./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label09.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label09.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 d8f5e7588b052ea6944040fff8b4327aaa68f0ec95b59b9f16a8a13412f9772d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:48:52,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:48:52,979 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:48:52,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:48:52,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:48:52,996 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:48:52,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:48:52,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:48:52,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:48:52,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:48:52,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:48:52,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:48:52,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:48:52,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:48:52,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:48:52,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:48:52,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:48:52,999 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:48:52,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:48:53,000 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:48:53,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:48:53,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:48:53,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:48:53,001 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:48:53,001 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:48:53,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:48:53,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:48:53,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:48:53,002 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:48:53,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:48:53,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:48:53,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:48:53,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:53,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:48:53,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:48:53,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:48:53,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:48:53,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:48:53,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:48:53,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:48:53,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:48:53,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:48:53,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8f5e7588b052ea6944040fff8b4327aaa68f0ec95b59b9f16a8a13412f9772d [2024-11-16 03:48:53,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:48:53,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:48:53,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:48:53,257 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:48:53,257 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:48:53,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label09.c [2024-11-16 03:48:54,405 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:48:54,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:48:54,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label09.c [2024-11-16 03:48:54,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6d290b3/f6cd964d2a1845f480adb643a588e6bd/FLAG6a3e493a7 [2024-11-16 03:48:54,993 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6d290b3/f6cd964d2a1845f480adb643a588e6bd [2024-11-16 03:48:54,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:48:54,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:48:54,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:54,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:48:55,002 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:48:55,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:54" (1/1) ... [2024-11-16 03:48:55,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1745fd5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55, skipping insertion in model container [2024-11-16 03:48:55,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:48:54" (1/1) ... [2024-11-16 03:48:55,055 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:48:55,282 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label09.c[9501,9514] [2024-11-16 03:48:55,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:55,430 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:48:55,463 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label09.c[9501,9514] [2024-11-16 03:48:55,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:48:55,549 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:48:55,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55 WrapperNode [2024-11-16 03:48:55,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:48:55,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:55,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:48:55,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:48:55,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,578 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,646 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-16 03:48:55,647 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:48:55,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:48:55,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:48:55,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:48:55,656 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,667 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,733 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 03:48:55,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,762 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,794 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:48:55,798 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:48:55,799 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:48:55,799 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:48:55,799 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (1/1) ... [2024-11-16 03:48:55,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:48:55,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:48:55,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 03:48:55,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 03:48:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:48:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:48:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:48:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:48:55,962 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:48:55,963 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:48:57,052 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-16 03:48:57,053 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:48:57,070 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:48:57,070 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:48:57,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:57 BoogieIcfgContainer [2024-11-16 03:48:57,071 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:48:57,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:48:57,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:48:57,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:48:57,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:48:54" (1/3) ... [2024-11-16 03:48:57,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2459aded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:57, skipping insertion in model container [2024-11-16 03:48:57,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:48:55" (2/3) ... [2024-11-16 03:48:57,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2459aded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:48:57, skipping insertion in model container [2024-11-16 03:48:57,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:57" (3/3) ... [2024-11-16 03:48:57,079 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label09.c [2024-11-16 03:48:57,091 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:48:57,092 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:48:57,147 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:48:57,153 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;@11d6b385, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:48:57,155 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:48:57,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:57,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 03:48:57,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:57,170 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, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:57,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:57,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:57,175 INFO L85 PathProgramCache]: Analyzing trace with hash 438649822, now seen corresponding path program 1 times [2024-11-16 03:48:57,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:57,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886634511] [2024-11-16 03:48:57,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:57,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:57,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:57,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:57,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886634511] [2024-11-16 03:48:57,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886634511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:57,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:57,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:57,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684776973] [2024-11-16 03:48:57,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:57,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:57,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:57,541 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:58,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:58,398 INFO L93 Difference]: Finished difference Result 767 states and 1351 transitions. [2024-11-16 03:48:58,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:58,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-16 03:48:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:58,412 INFO L225 Difference]: With dead ends: 767 [2024-11-16 03:48:58,412 INFO L226 Difference]: Without dead ends: 416 [2024-11-16 03:48:58,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:58,418 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 162 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:58,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 227 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 03:48:58,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-16 03:48:58,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-11-16 03:48:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.4506024096385541) internal successors, (602), 415 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 602 transitions. [2024-11-16 03:48:58,459 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 602 transitions. Word has length 68 [2024-11-16 03:48:58,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:58,459 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 602 transitions. [2024-11-16 03:48:58,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 2 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 602 transitions. [2024-11-16 03:48:58,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-16 03:48:58,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:58,464 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:58,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:48:58,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:58,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:58,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1777978638, now seen corresponding path program 1 times [2024-11-16 03:48:58,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:58,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702521322] [2024-11-16 03:48:58,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:58,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:58,623 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:58,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:58,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702521322] [2024-11-16 03:48:58,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702521322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:58,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:58,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:48:58,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507166906] [2024-11-16 03:48:58,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:58,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:48:58,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:58,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:48:58,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:58,629 INFO L87 Difference]: Start difference. First operand 416 states and 602 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:59,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:48:59,198 INFO L93 Difference]: Finished difference Result 1219 states and 1771 transitions. [2024-11-16 03:48:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:48:59,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 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 137 [2024-11-16 03:48:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:48:59,205 INFO L225 Difference]: With dead ends: 1219 [2024-11-16 03:48:59,205 INFO L226 Difference]: Without dead ends: 805 [2024-11-16 03:48:59,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:48:59,207 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 145 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:48:59,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 122 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:48:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-16 03:48:59,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 794. [2024-11-16 03:48:59,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.373266078184111) internal successors, (1089), 793 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1089 transitions. [2024-11-16 03:48:59,243 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1089 transitions. Word has length 137 [2024-11-16 03:48:59,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:48:59,244 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1089 transitions. [2024-11-16 03:48:59,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:48:59,244 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1089 transitions. [2024-11-16 03:48:59,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-16 03:48:59,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:48:59,251 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:48:59,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:48:59,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:48:59,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:48:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash 789065648, now seen corresponding path program 1 times [2024-11-16 03:48:59,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:48:59,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769722883] [2024-11-16 03:48:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:48:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:48:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:48:59,653 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:48:59,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:48:59,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769722883] [2024-11-16 03:48:59,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769722883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:48:59,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:48:59,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:48:59,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018828520] [2024-11-16 03:48:59,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:48:59,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:48:59,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:48:59,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:48:59,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:48:59,658 INFO L87 Difference]: Start difference. First operand 794 states and 1089 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:00,625 INFO L93 Difference]: Finished difference Result 2520 states and 3443 transitions. [2024-11-16 03:49:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:49:00,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 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 138 [2024-11-16 03:49:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:00,629 INFO L225 Difference]: With dead ends: 2520 [2024-11-16 03:49:00,630 INFO L226 Difference]: Without dead ends: 1728 [2024-11-16 03:49:00,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:49:00,631 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 488 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 1269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:00,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 225 Invalid, 1269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 03:49:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-16 03:49:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1724. [2024-11-16 03:49:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.2251886244921648) internal successors, (2111), 1723 states have internal predecessors, (2111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2111 transitions. [2024-11-16 03:49:00,657 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2111 transitions. Word has length 138 [2024-11-16 03:49:00,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:00,657 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2111 transitions. [2024-11-16 03:49:00,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:00,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2111 transitions. [2024-11-16 03:49:00,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-16 03:49:00,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:00,663 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, 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] [2024-11-16 03:49:00,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:49:00,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:00,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:00,664 INFO L85 PathProgramCache]: Analyzing trace with hash -48422682, now seen corresponding path program 1 times [2024-11-16 03:49:00,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:00,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984904980] [2024-11-16 03:49:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:00,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:00,847 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:49:00,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984904980] [2024-11-16 03:49:00,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984904980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:00,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:00,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:00,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034182425] [2024-11-16 03:49:00,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:00,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:00,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:00,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:00,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:00,851 INFO L87 Difference]: Start difference. First operand 1724 states and 2111 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:01,447 INFO L93 Difference]: Finished difference Result 4014 states and 5008 transitions. [2024-11-16 03:49:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:01,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 196 [2024-11-16 03:49:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:01,456 INFO L225 Difference]: With dead ends: 4014 [2024-11-16 03:49:01,457 INFO L226 Difference]: Without dead ends: 2477 [2024-11-16 03:49:01,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:01,461 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 139 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:01,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 341 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:49:01,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2477 states. [2024-11-16 03:49:01,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2477 to 2282. [2024-11-16 03:49:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2282 states, 2281 states have (on average 1.2121876370013152) internal successors, (2765), 2281 states have internal predecessors, (2765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 2765 transitions. [2024-11-16 03:49:01,494 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 2765 transitions. Word has length 196 [2024-11-16 03:49:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:01,495 INFO L471 AbstractCegarLoop]: Abstraction has 2282 states and 2765 transitions. [2024-11-16 03:49:01,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:01,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 2765 transitions. [2024-11-16 03:49:01,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-16 03:49:01,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:01,499 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:01,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:49:01,499 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:01,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash -543193560, now seen corresponding path program 1 times [2024-11-16 03:49:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:01,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801207345] [2024-11-16 03:49:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:01,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-16 03:49:01,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:01,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801207345] [2024-11-16 03:49:01,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801207345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:01,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:01,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:01,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539562033] [2024-11-16 03:49:01,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:01,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:01,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:01,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:01,747 INFO L87 Difference]: Start difference. First operand 2282 states and 2765 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:02,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:02,388 INFO L93 Difference]: Finished difference Result 5674 states and 6972 transitions. [2024-11-16 03:49:02,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:02,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 251 [2024-11-16 03:49:02,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:02,397 INFO L225 Difference]: With dead ends: 5674 [2024-11-16 03:49:02,397 INFO L226 Difference]: Without dead ends: 3394 [2024-11-16 03:49:02,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:02,400 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 173 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:02,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 135 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:49:02,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3394 states. [2024-11-16 03:49:02,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3394 to 3394. [2024-11-16 03:49:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3394 states, 3393 states have (on average 1.2010020630710285) internal successors, (4075), 3393 states have internal predecessors, (4075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 4075 transitions. [2024-11-16 03:49:02,456 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 4075 transitions. Word has length 251 [2024-11-16 03:49:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:02,458 INFO L471 AbstractCegarLoop]: Abstraction has 3394 states and 4075 transitions. [2024-11-16 03:49:02,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:02,459 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 4075 transitions. [2024-11-16 03:49:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-16 03:49:02,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:02,463 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:02,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:49:02,464 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:02,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:02,464 INFO L85 PathProgramCache]: Analyzing trace with hash 633586911, now seen corresponding path program 1 times [2024-11-16 03:49:02,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:02,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428682857] [2024-11-16 03:49:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:02,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 03:49:02,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428682857] [2024-11-16 03:49:02,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428682857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:02,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:02,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:02,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977689987] [2024-11-16 03:49:02,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:02,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:02,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:02,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:02,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:02,697 INFO L87 Difference]: Start difference. First operand 3394 states and 4075 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:03,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:03,301 INFO L93 Difference]: Finished difference Result 7541 states and 9079 transitions. [2024-11-16 03:49:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:03,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 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 272 [2024-11-16 03:49:03,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:03,312 INFO L225 Difference]: With dead ends: 7541 [2024-11-16 03:49:03,312 INFO L226 Difference]: Without dead ends: 4149 [2024-11-16 03:49:03,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:03,315 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 136 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:03,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 193 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:49:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4149 states. [2024-11-16 03:49:03,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4149 to 3949. [2024-11-16 03:49:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3949 states, 3948 states have (on average 1.2031408308004052) internal successors, (4750), 3948 states have internal predecessors, (4750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3949 states to 3949 states and 4750 transitions. [2024-11-16 03:49:03,361 INFO L78 Accepts]: Start accepts. Automaton has 3949 states and 4750 transitions. Word has length 272 [2024-11-16 03:49:03,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:03,362 INFO L471 AbstractCegarLoop]: Abstraction has 3949 states and 4750 transitions. [2024-11-16 03:49:03,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3949 states and 4750 transitions. [2024-11-16 03:49:03,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-16 03:49:03,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:03,367 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:03,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:49:03,367 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:03,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:03,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1864456057, now seen corresponding path program 1 times [2024-11-16 03:49:03,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:03,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658949961] [2024-11-16 03:49:03,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:03,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 57 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:49:03,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:03,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658949961] [2024-11-16 03:49:03,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658949961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:49:03,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489953394] [2024-11-16 03:49:03,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:03,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:49:03,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:49:03,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:49:03,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:49:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:03,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:49:03,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:49:04,069 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-16 03:49:04,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:49:04,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489953394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:04,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:49:04,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-16 03:49:04,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579403086] [2024-11-16 03:49:04,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:04,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:04,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:04,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:04,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:49:04,071 INFO L87 Difference]: Start difference. First operand 3949 states and 4750 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) [2024-11-16 03:49:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:04,704 INFO L93 Difference]: Finished difference Result 10116 states and 12338 transitions. [2024-11-16 03:49:04,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:04,705 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 289 [2024-11-16 03:49:04,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:04,719 INFO L225 Difference]: With dead ends: 10116 [2024-11-16 03:49:04,719 INFO L226 Difference]: Without dead ends: 6169 [2024-11-16 03:49:04,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:49:04,724 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 148 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:04,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 144 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:49:04,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2024-11-16 03:49:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 6169. [2024-11-16 03:49:04,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6169 states, 6168 states have (on average 1.2068741893644617) internal successors, (7444), 6168 states have internal predecessors, (7444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6169 states to 6169 states and 7444 transitions. [2024-11-16 03:49:04,806 INFO L78 Accepts]: Start accepts. Automaton has 6169 states and 7444 transitions. Word has length 289 [2024-11-16 03:49:04,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:04,806 INFO L471 AbstractCegarLoop]: Abstraction has 6169 states and 7444 transitions. [2024-11-16 03:49:04,807 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) [2024-11-16 03:49:04,807 INFO L276 IsEmpty]: Start isEmpty. Operand 6169 states and 7444 transitions. [2024-11-16 03:49:04,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-16 03:49:04,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:04,813 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:04,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 03:49:05,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:49:05,018 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:05,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:05,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1853180142, now seen corresponding path program 1 times [2024-11-16 03:49:05,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:05,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194588638] [2024-11-16 03:49:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:05,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:49:05,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:05,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194588638] [2024-11-16 03:49:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194588638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:05,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:05,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:05,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052959792] [2024-11-16 03:49:05,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:05,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:49:05,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:05,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:49:05,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:49:05,293 INFO L87 Difference]: Start difference. First operand 6169 states and 7444 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:06,434 INFO L93 Difference]: Finished difference Result 19213 states and 23483 transitions. [2024-11-16 03:49:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:49:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 330 [2024-11-16 03:49:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:06,469 INFO L225 Difference]: With dead ends: 19213 [2024-11-16 03:49:06,469 INFO L226 Difference]: Without dead ends: 13046 [2024-11-16 03:49:06,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:49:06,475 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 256 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:06,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 95 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 03:49:06,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13046 states. [2024-11-16 03:49:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13046 to 13042. [2024-11-16 03:49:06,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13042 states, 13041 states have (on average 1.2061958438770033) internal successors, (15730), 13041 states have internal predecessors, (15730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13042 states to 13042 states and 15730 transitions. [2024-11-16 03:49:06,619 INFO L78 Accepts]: Start accepts. Automaton has 13042 states and 15730 transitions. Word has length 330 [2024-11-16 03:49:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:06,619 INFO L471 AbstractCegarLoop]: Abstraction has 13042 states and 15730 transitions. [2024-11-16 03:49:06,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 13042 states and 15730 transitions. [2024-11-16 03:49:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-11-16 03:49:06,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:06,631 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:06,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:49:06,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:06,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:06,633 INFO L85 PathProgramCache]: Analyzing trace with hash 951888529, now seen corresponding path program 1 times [2024-11-16 03:49:06,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:06,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197127653] [2024-11-16 03:49:06,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:06,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-16 03:49:06,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:06,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197127653] [2024-11-16 03:49:06,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197127653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:06,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:06,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:06,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881802884] [2024-11-16 03:49:06,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:06,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:06,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:06,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:06,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:06,766 INFO L87 Difference]: Start difference. First operand 13042 states and 15730 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:07,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:07,435 INFO L93 Difference]: Finished difference Result 28853 states and 34933 transitions. [2024-11-16 03:49:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:07,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 331 [2024-11-16 03:49:07,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:07,461 INFO L225 Difference]: With dead ends: 28853 [2024-11-16 03:49:07,461 INFO L226 Difference]: Without dead ends: 16184 [2024-11-16 03:49:07,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:07,475 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 158 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:07,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 349 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:49:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16184 states. [2024-11-16 03:49:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16184 to 15628. [2024-11-16 03:49:07,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15628 states, 15627 states have (on average 1.187432008702886) internal successors, (18556), 15627 states have internal predecessors, (18556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15628 states to 15628 states and 18556 transitions. [2024-11-16 03:49:07,637 INFO L78 Accepts]: Start accepts. Automaton has 15628 states and 18556 transitions. Word has length 331 [2024-11-16 03:49:07,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:07,638 INFO L471 AbstractCegarLoop]: Abstraction has 15628 states and 18556 transitions. [2024-11-16 03:49:07,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:07,638 INFO L276 IsEmpty]: Start isEmpty. Operand 15628 states and 18556 transitions. [2024-11-16 03:49:07,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-16 03:49:07,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:07,648 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:07,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:49:07,648 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:07,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:07,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1565474723, now seen corresponding path program 1 times [2024-11-16 03:49:07,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:07,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571122677] [2024-11-16 03:49:07,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:07,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-16 03:49:07,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:07,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571122677] [2024-11-16 03:49:07,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571122677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:07,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:07,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:07,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81704227] [2024-11-16 03:49:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:07,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:07,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:07,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:07,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:07,829 INFO L87 Difference]: Start difference. First operand 15628 states and 18556 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:08,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:08,365 INFO L93 Difference]: Finished difference Result 29209 states and 34847 transitions. [2024-11-16 03:49:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:08,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 350 [2024-11-16 03:49:08,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:08,385 INFO L225 Difference]: With dead ends: 29209 [2024-11-16 03:49:08,385 INFO L226 Difference]: Without dead ends: 15254 [2024-11-16 03:49:08,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:08,397 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 164 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:08,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 153 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:49:08,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15254 states. [2024-11-16 03:49:08,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15254 to 13215. [2024-11-16 03:49:08,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13215 states, 13214 states have (on average 1.1430301195701529) internal successors, (15104), 13214 states have internal predecessors, (15104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13215 states to 13215 states and 15104 transitions. [2024-11-16 03:49:08,607 INFO L78 Accepts]: Start accepts. Automaton has 13215 states and 15104 transitions. Word has length 350 [2024-11-16 03:49:08,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:08,608 INFO L471 AbstractCegarLoop]: Abstraction has 13215 states and 15104 transitions. [2024-11-16 03:49:08,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:08,608 INFO L276 IsEmpty]: Start isEmpty. Operand 13215 states and 15104 transitions. [2024-11-16 03:49:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-16 03:49:08,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:08,619 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:08,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:49:08,619 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:08,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:08,620 INFO L85 PathProgramCache]: Analyzing trace with hash 2039823526, now seen corresponding path program 1 times [2024-11-16 03:49:08,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:08,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618538708] [2024-11-16 03:49:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:08,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 29 proven. 100 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 03:49:09,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:09,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618538708] [2024-11-16 03:49:09,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618538708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:49:09,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437223785] [2024-11-16 03:49:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:09,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:49:09,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:49:09,097 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:49:09,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:49:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:09,219 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:49:09,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:49:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 269 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-11-16 03:49:09,295 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:49:09,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437223785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:09,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:49:09,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:49:09,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734738817] [2024-11-16 03:49:09,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:09,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:09,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:09,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:09,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:49:09,297 INFO L87 Difference]: Start difference. First operand 13215 states and 15104 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) [2024-11-16 03:49:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:09,868 INFO L93 Difference]: Finished difference Result 28652 states and 32933 transitions. [2024-11-16 03:49:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:09,869 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 353 [2024-11-16 03:49:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:09,886 INFO L225 Difference]: With dead ends: 28652 [2024-11-16 03:49:09,886 INFO L226 Difference]: Without dead ends: 15809 [2024-11-16 03:49:09,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:49:09,897 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 129 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:09,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 375 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:49:09,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15809 states. [2024-11-16 03:49:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15809 to 14879. [2024-11-16 03:49:10,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14879 states, 14878 states have (on average 1.1297217367925796) internal successors, (16808), 14878 states have internal predecessors, (16808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:10,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14879 states to 14879 states and 16808 transitions. [2024-11-16 03:49:10,030 INFO L78 Accepts]: Start accepts. Automaton has 14879 states and 16808 transitions. Word has length 353 [2024-11-16 03:49:10,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:10,030 INFO L471 AbstractCegarLoop]: Abstraction has 14879 states and 16808 transitions. [2024-11-16 03:49:10,030 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) [2024-11-16 03:49:10,030 INFO L276 IsEmpty]: Start isEmpty. Operand 14879 states and 16808 transitions. [2024-11-16 03:49:10,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-16 03:49:10,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:10,040 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:10,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:49:10,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 03:49:10,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:10,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:10,241 INFO L85 PathProgramCache]: Analyzing trace with hash 380368182, now seen corresponding path program 1 times [2024-11-16 03:49:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:10,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641154374] [2024-11-16 03:49:10,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:10,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:11,028 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 196 proven. 153 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-16 03:49:11,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:11,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641154374] [2024-11-16 03:49:11,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641154374] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:49:11,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864681520] [2024-11-16 03:49:11,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:11,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:49:11,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:49:11,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:49:11,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:49:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:11,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:49:11,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:49:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 447 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-16 03:49:11,362 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:49:11,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864681520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:11,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:49:11,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-16 03:49:11,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118183028] [2024-11-16 03:49:11,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:11,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:11,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:11,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:11,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:49:11,363 INFO L87 Difference]: Start difference. First operand 14879 states and 16808 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:11,948 INFO L93 Difference]: Finished difference Result 27533 states and 31133 transitions. [2024-11-16 03:49:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:11,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 373 [2024-11-16 03:49:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:11,963 INFO L225 Difference]: With dead ends: 27533 [2024-11-16 03:49:11,963 INFO L226 Difference]: Without dead ends: 14880 [2024-11-16 03:49:11,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:49:11,970 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 109 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:11,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 382 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:49:11,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14880 states. [2024-11-16 03:49:12,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14880 to 14695. [2024-11-16 03:49:12,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14695 states, 14694 states have (on average 1.1276711582959031) internal successors, (16570), 14694 states have internal predecessors, (16570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14695 states to 14695 states and 16570 transitions. [2024-11-16 03:49:12,135 INFO L78 Accepts]: Start accepts. Automaton has 14695 states and 16570 transitions. Word has length 373 [2024-11-16 03:49:12,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:12,136 INFO L471 AbstractCegarLoop]: Abstraction has 14695 states and 16570 transitions. [2024-11-16 03:49:12,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 14695 states and 16570 transitions. [2024-11-16 03:49:12,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-16 03:49:12,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:12,150 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:12,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:49:12,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:49:12,351 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:12,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:12,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1362842614, now seen corresponding path program 1 times [2024-11-16 03:49:12,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:12,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111160147] [2024-11-16 03:49:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:12,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:12,676 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-16 03:49:12,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:12,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111160147] [2024-11-16 03:49:12,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111160147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:12,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:12,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:49:12,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878039146] [2024-11-16 03:49:12,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:12,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:12,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:12,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:12,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:12,680 INFO L87 Difference]: Start difference. First operand 14695 states and 16570 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) [2024-11-16 03:49:13,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:13,324 INFO L93 Difference]: Finished difference Result 31431 states and 35650 transitions. [2024-11-16 03:49:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:13,324 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 411 [2024-11-16 03:49:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:13,340 INFO L225 Difference]: With dead ends: 31431 [2024-11-16 03:49:13,341 INFO L226 Difference]: Without dead ends: 17108 [2024-11-16 03:49:13,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:13,351 INFO L432 NwaCegarLoop]: 366 mSDtfsCounter, 129 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:13,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 388 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:49:13,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17108 states. [2024-11-16 03:49:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17108 to 15805. [2024-11-16 03:49:13,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15805 states, 15804 states have (on average 1.1178182738547204) internal successors, (17666), 15804 states have internal predecessors, (17666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15805 states to 15805 states and 17666 transitions. [2024-11-16 03:49:13,544 INFO L78 Accepts]: Start accepts. Automaton has 15805 states and 17666 transitions. Word has length 411 [2024-11-16 03:49:13,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:13,545 INFO L471 AbstractCegarLoop]: Abstraction has 15805 states and 17666 transitions. [2024-11-16 03:49:13,545 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) [2024-11-16 03:49:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 15805 states and 17666 transitions. [2024-11-16 03:49:13,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2024-11-16 03:49:13,557 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:49:13,557 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:13,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:49:13,558 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:49:13,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:49:13,558 INFO L85 PathProgramCache]: Analyzing trace with hash 91632196, now seen corresponding path program 1 times [2024-11-16 03:49:13,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:49:13,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654270475] [2024-11-16 03:49:13,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:49:13,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:49:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:49:13,739 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-16 03:49:13,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:49:13,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654270475] [2024-11-16 03:49:13,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654270475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:49:13,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:49:13,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:49:13,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470475415] [2024-11-16 03:49:13,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:49:13,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:49:13,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:49:13,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:49:13,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:13,741 INFO L87 Difference]: Start difference. First operand 15805 states and 17666 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:14,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:49:14,027 INFO L93 Difference]: Finished difference Result 27699 states and 30859 transitions. [2024-11-16 03:49:14,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:49:14,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 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 446 [2024-11-16 03:49:14,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:49:14,029 INFO L225 Difference]: With dead ends: 27699 [2024-11-16 03:49:14,029 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:49:14,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:49:14,038 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 155 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:49:14,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 36 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:49:14,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:49:14,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:49:14,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:49:14,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 446 [2024-11-16 03:49:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:49:14,040 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:49:14,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 2 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:49:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:49:14,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:49:14,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:49:14,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:49:14,045 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:49:14,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:49:14,865 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:49:14,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:49:14 BoogieIcfgContainer [2024-11-16 03:49:14,873 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:49:14,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:49:14,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:49:14,874 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:49:14,874 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:48:57" (3/4) ... [2024-11-16 03:49:14,876 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:49:14,888 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 03:49:14,889 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 03:49:14,890 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:49:14,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:49:15,001 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:49:15,001 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:49:15,001 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:49:15,002 INFO L158 Benchmark]: Toolchain (without parser) took 20005.34ms. Allocated memory was 155.2MB in the beginning and 882.9MB in the end (delta: 727.7MB). Free memory was 74.9MB in the beginning and 426.0MB in the end (delta: -351.1MB). Peak memory consumption was 379.5MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,002 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:49:15,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 552.49ms. Allocated memory is still 155.2MB. Free memory was 74.6MB in the beginning and 83.7MB in the end (delta: -9.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.48ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 66.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,004 INFO L158 Benchmark]: Boogie Preprocessor took 150.45ms. Allocated memory is still 155.2MB. Free memory was 66.1MB in the beginning and 110.0MB in the end (delta: -43.9MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,004 INFO L158 Benchmark]: IcfgBuilder took 1273.16ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 110.0MB in the beginning and 157.9MB in the end (delta: -47.9MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,004 INFO L158 Benchmark]: TraceAbstraction took 17800.27ms. Allocated memory was 237.0MB in the beginning and 882.9MB in the end (delta: 645.9MB). Free memory was 156.9MB in the beginning and 443.8MB in the end (delta: -286.9MB). Peak memory consumption was 559.3MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,004 INFO L158 Benchmark]: Witness Printer took 127.50ms. Allocated memory is still 882.9MB. Free memory was 443.8MB in the beginning and 426.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 03:49:15,005 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 124.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 552.49ms. Allocated memory is still 155.2MB. Free memory was 74.6MB in the beginning and 83.7MB in the end (delta: -9.1MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.48ms. Allocated memory is still 155.2MB. Free memory was 83.7MB in the beginning and 66.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 150.45ms. Allocated memory is still 155.2MB. Free memory was 66.1MB in the beginning and 110.0MB in the end (delta: -43.9MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1273.16ms. Allocated memory was 155.2MB in the beginning and 237.0MB in the end (delta: 81.8MB). Free memory was 110.0MB in the beginning and 157.9MB in the end (delta: -47.9MB). Peak memory consumption was 98.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17800.27ms. Allocated memory was 237.0MB in the beginning and 882.9MB in the end (delta: 645.9MB). Free memory was 156.9MB in the beginning and 443.8MB in the end (delta: -286.9MB). Peak memory consumption was 559.3MB. Max. memory is 16.1GB. * Witness Printer took 127.50ms. Allocated memory is still 882.9MB. Free memory was 443.8MB in the beginning and 426.0MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. 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: 214]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 286 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.9s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 9.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2491 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2491 mSDsluCounter, 3165 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 361 mSDsCounter, 1477 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8539 IncrementalHoareTripleChecker+Invalid, 10016 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1477 mSolverCounterUnsat, 2804 mSDtfsCounter, 8539 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1059 GetRequests, 1029 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15805occurred in iteration=13, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 5427 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 4960 NumberOfCodeBlocks, 4960 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4943 ConstructedInterpolants, 0 QuantifiedInterpolants, 19149 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1371 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 17 InterpolantComputations, 14 PerfectInterpolantSequences, 3980/4381 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:49:15,029 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