 21:32:20,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:20,285 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:20,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:32:20,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:20,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:20,285 INFO L85 PathProgramCache]: Analyzing trace with hash 361293035, now seen corresponding path program 1 times [2024-10-23 21:32:20,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:20,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126673943] [2024-10-23 21:32:20,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:20,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:20,408 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-23 21:32:20,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:20,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126673943] [2024-10-23 21:32:20,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126673943] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:20,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:20,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307992064] [2024-10-23 21:32:20,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:20,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:20,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:20,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:20,411 INFO L87 Difference]: Start difference. First operand 4408 states and 5159 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:21,646 INFO L93 Difference]: Finished difference Result 10935 states and 12969 transitions. [2024-10-23 21:32:21,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:21,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2024-10-23 21:32:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:21,664 INFO L225 Difference]: With dead ends: 10935 [2024-10-23 21:32:21,664 INFO L226 Difference]: Without dead ends: 6527 [2024-10-23 21:32:21,669 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 [2024-10-23 21:32:21,670 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 387 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1216 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:21,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 442 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1216 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:32:21,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2024-10-23 21:32:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 4381. [2024-10-23 21:32:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 4380 states have (on average 1.1684931506849314) internal successors, (5118), 4380 states have internal predecessors, (5118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:21,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 5118 transitions. [2024-10-23 21:32:21,757 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 5118 transitions. Word has length 216 [2024-10-23 21:32:21,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:21,757 INFO L471 AbstractCegarLoop]: Abstraction has 4381 states and 5118 transitions. [2024-10-23 21:32:21,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 5118 transitions. [2024-10-23 21:32:21,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-10-23 21:32:21,760 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:21,760 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:21,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:32:21,760 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:21,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:21,761 INFO L85 PathProgramCache]: Analyzing trace with hash 973168997, now seen corresponding path program 1 times [2024-10-23 21:32:21,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:21,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963895658] [2024-10-23 21:32:21,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:21,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:21,967 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:32:21,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:21,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963895658] [2024-10-23 21:32:21,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963895658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:21,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:21,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535346263] [2024-10-23 21:32:21,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:21,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:21,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:21,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:21,970 INFO L87 Difference]: Start difference. First operand 4381 states and 5118 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:23,378 INFO L93 Difference]: Finished difference Result 10044 states and 11705 transitions. [2024-10-23 21:32:23,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:23,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 282 [2024-10-23 21:32:23,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:23,393 INFO L225 Difference]: With dead ends: 10044 [2024-10-23 21:32:23,393 INFO L226 Difference]: Without dead ends: 5664 [2024-10-23 21:32:23,398 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 [2024-10-23 21:32:23,400 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 373 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:23,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 891 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:32:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5664 states. [2024-10-23 21:32:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5664 to 5233. [2024-10-23 21:32:23,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5233 states, 5232 states have (on average 1.1588302752293578) internal successors, (6063), 5232 states have internal predecessors, (6063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5233 states to 5233 states and 6063 transitions. [2024-10-23 21:32:23,461 INFO L78 Accepts]: Start accepts. Automaton has 5233 states and 6063 transitions. Word has length 282 [2024-10-23 21:32:23,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:23,462 INFO L471 AbstractCegarLoop]: Abstraction has 5233 states and 6063 transitions. [2024-10-23 21:32:23,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 5233 states and 6063 transitions. [2024-10-23 21:32:23,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-10-23 21:32:23,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:23,465 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, 4, 4, 4, 4, 4, 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] [2024-10-23 21:32:23,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:32:23,465 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:23,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:23,466 INFO L85 PathProgramCache]: Analyzing trace with hash 262398569, now seen corresponding path program 1 times [2024-10-23 21:32:23,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:23,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106101134] [2024-10-23 21:32:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:23,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:23,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:23,713 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-10-23 21:32:23,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:23,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106101134] [2024-10-23 21:32:23,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106101134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:23,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:23,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:23,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327694411] [2024-10-23 21:32:23,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:23,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:23,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:23,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:23,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:23,716 INFO L87 Difference]: Start difference. First operand 5233 states and 6063 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:25,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:25,070 INFO L93 Difference]: Finished difference Result 12592 states and 14782 transitions. [2024-10-23 21:32:25,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:25,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 294 [2024-10-23 21:32:25,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:25,089 INFO L225 Difference]: With dead ends: 12592 [2024-10-23 21:32:25,090 INFO L226 Difference]: Without dead ends: 6935 [2024-10-23 21:32:25,098 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 [2024-10-23 21:32:25,099 INFO L432 NwaCegarLoop]: 776 mSDtfsCounter, 383 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:25,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 844 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-23 21:32:25,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2024-10-23 21:32:25,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6935. [2024-10-23 21:32:25,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6935 states, 6934 states have (on average 1.1322468993366022) internal successors, (7851), 6934 states have internal predecessors, (7851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6935 states to 6935 states and 7851 transitions. [2024-10-23 21:32:25,190 INFO L78 Accepts]: Start accepts. Automaton has 6935 states and 7851 transitions. Word has length 294 [2024-10-23 21:32:25,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:25,191 INFO L471 AbstractCegarLoop]: Abstraction has 6935 states and 7851 transitions. [2024-10-23 21:32:25,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6935 states and 7851 transitions. [2024-10-23 21:32:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-10-23 21:32:25,195 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:25,195 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:25,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:32:25,195 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:25,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:25,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1489443268, now seen corresponding path program 1 times [2024-10-23 21:32:25,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:25,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332376325] [2024-10-23 21:32:25,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:25,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 430 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:25,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:25,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332376325] [2024-10-23 21:32:25,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332376325] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:25,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:25,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:32:25,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914436885] [2024-10-23 21:32:25,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:25,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:25,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:25,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:25,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:25,727 INFO L87 Difference]: Start difference. First operand 6935 states and 7851 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:27,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:27,867 INFO L93 Difference]: Finished difference Result 21979 states and 24836 transitions. [2024-10-23 21:32:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:27,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 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 334 [2024-10-23 21:32:27,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:27,891 INFO L225 Difference]: With dead ends: 21979 [2024-10-23 21:32:27,891 INFO L226 Difference]: Without dead ends: 15045 [2024-10-23 21:32:27,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:27,901 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 821 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:27,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 221 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-23 21:32:27,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15045 states. [2024-10-23 21:32:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15045 to 13336. [2024-10-23 21:32:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13336 states, 13335 states have (on average 1.133933258342707) internal successors, (15121), 13335 states have internal predecessors, (15121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:28,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13336 states to 13336 states and 15121 transitions. [2024-10-23 21:32:28,160 INFO L78 Accepts]: Start accepts. Automaton has 13336 states and 15121 transitions. Word has length 334 [2024-10-23 21:32:28,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:28,162 INFO L471 AbstractCegarLoop]: Abstraction has 13336 states and 15121 transitions. [2024-10-23 21:32:28,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:28,166 INFO L276 IsEmpty]: Start isEmpty. Operand 13336 states and 15121 transitions. [2024-10-23 21:32:28,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-10-23 21:32:28,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:28,172 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:28,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:32:28,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:28,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1394061168, now seen corresponding path program 1 times [2024-10-23 21:32:28,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:28,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912526579] [2024-10-23 21:32:28,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:28,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-10-23 21:32:28,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:28,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912526579] [2024-10-23 21:32:28,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912526579] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:28,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:28,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:28,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535974363] [2024-10-23 21:32:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:28,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:28,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:28,441 INFO L87 Difference]: Start difference. First operand 13336 states and 15121 transitions. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:29,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:29,933 INFO L93 Difference]: Finished difference Result 35222 states and 39900 transitions. [2024-10-23 21:32:29,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:29,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 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 351 [2024-10-23 21:32:29,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:29,967 INFO L225 Difference]: With dead ends: 35222 [2024-10-23 21:32:29,968 INFO L226 Difference]: Without dead ends: 21887 [2024-10-23 21:32:29,982 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 [2024-10-23 21:32:29,983 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 438 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 1580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 216 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:29,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 817 Invalid, 1580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [216 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-23 21:32:30,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21887 states. [2024-10-23 21:32:30,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21887 to 21014. [2024-10-23 21:32:30,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21014 states, 21013 states have (on average 1.1174986912863465) internal successors, (23482), 21013 states have internal predecessors, (23482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:30,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21014 states to 21014 states and 23482 transitions. [2024-10-23 21:32:30,246 INFO L78 Accepts]: Start accepts. Automaton has 21014 states and 23482 transitions. Word has length 351 [2024-10-23 21:32:30,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:30,246 INFO L471 AbstractCegarLoop]: Abstraction has 21014 states and 23482 transitions. [2024-10-23 21:32:30,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:30,247 INFO L276 IsEmpty]: Start isEmpty. Operand 21014 states and 23482 transitions. [2024-10-23 21:32:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-10-23 21:32:30,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:30,253 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:30,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:32:30,254 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:30,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:30,257 INFO L85 PathProgramCache]: Analyzing trace with hash -544006677, now seen corresponding path program 1 times [2024-10-23 21:32:30,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:30,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930329459] [2024-10-23 21:32:30,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:30,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:30,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:30,434 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-23 21:32:30,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:30,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930329459] [2024-10-23 21:32:30,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930329459] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:30,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:30,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:32:30,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489096503] [2024-10-23 21:32:30,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:30,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:30,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:30,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:30,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:30,436 INFO L87 Difference]: Start difference. First operand 21014 states and 23482 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:31,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:31,132 INFO L93 Difference]: Finished difference Result 42012 states and 46948 transitions. [2024-10-23 21:32:31,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:31,134 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2024-10-23 21:32:31,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:31,159 INFO L225 Difference]: With dead ends: 42012 [2024-10-23 21:32:31,160 INFO L226 Difference]: Without dead ends: 20999 [2024-10-23 21:32:31,180 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 [2024-10-23 21:32:31,181 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 669 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:31,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 120 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:32:31,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20999 states. [2024-10-23 21:32:31,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20999 to 20994. [2024-10-23 21:32:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20994 states, 20993 states have (on average 1.1166579335969133) internal successors, (23442), 20993 states have internal predecessors, (23442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20994 states to 20994 states and 23442 transitions. [2024-10-23 21:32:31,430 INFO L78 Accepts]: Start accepts. Automaton has 20994 states and 23442 transitions. Word has length 360 [2024-10-23 21:32:31,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:31,430 INFO L471 AbstractCegarLoop]: Abstraction has 20994 states and 23442 transitions. [2024-10-23 21:32:31,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:31,431 INFO L276 IsEmpty]: Start isEmpty. Operand 20994 states and 23442 transitions. [2024-10-23 21:32:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-10-23 21:32:31,437 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:31,437 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:31,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:32:31,437 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:31,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:31,438 INFO L85 PathProgramCache]: Analyzing trace with hash 966223054, now seen corresponding path program 1 times [2024-10-23 21:32:31,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:31,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935189722] [2024-10-23 21:32:31,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:31,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:31,676 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-10-23 21:32:31,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:31,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935189722] [2024-10-23 21:32:31,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935189722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:31,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:31,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881965110] [2024-10-23 21:32:31,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:31,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:31,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:31,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:31,678 INFO L87 Difference]: Start difference. First operand 20994 states and 23442 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:33,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:33,332 INFO L93 Difference]: Finished difference Result 48383 states and 54182 transitions. [2024-10-23 21:32:33,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:33,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 377 [2024-10-23 21:32:33,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:33,368 INFO L225 Difference]: With dead ends: 48383 [2024-10-23 21:32:33,368 INFO L226 Difference]: Without dead ends: 27390 [2024-10-23 21:32:33,381 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 [2024-10-23 21:32:33,382 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 443 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:33,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 253 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-23 21:32:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27390 states. [2024-10-23 21:32:33,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27390 to 25234. [2024-10-23 21:32:33,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25234 states, 25233 states have (on average 1.1257876590179527) internal successors, (28407), 25233 states have internal predecessors, (28407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:33,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25234 states to 25234 states and 28407 transitions. [2024-10-23 21:32:33,741 INFO L78 Accepts]: Start accepts. Automaton has 25234 states and 28407 transitions. Word has length 377 [2024-10-23 21:32:33,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:33,742 INFO L471 AbstractCegarLoop]: Abstraction has 25234 states and 28407 transitions. [2024-10-23 21:32:33,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:33,742 INFO L276 IsEmpty]: Start isEmpty. Operand 25234 states and 28407 transitions. [2024-10-23 21:32:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-10-23 21:32:33,751 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:33,751 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:33,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:32:33,752 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:33,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash -67541884, now seen corresponding path program 1 times [2024-10-23 21:32:33,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:33,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039946712] [2024-10-23 21:32:33,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:33,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:34,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:34,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039946712] [2024-10-23 21:32:34,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039946712] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:34,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:34,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:34,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191544548] [2024-10-23 21:32:34,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:34,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:34,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:34,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:34,047 INFO L87 Difference]: Start difference. First operand 25234 states and 28407 transitions. Second operand has 4 states, 4 states have (on average 100.25) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:35,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:35,968 INFO L93 Difference]: Finished difference Result 61554 states and 69145 transitions. [2024-10-23 21:32:35,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:35,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 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 401 [2024-10-23 21:32:35,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:36,006 INFO L225 Difference]: With dead ends: 61554 [2024-10-23 21:32:36,007 INFO L226 Difference]: Without dead ends: 35896 [2024-10-23 21:32:36,022 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 [2024-10-23 21:32:36,023 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 610 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 2340 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 2340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:36,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 184 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 2340 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:32:36,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35896 states. [2024-10-23 21:32:36,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35896 to 35895. [2024-10-23 21:32:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35895 states, 35894 states have (on average 1.1228060400066864) internal successors, (40302), 35894 states have internal predecessors, (40302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:36,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35895 states to 35895 states and 40302 transitions. [2024-10-23 21:32:36,376 INFO L78 Accepts]: Start accepts. Automaton has 35895 states and 40302 transitions. Word has length 401 [2024-10-23 21:32:36,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:36,376 INFO L471 AbstractCegarLoop]: Abstraction has 35895 states and 40302 transitions. [2024-10-23 21:32:36,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.25) internal successors, (401), 3 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:36,377 INFO L276 IsEmpty]: Start isEmpty. Operand 35895 states and 40302 transitions. [2024-10-23 21:32:36,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-10-23 21:32:36,386 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:36,387 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:36,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:32:36,387 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:36,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:36,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1061119686, now seen corresponding path program 1 times [2024-10-23 21:32:36,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:36,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107875241] [2024-10-23 21:32:36,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:36,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:36,573 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 320 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-10-23 21:32:36,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:36,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107875241] [2024-10-23 21:32:36,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107875241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:36,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:36,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:36,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932359966] [2024-10-23 21:32:36,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:36,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:36,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:36,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:36,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:36,576 INFO L87 Difference]: Start difference. First operand 35895 states and 40302 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:38,060 INFO L93 Difference]: Finished difference Result 81167 states and 91135 transitions. [2024-10-23 21:32:38,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:38,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 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 423 [2024-10-23 21:32:38,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:38,107 INFO L225 Difference]: With dead ends: 81167 [2024-10-23 21:32:38,107 INFO L226 Difference]: Without dead ends: 45273 [2024-10-23 21:32:38,129 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 [2024-10-23 21:32:38,130 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 502 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1290 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:38,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 222 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1290 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:32:38,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45273 states. [2024-10-23 21:32:38,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45273 to 45257. [2024-10-23 21:32:38,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45257 states, 45256 states have (on average 1.1104604914265512) internal successors, (50255), 45256 states have internal predecessors, (50255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45257 states to 45257 states and 50255 transitions. [2024-10-23 21:32:38,530 INFO L78 Accepts]: Start accepts. Automaton has 45257 states and 50255 transitions. Word has length 423 [2024-10-23 21:32:38,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:38,530 INFO L471 AbstractCegarLoop]: Abstraction has 45257 states and 50255 transitions. [2024-10-23 21:32:38,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:38,530 INFO L276 IsEmpty]: Start isEmpty. Operand 45257 states and 50255 transitions. [2024-10-23 21:32:38,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-10-23 21:32:38,544 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:38,544 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:38,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:32:38,544 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:38,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:38,545 INFO L85 PathProgramCache]: Analyzing trace with hash -128129830, now seen corresponding path program 1 times [2024-10-23 21:32:38,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:38,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735151368] [2024-10-23 21:32:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:38,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-10-23 21:32:38,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:38,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735151368] [2024-10-23 21:32:38,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735151368] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:38,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:38,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:38,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273681348] [2024-10-23 21:32:38,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:38,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:38,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:38,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:38,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:38,869 INFO L87 Difference]: Start difference. First operand 45257 states and 50255 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:40,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:40,297 INFO L93 Difference]: Finished difference Result 99443 states and 111248 transitions. [2024-10-23 21:32:40,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:40,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 524 [2024-10-23 21:32:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:40,353 INFO L225 Difference]: With dead ends: 99443 [2024-10-23 21:32:40,354 INFO L226 Difference]: Without dead ends: 52480 [2024-10-23 21:32:40,382 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 [2024-10-23 21:32:40,383 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 411 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:40,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 760 Invalid, 1448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:32:40,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52480 states. [2024-10-23 21:32:40,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52480 to 52053. [2024-10-23 21:32:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52053 states, 52052 states have (on average 1.104337969722585) internal successors, (57483), 52052 states have internal predecessors, (57483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:41,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52053 states to 52053 states and 57483 transitions. [2024-10-23 21:32:41,087 INFO L78 Accepts]: Start accepts. Automaton has 52053 states and 57483 transitions. Word has length 524 [2024-10-23 21:32:41,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:41,088 INFO L471 AbstractCegarLoop]: Abstraction has 52053 states and 57483 transitions. [2024-10-23 21:32:41,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:41,088 INFO L276 IsEmpty]: Start isEmpty. Operand 52053 states and 57483 transitions. [2024-10-23 21:32:41,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-10-23 21:32:41,111 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:41,111 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:41,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:32:41,111 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:41,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:41,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1714721869, now seen corresponding path program 1 times [2024-10-23 21:32:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100976565] [2024-10-23 21:32:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 61 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:41,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:41,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100976565] [2024-10-23 21:32:41,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100976565] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:32:41,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829209641] [2024-10-23 21:32:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:41,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:32:41,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:32:41,892 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) [2024-10-23 21:32:41,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:32:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:42,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-23 21:32:42,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:32:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 61 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:42,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 21:32:43,221 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:32:43,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829209641] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-23 21:32:43,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-23 21:32:43,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2024-10-23 21:32:43,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360425505] [2024-10-23 21:32:43,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:43,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-23 21:32:43,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:43,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-23 21:32:43,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:32:43,223 INFO L87 Difference]: Start difference. First operand 52053 states and 57483 transitions. Second operand has 5 states, 5 states have (on average 109.4) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:46,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:46,189 INFO L93 Difference]: Finished difference Result 146296 states and 161538 transitions. [2024-10-23 21:32:46,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 21:32:46,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 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 547 [2024-10-23 21:32:46,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:46,290 INFO L225 Difference]: With dead ends: 146296 [2024-10-23 21:32:46,290 INFO L226 Difference]: Without dead ends: 91266 [2024-10-23 21:32:46,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1096 GetRequests, 1090 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-10-23 21:32:46,326 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 1196 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 1198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 3881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:46,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 170 Invalid, 3881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-23 21:32:46,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91266 states. [2024-10-23 21:32:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91266 to 75075. [2024-10-23 21:32:47,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75075 states, 75074 states have (on average 1.1009803660388418) internal successors, (82655), 75074 states have internal predecessors, (82655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75075 states to 75075 states and 82655 transitions. [2024-10-23 21:32:47,405 INFO L78 Accepts]: Start accepts. Automaton has 75075 states and 82655 transitions. Word has length 547 [2024-10-23 21:32:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:47,405 INFO L471 AbstractCegarLoop]: Abstraction has 75075 states and 82655 transitions. [2024-10-23 21:32:47,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.4) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:47,406 INFO L276 IsEmpty]: Start isEmpty. Operand 75075 states and 82655 transitions. [2024-10-23 21:32:47,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2024-10-23 21:32:47,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:47,423 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, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:47,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-23 21:32:47,623 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,SelfDestructingSolverStorable15 [2024-10-23 21:32:47,623 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:47,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:47,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1013662199, now seen corresponding path program 1 times [2024-10-23 21:32:47,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:47,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525303993] [2024-10-23 21:32:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2024-10-23 21:32:48,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:48,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525303993] [2024-10-23 21:32:48,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525303993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:48,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:48,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:48,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773978470] [2024-10-23 21:32:48,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:48,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:48,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:48,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:48,131 INFO L87 Difference]: Start difference. First operand 75075 states and 82655 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:49,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:49,639 INFO L93 Difference]: Finished difference Result 144121 states and 158276 transitions. [2024-10-23 21:32:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:49,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 576 [2024-10-23 21:32:49,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:49,716 INFO L225 Difference]: With dead ends: 144121 [2024-10-23 21:32:49,716 INFO L226 Difference]: Without dead ends: 64366 [2024-10-23 21:32:49,761 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 [2024-10-23 21:32:49,761 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 421 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:49,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 630 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:32:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64366 states. [2024-10-23 21:32:50,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64366 to 64362. [2024-10-23 21:32:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64362 states, 64361 states have (on average 1.0824101552182221) internal successors, (69665), 64361 states have internal predecessors, (69665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:50,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64362 states to 64362 states and 69665 transitions. [2024-10-23 21:32:50,577 INFO L78 Accepts]: Start accepts. Automaton has 64362 states and 69665 transitions. Word has length 576 [2024-10-23 21:32:50,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:50,578 INFO L471 AbstractCegarLoop]: Abstraction has 64362 states and 69665 transitions. [2024-10-23 21:32:50,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:50,578 INFO L276 IsEmpty]: Start isEmpty. Operand 64362 states and 69665 transitions. [2024-10-23 21:32:50,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2024-10-23 21:32:50,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:50,602 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, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:50,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:32:50,603 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:50,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:50,603 INFO L85 PathProgramCache]: Analyzing trace with hash 73774505, now seen corresponding path program 1 times [2024-10-23 21:32:50,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:50,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596589775] [2024-10-23 21:32:50,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:50,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:51,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 912 trivial. 0 not checked. [2024-10-23 21:32:51,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:51,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596589775] [2024-10-23 21:32:51,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596589775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:51,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:51,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:32:51,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400042871] [2024-10-23 21:32:51,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:51,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:32:51,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:51,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:32:51,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:32:51,103 INFO L87 Difference]: Start difference. First operand 64362 states and 69665 transitions. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:52,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:52,486 INFO L93 Difference]: Finished difference Result 134667 states and 145793 transitions. [2024-10-23 21:32:52,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:32:52,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 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 796 [2024-10-23 21:32:52,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:52,562 INFO L225 Difference]: With dead ends: 134667 [2024-10-23 21:32:52,562 INFO L226 Difference]: Without dead ends: 67755 [2024-10-23 21:32:52,591 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 [2024-10-23 21:32:52,591 INFO L432 NwaCegarLoop]: 675 mSDtfsCounter, 443 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1076 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1076 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:52,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 714 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1076 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-23 21:32:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67755 states. [2024-10-23 21:32:53,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67755 to 63927. [2024-10-23 21:32:53,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63927 states, 63926 states have (on average 1.0723336357663549) internal successors, (68550), 63926 states have internal predecessors, (68550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63927 states to 63927 states and 68550 transitions. [2024-10-23 21:32:53,387 INFO L78 Accepts]: Start accepts. Automaton has 63927 states and 68550 transitions. Word has length 796 [2024-10-23 21:32:53,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:53,388 INFO L471 AbstractCegarLoop]: Abstraction has 63927 states and 68550 transitions. [2024-10-23 21:32:53,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 63927 states and 68550 transitions. [2024-10-23 21:32:53,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2024-10-23 21:32:53,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:53,630 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, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:53,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-23 21:32:53,630 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:53,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:53,631 INFO L85 PathProgramCache]: Analyzing trace with hash -418891996, now seen corresponding path program 1 times [2024-10-23 21:32:53,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:53,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587579954] [2024-10-23 21:32:53,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:53,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1289 backedges. 1154 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-23 21:32:54,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:54,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587579954] [2024-10-23 21:32:54,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587579954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:54,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:54,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:32:54,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113077500] [2024-10-23 21:32:54,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:54,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:54,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:54,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:54,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:54,798 INFO L87 Difference]: Start difference. First operand 63927 states and 68550 transitions. Second operand has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:56,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:32:56,934 INFO L93 Difference]: Finished difference Result 131260 states and 140855 transitions. [2024-10-23 21:32:56,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:32:56,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 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 938 [2024-10-23 21:32:56,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:32:57,004 INFO L225 Difference]: With dead ends: 131260 [2024-10-23 21:32:57,005 INFO L226 Difference]: Without dead ends: 67334 [2024-10-23 21:32:57,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:57,042 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 652 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 2523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:32:57,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 127 Invalid, 2523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2185 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:32:57,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67334 states. [2024-10-23 21:32:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67334 to 63077. [2024-10-23 21:32:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63077 states, 63076 states have (on average 1.070898598516076) internal successors, (67548), 63076 states have internal predecessors, (67548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63077 states to 63077 states and 67548 transitions. [2024-10-23 21:32:57,808 INFO L78 Accepts]: Start accepts. Automaton has 63077 states and 67548 transitions. Word has length 938 [2024-10-23 21:32:57,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:32:57,808 INFO L471 AbstractCegarLoop]: Abstraction has 63077 states and 67548 transitions. [2024-10-23 21:32:57,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 201.25) internal successors, (805), 4 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:32:57,809 INFO L276 IsEmpty]: Start isEmpty. Operand 63077 states and 67548 transitions. [2024-10-23 21:32:57,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2024-10-23 21:32:57,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:32:57,840 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:32:57,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-23 21:32:57,841 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:32:57,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:32:57,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2010060766, now seen corresponding path program 1 times [2024-10-23 21:32:57,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:32:57,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156220757] [2024-10-23 21:32:57,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:32:57,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:32:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:32:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2024-10-23 21:32:58,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:32:58,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156220757] [2024-10-23 21:32:58,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156220757] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:32:58,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:32:58,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:32:58,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453716524] [2024-10-23 21:32:58,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:32:58,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:32:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:32:58,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:32:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:32:58,832 INFO L87 Difference]: Start difference. First operand 63077 states and 67548 transitions. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:00,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:00,943 INFO L93 Difference]: Finished difference Result 129537 states and 138707 transitions. [2024-10-23 21:33:00,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:33:00,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 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 954 [2024-10-23 21:33:00,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:01,018 INFO L225 Difference]: With dead ends: 129537 [2024-10-23 21:33:01,018 INFO L226 Difference]: Without dead ends: 66461 [2024-10-23 21:33:01,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:01,055 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 814 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 2669 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 2669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:01,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 277 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 2669 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:33:01,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66461 states. [2024-10-23 21:33:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66461 to 63904. [2024-10-23 21:33:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63904 states, 63903 states have (on average 1.0638311190397947) internal successors, (67982), 63903 states have internal predecessors, (67982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:01,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63904 states to 63904 states and 67982 transitions. [2024-10-23 21:33:01,796 INFO L78 Accepts]: Start accepts. Automaton has 63904 states and 67982 transitions. Word has length 954 [2024-10-23 21:33:01,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:01,797 INFO L471 AbstractCegarLoop]: Abstraction has 63904 states and 67982 transitions. [2024-10-23 21:33:01,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:01,797 INFO L276 IsEmpty]: Start isEmpty. Operand 63904 states and 67982 transitions. [2024-10-23 21:33:01,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 980 [2024-10-23 21:33:01,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:33:01,829 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:01,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-23 21:33:01,829 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:33:01,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:33:01,830 INFO L85 PathProgramCache]: Analyzing trace with hash 779529413, now seen corresponding path program 1 times [2024-10-23 21:33:01,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:33:01,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878568281] [2024-10-23 21:33:01,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:33:01,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:33:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:33:03,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 755 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-10-23 21:33:03,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:33:03,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878568281] [2024-10-23 21:33:03,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878568281] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:33:03,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:33:03,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:33:03,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921796358] [2024-10-23 21:33:03,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:33:03,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:33:03,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:33:03,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:33:03,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:03,110 INFO L87 Difference]: Start difference. First operand 63904 states and 67982 transitions. Second operand has 4 states, 4 states have (on average 198.5) internal successors, (794), 4 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:04,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:33:04,936 INFO L93 Difference]: Finished difference Result 121400 states and 129097 transitions. [2024-10-23 21:33:04,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:33:04,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 198.5) internal successors, (794), 4 states have internal predecessors, (794), 0 states have call successors, (0), 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 979 [2024-10-23 21:33:04,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:33:04,939 INFO L225 Difference]: With dead ends: 121400 [2024-10-23 21:33:04,939 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:33:04,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:33:04,970 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 461 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 2017 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:33:04,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 707 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2017 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-23 21:33:04,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:33:04,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:33:04,971 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) [2024-10-23 21:33:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:33:04,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 979 [2024-10-23 21:33:04,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:33:04,972 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:33:04,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 198.5) internal successors, (794), 4 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:33:04,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:33:04,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:33:04,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:33:04,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-23 21:33:04,977 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:33:04,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:33:10,103 WARN L286 SmtUtils]: Spent 5.12s on a formula simplification. DAG size of input: 403 DAG size of output: 486 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-10-23 21:33:11,824 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:33:11,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:33:11 BoogieIcfgContainer [2024-10-23 21:33:11,847 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:33:11,848 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:33:11,848 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:33:11,848 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:33:11,848 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:32:11" (3/4) ... [2024-10-23 21:33:11,850 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:33:11,876 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-23 21:33:11,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:33:11,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:33:11,883 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:33:12,052 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:33:12,053 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:33:12,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:33:12,053 INFO L158 Benchmark]: Toolchain (without parser) took 65151.78ms. Allocated memory was 174.1MB in the beginning and 9.6GB in the end (delta: 9.4GB). Free memory was 110.5MB in the beginning and 6.6GB in the end (delta: -6.5GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2024-10-23 21:33:12,054 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 174.1MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:33:12,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1092.39ms. Allocated memory is still 174.1MB. Free memory was 110.5MB in the beginning and 76.8MB in the end (delta: 33.8MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. [2024-10-23 21:33:12,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 261.64ms. Allocated memory was 174.1MB in the beginning and 260.0MB in the end (delta: 86.0MB). Free memory was 76.8MB in the beginning and 154.2MB in the end (delta: -77.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2024-10-23 21:33:12,054 INFO L158 Benchmark]: Boogie Preprocessor took 498.18ms. Allocated memory is still 260.0MB. Free memory was 154.2MB in the beginning and 151.0MB in the end (delta: 3.3MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. [2024-10-23 21:33:12,055 INFO L158 Benchmark]: RCFGBuilder took 3057.17ms. Allocated memory was 260.0MB in the beginning and 520.1MB in the end (delta: 260.0MB). Free memory was 151.0MB in the beginning and 173.9MB in the end (delta: -22.9MB). Peak memory consumption was 241.6MB. Max. memory is 16.1GB. [2024-10-23 21:33:12,055 INFO L158 Benchmark]: TraceAbstraction took 60029.38ms. Allocated memory was 520.1MB in the beginning and 9.6GB in the end (delta: 9.1GB). Free memory was 173.9MB in the beginning and 6.7GB in the end (delta: -6.5GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2024-10-23 21:33:12,055 INFO L158 Benchmark]: Witness Printer took 205.15ms. Allocated memory is still 9.6GB. Free memory was 6.7GB in the beginning and 6.6GB in the end (delta: 40.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-23 21:33:12,059 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 174.1MB. Free memory is still 139.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1092.39ms. Allocated memory is still 174.1MB. Free memory was 110.5MB in the beginning and 76.8MB in the end (delta: 33.8MB). Peak memory consumption was 75.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 261.64ms. Allocated memory was 174.1MB in the beginning and 260.0MB in the end (delta: 86.0MB). Free memory was 76.8MB in the beginning and 154.2MB in the end (delta: -77.5MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 498.18ms. Allocated memory is still 260.0MB. Free memory was 154.2MB in the beginning and 151.0MB in the end (delta: 3.3MB). Peak memory consumption was 94.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3057.17ms. Allocated memory was 260.0MB in the beginning and 520.1MB in the end (delta: 260.0MB). Free memory was 151.0MB in the beginning and 173.9MB in the end (delta: -22.9MB). Peak memory consumption was 241.6MB. Max. memory is 16.1GB. * TraceAbstraction took 60029.38ms. Allocated memory was 520.1MB in the beginning and 9.6GB in the end (delta: 9.1GB). Free memory was 173.9MB in the beginning and 6.7GB in the end (delta: -6.5GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. * Witness Printer took 205.15ms. Allocated memory is still 9.6GB. Free memory was 6.7GB in the beginning and 6.6GB in the end (delta: 40.9MB). Peak memory consumption was 37.7MB. 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: 207]: 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, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.1s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 34.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10727 SdHoareTripleChecker+Valid, 29.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10727 mSDsluCounter, 11097 SdHoareTripleChecker+Invalid, 24.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1192 mSDsCounter, 6417 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30945 IncrementalHoareTripleChecker+Invalid, 37362 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6417 mSolverCounterUnsat, 9905 mSDtfsCounter, 30945 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1156 GetRequests, 1126 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75075occurred in iteration=16, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 34606 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.6s InterpolantComputationTime, 9523 NumberOfCodeBlocks, 9523 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 10047 ConstructedInterpolants, 0 QuantifiedInterpolants, 25275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 656 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 23 InterpolantComputations, 21 PerfectInterpolantSequences, 9362/9646 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: 2590]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((a21 <= 124) && (a24 == 1)) && (a26 <= 600237)) && (38 <= a28)) || ((((a21 <= 124) && (a26 <= 222)) && (((long long) a14 + 114) <= 0)) && (0 <= ((long long) a14 + 600000)))) || ((((a21 <= 124) && (a24 == 1)) && (((long long) a14 + 84) <= 0)) && (218 <= a26))) || ((((((a21 <= 124) && (a26 <= 600237)) && (a24 == 2)) && (((long long) a14 + 114) <= 0)) && (218 <= a26)) && (0 <= ((long long) a14 + 600000)))) || (((a21 <= 124) && (136 <= a28)) && (a26 <= 124))) || (((((a21 <= 124) && (((long long) a14 + 182) <= 0)) && (a26 <= 600237)) && (136 <= a28)) && (0 <= ((long long) a14 + 600000)))) || (((((a21 <= 124) && (a26 <= 222)) && (a24 == 2)) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113)))) || ((((a21 <= 124) && (a26 <= 124)) && (((long long) a14 + 84) <= 0)) && (0 <= ((long long) a14 + 113)))) || ((a24 == 1) && (((long long) a26 + 68) <= 0))) || ((((((a21 <= 124) && (a26 <= 600237)) && (a24 == 2)) && (a28 <= 134)) && (218 <= a26)) && (0 <= ((long long) a14 + 600000)))) || (((a21 <= 124) && (a28 <= 134)) && (((long long) a26 + 68) <= 0))) || (((((a21 <= 124) && (a26 <= 600237)) && (a24 == 2)) && (a28 <= 134)) && (38 <= a28))) || ((((((a21 <= 124) && (a26 <= 217)) && (a24 == 2)) && (0 <= ((long long) a14 + 83))) && (125 <= a26)) && (38 <= a28))) || ((((a21 <= 124) && (a24 == 1)) && (a26 <= 217)) && (0 <= ((long long) a14 + 83)))) || ((a24 == 1) && (((long long) a14 + 182) <= 0))) || (((a21 <= 124) && (((long long) a26 + 68) <= 0)) && (0 <= ((long long) a14 + 600000)))) || (((((a21 <= 124) && (a26 <= 600237)) && (136 <= a28)) && (a24 == 2)) && (218 <= a26))) || ((((a21 <= 124) && (244792 <= a14)) && (a26 <= 124)) && (a24 == 2))) || ((((a21 <= 124) && (a26 <= 222)) && (136 <= a28)) && (a24 == 2))) || ((((a21 <= 124) && (a24 == 1)) && (a26 <= 600237)) && (218 <= a26))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:33:12,083 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