./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label56.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label56.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 bac94640e4b1ca65f803532eef7d71e2867b8956b5651dd4d9133fab907f3070 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 17:23:45,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 17:23:45,883 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 17:23:45,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 17:23:45,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 17:23:45,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 17:23:45,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 17:23:45,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 17:23:45,913 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 17:23:45,914 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 17:23:45,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 17:23:45,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 17:23:45,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 17:23:45,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 17:23:45,916 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 17:23:45,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 17:23:45,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 17:23:45,916 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 17:23:45,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 17:23:45,917 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 17:23:45,920 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 17:23:45,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 17:23:45,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 17:23:45,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 17:23:45,923 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 17:23:45,923 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 17:23:45,924 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 17:23:45,924 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 17:23:45,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 17:23:45,924 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 17:23:45,925 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 17:23:45,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 17:23:45,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 17:23:45,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 17:23:45,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 17:23:45,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 17:23:45,926 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 17:23:45,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 17:23:45,927 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 17:23:45,927 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 17:23:45,928 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 17:23:45,928 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 17:23:45,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bac94640e4b1ca65f803532eef7d71e2867b8956b5651dd4d9133fab907f3070 [2024-11-19 17:23:46,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 17:23:46,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 17:23:46,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 17:23:46,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 17:23:46,160 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 17:23:46,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label56.c [2024-11-19 17:23:47,469 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 17:23:47,763 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 17:23:47,765 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem03_label56.c [2024-11-19 17:23:47,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/551c5b66a/4cfe92ac51ba4305a94813577ede43d6/FLAGe0c339411 [2024-11-19 17:23:47,799 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/551c5b66a/4cfe92ac51ba4305a94813577ede43d6 [2024-11-19 17:23:47,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 17:23:47,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 17:23:47,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 17:23:47,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 17:23:47,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 17:23:47,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:23:47" (1/1) ... [2024-11-19 17:23:47,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1b8a47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:47, skipping insertion in model container [2024-11-19 17:23:47,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:23:47" (1/1) ... [2024-11-19 17:23:47,873 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 17:23:48,297 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/Problem03_label56.c[57575,57588] [2024-11-19 17:23:48,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 17:23:48,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 17:23:48,525 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/Problem03_label56.c[57575,57588] [2024-11-19 17:23:48,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 17:23:48,587 INFO L204 MainTranslator]: Completed translation [2024-11-19 17:23:48,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48 WrapperNode [2024-11-19 17:23:48,587 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 17:23:48,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 17:23:48,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 17:23:48,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 17:23:48,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,696 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1772 [2024-11-19 17:23:48,697 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 17:23:48,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 17:23:48,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 17:23:48,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 17:23:48,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,713 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,750 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]. [2024-11-19 17:23:48,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,819 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 17:23:48,829 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 17:23:48,829 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 17:23:48,829 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 17:23:48,830 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (1/1) ... [2024-11-19 17:23:48,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 17:23:48,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:23:48,859 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) [2024-11-19 17:23:48,862 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 [2024-11-19 17:23:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 17:23:48,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 17:23:48,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 17:23:48,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 17:23:48,962 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 17:23:48,964 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 17:23:50,317 INFO L? ?]: Removed 147 outVars from TransFormulas that were not future-live. [2024-11-19 17:23:50,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 17:23:50,336 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 17:23:50,336 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 17:23:50,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:50 BoogieIcfgContainer [2024-11-19 17:23:50,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 17:23:50,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 17:23:50,339 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 17:23:50,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 17:23:50,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:23:47" (1/3) ... [2024-11-19 17:23:50,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56770de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:23:50, skipping insertion in model container [2024-11-19 17:23:50,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:23:48" (2/3) ... [2024-11-19 17:23:50,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56770de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:23:50, skipping insertion in model container [2024-11-19 17:23:50,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:50" (3/3) ... [2024-11-19 17:23:50,344 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label56.c [2024-11-19 17:23:50,357 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 17:23:50,357 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 17:23:50,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 17:23:50,420 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;@44e94a4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 17:23:50,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 17:23:50,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:50,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-19 17:23:50,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:50,439 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:50,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:50,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:50,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1827749397, now seen corresponding path program 1 times [2024-11-19 17:23:50,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:50,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57084043] [2024-11-19 17:23:50,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:50,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:51,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:51,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:51,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57084043] [2024-11-19 17:23:51,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57084043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:51,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:23:51,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:23:51,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619186580] [2024-11-19 17:23:51,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:51,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:51,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:51,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:23:51,401 INFO L87 Difference]: Start difference. First operand has 302 states, 300 states have (on average 1.73) internal successors, (519), 301 states have internal predecessors, (519), 0 states have call successors, (0), 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 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:52,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:52,359 INFO L93 Difference]: Finished difference Result 860 states and 1507 transitions. [2024-11-19 17:23:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:52,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-19 17:23:52,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:52,372 INFO L225 Difference]: With dead ends: 860 [2024-11-19 17:23:52,372 INFO L226 Difference]: Without dead ends: 465 [2024-11-19 17:23:52,376 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 [2024-11-19 17:23:52,379 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 131 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:52,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 170 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 17:23:52,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-19 17:23:52,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 459. [2024-11-19 17:23:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.556768558951965) internal successors, (713), 458 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 713 transitions. [2024-11-19 17:23:52,450 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 713 transitions. Word has length 173 [2024-11-19 17:23:52,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:52,451 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 713 transitions. [2024-11-19 17:23:52,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:52,451 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 713 transitions. [2024-11-19 17:23:52,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-19 17:23:52,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:52,456 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:52,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 17:23:52,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:52,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:52,458 INFO L85 PathProgramCache]: Analyzing trace with hash -719650132, now seen corresponding path program 1 times [2024-11-19 17:23:52,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:52,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241198683] [2024-11-19 17:23:52,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:52,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:52,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:52,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241198683] [2024-11-19 17:23:52,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241198683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:52,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:23:52,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:23:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793646568] [2024-11-19 17:23:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:52,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:52,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:52,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:52,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:23:52,626 INFO L87 Difference]: Start difference. First operand 459 states and 713 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:53,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:53,253 INFO L93 Difference]: Finished difference Result 1343 states and 2102 transitions. [2024-11-19 17:23:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:53,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2024-11-19 17:23:53,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:53,261 INFO L225 Difference]: With dead ends: 1343 [2024-11-19 17:23:53,261 INFO L226 Difference]: Without dead ends: 886 [2024-11-19 17:23:53,262 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 [2024-11-19 17:23:53,263 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 249 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:53,263 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 89 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 17:23:53,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2024-11-19 17:23:53,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 868. [2024-11-19 17:23:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.5340253748558246) internal successors, (1330), 867 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1330 transitions. [2024-11-19 17:23:53,290 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1330 transitions. Word has length 181 [2024-11-19 17:23:53,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:53,290 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1330 transitions. [2024-11-19 17:23:53,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 2 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1330 transitions. [2024-11-19 17:23:53,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-19 17:23:53,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:53,297 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:53,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 17:23:53,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:53,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash -321719515, now seen corresponding path program 1 times [2024-11-19 17:23:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177361093] [2024-11-19 17:23:53,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:53,465 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:53,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:53,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177361093] [2024-11-19 17:23:53,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177361093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:53,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:23:53,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:23:53,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93906714] [2024-11-19 17:23:53,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:53,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:53,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:53,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:53,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:23:53,467 INFO L87 Difference]: Start difference. First operand 868 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:54,138 INFO L93 Difference]: Finished difference Result 2573 states and 3946 transitions. [2024-11-19 17:23:54,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 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 182 [2024-11-19 17:23:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:54,144 INFO L225 Difference]: With dead ends: 2573 [2024-11-19 17:23:54,144 INFO L226 Difference]: Without dead ends: 1707 [2024-11-19 17:23:54,145 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 [2024-11-19 17:23:54,146 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 255 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:54,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 137 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 17:23:54,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1707 states. [2024-11-19 17:23:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1707 to 1704. [2024-11-19 17:23:54,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1703 states have (on average 1.4486200822078685) internal successors, (2467), 1703 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2467 transitions. [2024-11-19 17:23:54,176 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2467 transitions. Word has length 182 [2024-11-19 17:23:54,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:54,176 INFO L471 AbstractCegarLoop]: Abstraction has 1704 states and 2467 transitions. [2024-11-19 17:23:54,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 2 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2467 transitions. [2024-11-19 17:23:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-19 17:23:54,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:54,179 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:54,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 17:23:54,180 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:54,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:54,180 INFO L85 PathProgramCache]: Analyzing trace with hash 447712849, now seen corresponding path program 1 times [2024-11-19 17:23:54,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:54,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576512710] [2024-11-19 17:23:54,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:54,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:54,431 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:54,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:54,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576512710] [2024-11-19 17:23:54,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576512710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:54,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:23:54,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:23:54,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883081419] [2024-11-19 17:23:54,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:54,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:54,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:54,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:54,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:23:54,435 INFO L87 Difference]: Start difference. First operand 1704 states and 2467 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 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) [2024-11-19 17:23:55,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:55,107 INFO L93 Difference]: Finished difference Result 4238 states and 6117 transitions. [2024-11-19 17:23:55,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:55,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 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 183 [2024-11-19 17:23:55,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:55,114 INFO L225 Difference]: With dead ends: 4238 [2024-11-19 17:23:55,114 INFO L226 Difference]: Without dead ends: 2536 [2024-11-19 17:23:55,116 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 [2024-11-19 17:23:55,117 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 236 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:55,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 112 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 17:23:55,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2024-11-19 17:23:55,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2535. [2024-11-19 17:23:55,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2534 states have (on average 1.4183109707971586) internal successors, (3594), 2534 states have internal predecessors, (3594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:55,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 3594 transitions. [2024-11-19 17:23:55,149 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 3594 transitions. Word has length 183 [2024-11-19 17:23:55,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:55,149 INFO L471 AbstractCegarLoop]: Abstraction has 2535 states and 3594 transitions. [2024-11-19 17:23:55,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 2 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) [2024-11-19 17:23:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 3594 transitions. [2024-11-19 17:23:55,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-19 17:23:55,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:55,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:55,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 17:23:55,154 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:55,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:55,154 INFO L85 PathProgramCache]: Analyzing trace with hash 620298465, now seen corresponding path program 1 times [2024-11-19 17:23:55,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:55,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623302877] [2024-11-19 17:23:55,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:55,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:55,487 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:55,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:55,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623302877] [2024-11-19 17:23:55,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623302877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:23:55,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278084476] [2024-11-19 17:23:55,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:55,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:23:55,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:23:55,491 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) [2024-11-19 17:23:55,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 17:23:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:55,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 17:23:55,612 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:23:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 17:23:55,814 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:23:55,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278084476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:55,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:23:55,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-19 17:23:55,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546983190] [2024-11-19 17:23:55,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:55,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:55,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:55,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:55,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:23:55,816 INFO L87 Difference]: Start difference. First operand 2535 states and 3594 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) [2024-11-19 17:23:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:56,533 INFO L93 Difference]: Finished difference Result 7507 states and 10649 transitions. [2024-11-19 17:23:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:56,533 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 188 [2024-11-19 17:23:56,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:56,548 INFO L225 Difference]: With dead ends: 7507 [2024-11-19 17:23:56,548 INFO L226 Difference]: Without dead ends: 4974 [2024-11-19 17:23:56,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:23:56,554 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 62 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:56,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 423 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 17:23:56,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4974 states. [2024-11-19 17:23:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4974 to 4971. [2024-11-19 17:23:56,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4971 states, 4970 states have (on average 1.26841046277666) internal successors, (6304), 4970 states have internal predecessors, (6304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4971 states to 4971 states and 6304 transitions. [2024-11-19 17:23:56,624 INFO L78 Accepts]: Start accepts. Automaton has 4971 states and 6304 transitions. Word has length 188 [2024-11-19 17:23:56,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:56,625 INFO L471 AbstractCegarLoop]: Abstraction has 4971 states and 6304 transitions. [2024-11-19 17:23:56,625 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) [2024-11-19 17:23:56,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4971 states and 6304 transitions. [2024-11-19 17:23:56,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-19 17:23:56,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:56,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:56,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 17:23:56,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:23:56,833 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:56,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:56,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1619589606, now seen corresponding path program 1 times [2024-11-19 17:23:56,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:56,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471239388] [2024-11-19 17:23:56,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:56,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:56,931 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:56,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:56,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471239388] [2024-11-19 17:23:56,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471239388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:56,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:23:56,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 17:23:56,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241164946] [2024-11-19 17:23:56,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:56,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:56,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:56,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:23:56,935 INFO L87 Difference]: Start difference. First operand 4971 states and 6304 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:57,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:57,659 INFO L93 Difference]: Finished difference Result 14625 states and 18571 transitions. [2024-11-19 17:23:57,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:57,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2024-11-19 17:23:57,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:57,684 INFO L225 Difference]: With dead ends: 14625 [2024-11-19 17:23:57,684 INFO L226 Difference]: Without dead ends: 9656 [2024-11-19 17:23:57,691 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 [2024-11-19 17:23:57,692 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 233 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:57,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 185 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 17:23:57,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9656 states. [2024-11-19 17:23:57,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9656 to 9653. [2024-11-19 17:23:57,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9653 states, 9652 states have (on average 1.2318690426854537) internal successors, (11890), 9652 states have internal predecessors, (11890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9653 states to 9653 states and 11890 transitions. [2024-11-19 17:23:57,827 INFO L78 Accepts]: Start accepts. Automaton has 9653 states and 11890 transitions. Word has length 193 [2024-11-19 17:23:57,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:57,827 INFO L471 AbstractCegarLoop]: Abstraction has 9653 states and 11890 transitions. [2024-11-19 17:23:57,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:57,828 INFO L276 IsEmpty]: Start isEmpty. Operand 9653 states and 11890 transitions. [2024-11-19 17:23:57,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-19 17:23:57,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:57,840 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:57,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 17:23:57,841 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:57,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1707533785, now seen corresponding path program 1 times [2024-11-19 17:23:57,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:57,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642456106] [2024-11-19 17:23:57,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:57,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:23:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642456106] [2024-11-19 17:23:58,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642456106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:23:58,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350351743] [2024-11-19 17:23:58,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:58,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:23:58,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:23:58,224 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) [2024-11-19 17:23:58,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 17:23:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:58,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 17:23:58,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:23:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 17:23:58,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:23:58,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350351743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:58,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:23:58,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-19 17:23:58,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422898843] [2024-11-19 17:23:58,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:58,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:58,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:58,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:58,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:23:58,559 INFO L87 Difference]: Start difference. First operand 9653 states and 11890 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:59,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:23:59,201 INFO L93 Difference]: Finished difference Result 19330 states and 23829 transitions. [2024-11-19 17:23:59,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:23:59,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 221 [2024-11-19 17:23:59,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:23:59,225 INFO L225 Difference]: With dead ends: 19330 [2024-11-19 17:23:59,225 INFO L226 Difference]: Without dead ends: 9679 [2024-11-19 17:23:59,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:23:59,236 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 65 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 17:23:59,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 351 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 17:23:59,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9679 states. [2024-11-19 17:23:59,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9679 to 9653. [2024-11-19 17:23:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9653 states, 9652 states have (on average 1.2199544135930378) internal successors, (11775), 9652 states have internal predecessors, (11775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:59,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9653 states to 9653 states and 11775 transitions. [2024-11-19 17:23:59,366 INFO L78 Accepts]: Start accepts. Automaton has 9653 states and 11775 transitions. Word has length 221 [2024-11-19 17:23:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:23:59,366 INFO L471 AbstractCegarLoop]: Abstraction has 9653 states and 11775 transitions. [2024-11-19 17:23:59,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:23:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9653 states and 11775 transitions. [2024-11-19 17:23:59,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-19 17:23:59,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:23:59,379 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:23:59,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 17:23:59,579 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,SelfDestructingSolverStorable6 [2024-11-19 17:23:59,580 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:23:59,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:23:59,580 INFO L85 PathProgramCache]: Analyzing trace with hash 812809795, now seen corresponding path program 1 times [2024-11-19 17:23:59,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:23:59,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777699426] [2024-11-19 17:23:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:23:59,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:23:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:23:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 17:23:59,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:23:59,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777699426] [2024-11-19 17:23:59,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777699426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:23:59,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:23:59,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 17:23:59,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753675623] [2024-11-19 17:23:59,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:23:59,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:23:59,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:23:59,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:23:59,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:23:59,776 INFO L87 Difference]: Start difference. First operand 9653 states and 11775 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:00,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:00,416 INFO L93 Difference]: Finished difference Result 23567 states and 29201 transitions. [2024-11-19 17:24:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:00,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 227 [2024-11-19 17:24:00,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:00,439 INFO L225 Difference]: With dead ends: 23567 [2024-11-19 17:24:00,439 INFO L226 Difference]: Without dead ends: 13916 [2024-11-19 17:24:00,449 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 [2024-11-19 17:24:00,449 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 215 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:00,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 201 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 17:24:00,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13916 states. [2024-11-19 17:24:00,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13916 to 13916. [2024-11-19 17:24:00,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13916 states, 13915 states have (on average 1.182608695652174) internal successors, (16456), 13915 states have internal predecessors, (16456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:00,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13916 states to 13916 states and 16456 transitions. [2024-11-19 17:24:00,613 INFO L78 Accepts]: Start accepts. Automaton has 13916 states and 16456 transitions. Word has length 227 [2024-11-19 17:24:00,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:00,614 INFO L471 AbstractCegarLoop]: Abstraction has 13916 states and 16456 transitions. [2024-11-19 17:24:00,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:00,616 INFO L276 IsEmpty]: Start isEmpty. Operand 13916 states and 16456 transitions. [2024-11-19 17:24:00,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-19 17:24:00,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:00,631 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:00,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 17:24:00,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:00,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1180890053, now seen corresponding path program 1 times [2024-11-19 17:24:00,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:00,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180438880] [2024-11-19 17:24:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:00,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 61 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 17:24:00,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:00,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180438880] [2024-11-19 17:24:00,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180438880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:24:00,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468011683] [2024-11-19 17:24:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:00,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:00,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:24:00,976 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) [2024-11-19 17:24:00,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 17:24:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:01,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 17:24:01,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:24:01,288 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 17:24:01,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:24:01,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468011683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:01,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:24:01,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-19 17:24:01,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136080871] [2024-11-19 17:24:01,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:01,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:24:01,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:01,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:24:01,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:01,290 INFO L87 Difference]: Start difference. First operand 13916 states and 16456 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:01,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:01,839 INFO L93 Difference]: Finished difference Result 27833 states and 32915 transitions. [2024-11-19 17:24:01,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:01,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2024-11-19 17:24:01,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:01,858 INFO L225 Difference]: With dead ends: 27833 [2024-11-19 17:24:01,858 INFO L226 Difference]: Without dead ends: 13919 [2024-11-19 17:24:01,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:01,872 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 98 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:01,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 342 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 17:24:01,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13919 states. [2024-11-19 17:24:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13919 to 13916. [2024-11-19 17:24:02,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13916 states, 13915 states have (on average 1.1627739849083722) internal successors, (16180), 13915 states have internal predecessors, (16180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13916 states to 13916 states and 16180 transitions. [2024-11-19 17:24:02,060 INFO L78 Accepts]: Start accepts. Automaton has 13916 states and 16180 transitions. Word has length 231 [2024-11-19 17:24:02,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:02,060 INFO L471 AbstractCegarLoop]: Abstraction has 13916 states and 16180 transitions. [2024-11-19 17:24:02,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:02,061 INFO L276 IsEmpty]: Start isEmpty. Operand 13916 states and 16180 transitions. [2024-11-19 17:24:02,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-19 17:24:02,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:02,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:02,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 17:24:02,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:02,274 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:02,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:02,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1454619846, now seen corresponding path program 1 times [2024-11-19 17:24:02,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:02,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221913884] [2024-11-19 17:24:02,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:24:02,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:02,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221913884] [2024-11-19 17:24:02,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221913884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:02,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:24:02,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:24:02,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017041801] [2024-11-19 17:24:02,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:02,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:24:02,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:24:02,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:24:02,612 INFO L87 Difference]: Start difference. First operand 13916 states and 16180 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:03,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:03,256 INFO L93 Difference]: Finished difference Result 34585 states and 40094 transitions. [2024-11-19 17:24:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:03,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 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 236 [2024-11-19 17:24:03,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:03,281 INFO L225 Difference]: With dead ends: 34585 [2024-11-19 17:24:03,281 INFO L226 Difference]: Without dead ends: 20671 [2024-11-19 17:24:03,296 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 [2024-11-19 17:24:03,297 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 178 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:03,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 238 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 17:24:03,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20671 states. [2024-11-19 17:24:03,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20671 to 20657. [2024-11-19 17:24:03,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20657 states, 20656 states have (on average 1.1499806351665376) internal successors, (23754), 20656 states have internal predecessors, (23754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20657 states to 20657 states and 23754 transitions. [2024-11-19 17:24:03,501 INFO L78 Accepts]: Start accepts. Automaton has 20657 states and 23754 transitions. Word has length 236 [2024-11-19 17:24:03,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:03,501 INFO L471 AbstractCegarLoop]: Abstraction has 20657 states and 23754 transitions. [2024-11-19 17:24:03,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 2 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 20657 states and 23754 transitions. [2024-11-19 17:24:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-19 17:24:03,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:03,520 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:03,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 17:24:03,521 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:03,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:03,521 INFO L85 PathProgramCache]: Analyzing trace with hash 726117733, now seen corresponding path program 1 times [2024-11-19 17:24:03,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:03,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138153693] [2024-11-19 17:24:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:03,852 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:24:03,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:03,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138153693] [2024-11-19 17:24:03,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138153693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:24:03,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071517999] [2024-11-19 17:24:03,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:03,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:03,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:24:03,854 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 17:24:03,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 17:24:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:04,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 17:24:04,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:24:04,302 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:24:04,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:24:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1071517999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:04,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:24:04,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-19 17:24:04,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813172885] [2024-11-19 17:24:04,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:04,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:24:04,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:24:04,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:04,304 INFO L87 Difference]: Start difference. First operand 20657 states and 23754 transitions. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:04,977 INFO L93 Difference]: Finished difference Result 45172 states and 51734 transitions. [2024-11-19 17:24:04,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2024-11-19 17:24:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:05,015 INFO L225 Difference]: With dead ends: 45172 [2024-11-19 17:24:05,015 INFO L226 Difference]: Without dead ends: 24517 [2024-11-19 17:24:05,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:05,037 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 149 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:05,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 199 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 17:24:05,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24517 states. [2024-11-19 17:24:05,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24517 to 24514. [2024-11-19 17:24:05,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24514 states, 24513 states have (on average 1.1375188675396728) internal successors, (27884), 24513 states have internal predecessors, (27884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:05,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24514 states to 24514 states and 27884 transitions. [2024-11-19 17:24:05,344 INFO L78 Accepts]: Start accepts. Automaton has 24514 states and 27884 transitions. Word has length 243 [2024-11-19 17:24:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:05,344 INFO L471 AbstractCegarLoop]: Abstraction has 24514 states and 27884 transitions. [2024-11-19 17:24:05,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:05,344 INFO L276 IsEmpty]: Start isEmpty. Operand 24514 states and 27884 transitions. [2024-11-19 17:24:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-19 17:24:05,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:05,365 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:05,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 17:24:05,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:05,565 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:05,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:05,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1121816472, now seen corresponding path program 1 times [2024-11-19 17:24:05,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:05,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458691622] [2024-11-19 17:24:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:05,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:05,833 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 86 proven. 6 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-19 17:24:05,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:05,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458691622] [2024-11-19 17:24:05,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458691622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:24:05,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744931610] [2024-11-19 17:24:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:05,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:05,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:24:05,836 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 17:24:05,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 17:24:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:05,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 17:24:05,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:24:06,102 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-19 17:24:06,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:24:06,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744931610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:06,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:24:06,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-19 17:24:06,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640088167] [2024-11-19 17:24:06,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:06,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:24:06,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:06,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:24:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:06,104 INFO L87 Difference]: Start difference. First operand 24514 states and 27884 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:06,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:06,722 INFO L93 Difference]: Finished difference Result 62670 states and 71625 transitions. [2024-11-19 17:24:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:06,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 261 [2024-11-19 17:24:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:06,766 INFO L225 Difference]: With dead ends: 62670 [2024-11-19 17:24:06,766 INFO L226 Difference]: Without dead ends: 38361 [2024-11-19 17:24:06,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:06,787 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 76 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:06,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 374 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 17:24:06,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38361 states. [2024-11-19 17:24:07,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38361 to 38318. [2024-11-19 17:24:07,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38318 states, 38317 states have (on average 1.1356839000965628) internal successors, (43516), 38317 states have internal predecessors, (43516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38318 states to 38318 states and 43516 transitions. [2024-11-19 17:24:07,252 INFO L78 Accepts]: Start accepts. Automaton has 38318 states and 43516 transitions. Word has length 261 [2024-11-19 17:24:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:07,253 INFO L471 AbstractCegarLoop]: Abstraction has 38318 states and 43516 transitions. [2024-11-19 17:24:07,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 38318 states and 43516 transitions. [2024-11-19 17:24:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-19 17:24:07,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:07,283 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:07,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 17:24:07,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-19 17:24:07,484 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:07,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:07,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1448083692, now seen corresponding path program 1 times [2024-11-19 17:24:07,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:07,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921185700] [2024-11-19 17:24:07,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:07,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:07,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 17:24:07,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:07,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921185700] [2024-11-19 17:24:07,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921185700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:07,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:24:07,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:24:07,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376480365] [2024-11-19 17:24:07,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:07,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:24:07,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:24:07,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:24:07,627 INFO L87 Difference]: Start difference. First operand 38318 states and 43516 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:08,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:08,058 INFO L93 Difference]: Finished difference Result 70890 states and 80502 transitions. [2024-11-19 17:24:08,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:08,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-19 17:24:08,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:08,095 INFO L225 Difference]: With dead ends: 70890 [2024-11-19 17:24:08,095 INFO L226 Difference]: Without dead ends: 32777 [2024-11-19 17:24:08,120 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 [2024-11-19 17:24:08,120 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 247 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:08,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 31 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 17:24:08,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32777 states. [2024-11-19 17:24:08,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32777 to 32777. [2024-11-19 17:24:08,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32777 states, 32776 states have (on average 1.1282645838418355) internal successors, (36980), 32776 states have internal predecessors, (36980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32777 states to 32777 states and 36980 transitions. [2024-11-19 17:24:08,764 INFO L78 Accepts]: Start accepts. Automaton has 32777 states and 36980 transitions. Word has length 273 [2024-11-19 17:24:08,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:08,764 INFO L471 AbstractCegarLoop]: Abstraction has 32777 states and 36980 transitions. [2024-11-19 17:24:08,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 2 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:08,765 INFO L276 IsEmpty]: Start isEmpty. Operand 32777 states and 36980 transitions. [2024-11-19 17:24:08,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-19 17:24:08,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:08,792 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:08,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 17:24:08,792 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:08,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1548255414, now seen corresponding path program 1 times [2024-11-19 17:24:08,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:08,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227944613] [2024-11-19 17:24:08,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:08,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:09,151 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 102 proven. 6 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-19 17:24:09,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227944613] [2024-11-19 17:24:09,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227944613] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:24:09,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772243177] [2024-11-19 17:24:09,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:09,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:09,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:24:09,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 17:24:09,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 17:24:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:09,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 17:24:09,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:24:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-19 17:24:09,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:24:09,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772243177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:09,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:24:09,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-19 17:24:09,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048558203] [2024-11-19 17:24:09,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:09,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 17:24:09,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 17:24:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 17:24:09,405 INFO L87 Difference]: Start difference. First operand 32777 states and 36980 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:10,314 INFO L93 Difference]: Finished difference Result 111077 states and 125236 transitions. [2024-11-19 17:24:10,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 17:24:10,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 283 [2024-11-19 17:24:10,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:10,411 INFO L225 Difference]: With dead ends: 111077 [2024-11-19 17:24:10,412 INFO L226 Difference]: Without dead ends: 78505 [2024-11-19 17:24:10,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 17:24:10,451 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 720 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:10,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 340 Invalid, 866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 17:24:10,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78505 states. [2024-11-19 17:24:11,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78505 to 78500. [2024-11-19 17:24:11,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78500 states, 78499 states have (on average 1.1201034408081632) internal successors, (87927), 78499 states have internal predecessors, (87927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:11,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78500 states to 78500 states and 87927 transitions. [2024-11-19 17:24:11,663 INFO L78 Accepts]: Start accepts. Automaton has 78500 states and 87927 transitions. Word has length 283 [2024-11-19 17:24:11,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:11,663 INFO L471 AbstractCegarLoop]: Abstraction has 78500 states and 87927 transitions. [2024-11-19 17:24:11,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:11,663 INFO L276 IsEmpty]: Start isEmpty. Operand 78500 states and 87927 transitions. [2024-11-19 17:24:11,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-19 17:24:11,691 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:24:11,691 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:11,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 17:24:11,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:11,892 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:24:11,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:24:11,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1453698793, now seen corresponding path program 1 times [2024-11-19 17:24:11,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:24:11,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906790719] [2024-11-19 17:24:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:11,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:24:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:12,345 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-19 17:24:12,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:24:12,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906790719] [2024-11-19 17:24:12,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906790719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 17:24:12,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659056293] [2024-11-19 17:24:12,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:24:12,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:12,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:24:12,350 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 17:24:12,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 17:24:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:24:12,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 17:24:12,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 17:24:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-19 17:24:12,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 17:24:12,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659056293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:24:12,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 17:24:12,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-19 17:24:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242581715] [2024-11-19 17:24:12,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:24:12,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:24:12,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:24:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:24:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:12,570 INFO L87 Difference]: Start difference. First operand 78500 states and 87927 transitions. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:13,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:24:13,281 INFO L93 Difference]: Finished difference Result 139321 states and 156218 transitions. [2024-11-19 17:24:13,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:24:13,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2024-11-19 17:24:13,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:24:13,283 INFO L225 Difference]: With dead ends: 139321 [2024-11-19 17:24:13,283 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 17:24:13,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 17:24:13,447 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 215 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 17:24:13,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 301 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 17:24:13,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 17:24:13,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 17:24:13,447 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) [2024-11-19 17:24:13,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 17:24:13,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 286 [2024-11-19 17:24:13,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:24:13,449 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 17:24:13,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:24:13,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 17:24:13,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 17:24:13,456 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 17:24:13,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 17:24:13,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 17:24:13,661 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:24:13,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 17:24:16,223 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 17:24:16,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:24:16 BoogieIcfgContainer [2024-11-19 17:24:16,239 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 17:24:16,240 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 17:24:16,240 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 17:24:16,240 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 17:24:16,240 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:50" (3/4) ... [2024-11-19 17:24:16,243 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 17:24:16,265 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-19 17:24:16,266 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 17:24:16,268 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 17:24:16,269 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 17:24:16,423 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 17:24:16,423 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 17:24:16,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 17:24:16,424 INFO L158 Benchmark]: Toolchain (without parser) took 28620.23ms. Allocated memory was 140.5MB in the beginning and 5.9GB in the end (delta: 5.8GB). Free memory was 108.5MB in the beginning and 5.0GB in the end (delta: -4.9GB). Peak memory consumption was 909.2MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,424 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 140.5MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 17:24:16,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.33ms. Allocated memory is still 140.5MB. Free memory was 108.1MB in the beginning and 103.1MB in the end (delta: 5.0MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.08ms. Allocated memory is still 140.5MB. Free memory was 103.1MB in the beginning and 87.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,424 INFO L158 Benchmark]: Boogie Preprocessor took 130.75ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 75.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,424 INFO L158 Benchmark]: RCFGBuilder took 1507.84ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 75.3MB in the beginning and 117.1MB in the end (delta: -41.8MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,425 INFO L158 Benchmark]: TraceAbstraction took 25900.89ms. Allocated memory was 209.7MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 117.1MB in the beginning and 5.0GB in the end (delta: -4.9GB). Peak memory consumption was 974.8MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,425 INFO L158 Benchmark]: Witness Printer took 183.42ms. Allocated memory is still 5.9GB. Free memory was 5.0GB in the beginning and 5.0GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-19 17:24:16,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 140.5MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.33ms. Allocated memory is still 140.5MB. Free memory was 108.1MB in the beginning and 103.1MB in the end (delta: 5.0MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.08ms. Allocated memory is still 140.5MB. Free memory was 103.1MB in the beginning and 87.9MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 130.75ms. Allocated memory is still 140.5MB. Free memory was 87.9MB in the beginning and 75.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 1507.84ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 75.3MB in the beginning and 117.1MB in the end (delta: -41.8MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * TraceAbstraction took 25900.89ms. Allocated memory was 209.7MB in the beginning and 5.9GB in the end (delta: 5.7GB). Free memory was 117.1MB in the beginning and 5.0GB in the end (delta: -4.9GB). Peak memory consumption was 974.8MB. Max. memory is 16.1GB. * Witness Printer took 183.42ms. Allocated memory is still 5.9GB. Free memory was 5.0GB in the beginning and 5.0GB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. 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: 1564]: 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, 302 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.3s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3129 SdHoareTripleChecker+Valid, 8.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3129 mSDsluCounter, 3493 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 577 mSDsCounter, 1643 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8998 IncrementalHoareTripleChecker+Invalid, 10641 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1643 mSolverCounterUnsat, 2916 mSDtfsCounter, 8998 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1746 GetRequests, 1716 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78500occurred in iteration=14, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 15 MinimizatonAttempts, 128 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 5074 NumberOfCodeBlocks, 5074 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 5052 ConstructedInterpolants, 0 QuantifiedInterpolants, 11169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3344 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 1904/1952 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1668]: Loop Invariant Derived loop invariant: (((((((((((((((a15 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a27 == 1)) || (((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a11 <= 0)) && (a27 == 1))) || (((a5 == 1) && (a12 == 1)) && (a27 <= 0))) || (((((a15 == 1) && (a26 == 1)) && (a5 == 1)) && (a12 == 1)) && (a27 == 1))) || (((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a3 <= 0)) && (a27 == 1))) || ((((((a5 == 1) && (a3 == 1)) && (a6 != 1)) && (a12 == 0)) && (a11 != 1)) && (a27 <= 0))) || ((((a26 == 1) && (a5 == 1)) && (a12 == 0)) && (a27 <= 0))) || (((((a26 == 1) && (a5 == 1)) && (a12 == 1)) && (a6 != 1)) && (a27 == 1))) || ((((a5 == 1) && (a12 == 1)) && (2 <= a3)) && (a27 == 1))) || (((a5 == 1) && (a12 == 0)) && (a27 == 1))) || ((((a5 == 1) && (2 <= a3)) && (a12 == 0)) && (a27 <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-19 17:24:16,442 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