./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label23.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 0ce888a9129ad33560fa4014264bdc8a732894a2cafd0839341c70c58fdd8f98 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:15:05,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:15:05,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:15:05,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:15:05,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:15:05,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:15:05,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:15:05,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:15:05,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:15:05,857 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:15:05,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:15:05,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:15:05,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:15:05,860 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:15:05,860 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:15:05,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:15:05,861 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:15:05,861 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:15:05,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:15:05,864 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:15:05,864 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:15:05,864 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:15:05,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:15:05,867 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:15:05,867 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:15:05,867 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:15:05,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:15:05,868 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:15:05,868 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:15:05,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:15:05,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:15:05,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:15:05,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:15:05,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:15:05,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:15:05,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:15:05,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:15:05,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:15:05,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:15:05,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:15:05,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:15:05,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:15:05,873 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ce888a9129ad33560fa4014264bdc8a732894a2cafd0839341c70c58fdd8f98 [2024-11-08 11:15:06,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:15:06,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:15:06,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:15:06,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:15:06,160 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:15:06,161 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label23.c [2024-11-08 11:15:07,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:15:08,151 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:15:08,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label23.c [2024-11-08 11:15:08,212 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91bc646ce/e62d853b882a4f218af7b456769aa5ce/FLAG5104e71c1 [2024-11-08 11:15:08,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91bc646ce/e62d853b882a4f218af7b456769aa5ce [2024-11-08 11:15:08,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:15:08,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:15:08,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:15:08,237 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:15:08,242 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:15:08,243 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:15:08" (1/1) ... [2024-11-08 11:15:08,244 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@210348ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:08, skipping insertion in model container [2024-11-08 11:15:08,244 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:15:08" (1/1) ... [2024-11-08 11:15:08,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:15:08,573 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/Problem12_label23.c[4581,4594] [2024-11-08 11:15:09,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:15:09,222 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:15:09,307 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/Problem12_label23.c[4581,4594] [2024-11-08 11:15:09,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:15:09,651 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:15:09,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09 WrapperNode [2024-11-08 11:15:09,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:15:09,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:15:09,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:15:09,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:15:09,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:09,709 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:09,969 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-08 11:15:09,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:15:09,971 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:15:09,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:15:09,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:15:09,981 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:09,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,243 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]. [2024-11-08 11:15:10,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,526 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:15:10,527 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:15:10,527 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:15:10,527 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:15:10,528 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (1/1) ... [2024-11-08 11:15:10,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:15:10,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:15:10,561 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) [2024-11-08 11:15:10,566 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 [2024-11-08 11:15:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:15:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:15:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:15:10,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:15:10,687 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:15:10,689 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:15:14,835 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-08 11:15:14,835 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:15:14,877 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:15:14,878 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:15:14,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:14 BoogieIcfgContainer [2024-11-08 11:15:14,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:15:14,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:15:14,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:15:14,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:15:14,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:15:08" (1/3) ... [2024-11-08 11:15:14,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c48826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:15:14, skipping insertion in model container [2024-11-08 11:15:14,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:09" (2/3) ... [2024-11-08 11:15:14,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c48826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:15:14, skipping insertion in model container [2024-11-08 11:15:14,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:14" (3/3) ... [2024-11-08 11:15:14,888 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label23.c [2024-11-08 11:15:14,905 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:15:14,905 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:15:15,004 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:15:15,011 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;@7ba65a8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:15:15,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:15:15,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:15,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 11:15:15,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:15,030 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] [2024-11-08 11:15:15,031 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:15,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:15,037 INFO L85 PathProgramCache]: Analyzing trace with hash -596708735, now seen corresponding path program 1 times [2024-11-08 11:15:15,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:15,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260518691] [2024-11-08 11:15:15,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:15,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:15:15,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:15,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260518691] [2024-11-08 11:15:15,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260518691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:15,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:15,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:15:15,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107416561] [2024-11-08 11:15:15,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:15,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:15,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:15,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:15,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:15,413 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 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 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:18,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:18,856 INFO L93 Difference]: Finished difference Result 2388 states and 4629 transitions. [2024-11-08 11:15:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:18,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 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 35 [2024-11-08 11:15:18,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:18,881 INFO L225 Difference]: With dead ends: 2388 [2024-11-08 11:15:18,881 INFO L226 Difference]: Without dead ends: 1506 [2024-11-08 11:15:18,890 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 [2024-11-08 11:15:18,893 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 801 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 3264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:18,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 112 Invalid, 3264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 11:15:18,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-08 11:15:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-08 11:15:19,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.86578073089701) internal successors, (2808), 1505 states have internal predecessors, (2808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:19,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2808 transitions. [2024-11-08 11:15:19,015 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2808 transitions. Word has length 35 [2024-11-08 11:15:19,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:19,016 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2808 transitions. [2024-11-08 11:15:19,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:19,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2808 transitions. [2024-11-08 11:15:19,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 11:15:19,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:19,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:19,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:15:19,023 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:19,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash -830145180, now seen corresponding path program 1 times [2024-11-08 11:15:19,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:19,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252771072] [2024-11-08 11:15:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:15:19,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:19,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252771072] [2024-11-08 11:15:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252771072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:15:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5162862] [2024-11-08 11:15:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:19,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:15:19,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:19,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:15:19,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:15:19,401 INFO L87 Difference]: Start difference. First operand 1506 states and 2808 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:24,587 INFO L93 Difference]: Finished difference Result 5271 states and 9796 transitions. [2024-11-08 11:15:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 11:15:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2024-11-08 11:15:24,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:24,603 INFO L225 Difference]: With dead ends: 5271 [2024-11-08 11:15:24,603 INFO L226 Difference]: Without dead ends: 3767 [2024-11-08 11:15:24,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:24,609 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 2312 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2312 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 5141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1529 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:24,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2312 Valid, 197 Invalid, 5141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1529 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-08 11:15:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3767 states. [2024-11-08 11:15:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3767 to 3759. [2024-11-08 11:15:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3759 states, 3758 states have (on average 1.6056412985630655) internal successors, (6034), 3758 states have internal predecessors, (6034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3759 states to 3759 states and 6034 transitions. [2024-11-08 11:15:24,678 INFO L78 Accepts]: Start accepts. Automaton has 3759 states and 6034 transitions. Word has length 100 [2024-11-08 11:15:24,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:24,678 INFO L471 AbstractCegarLoop]: Abstraction has 3759 states and 6034 transitions. [2024-11-08 11:15:24,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:24,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3759 states and 6034 transitions. [2024-11-08 11:15:24,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 11:15:24,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:24,681 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:24,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:15:24,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:24,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:24,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1113859181, now seen corresponding path program 1 times [2024-11-08 11:15:24,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:24,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846720752] [2024-11-08 11:15:24,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:24,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:15:24,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:24,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846720752] [2024-11-08 11:15:24,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846720752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:24,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:24,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:15:24,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551603571] [2024-11-08 11:15:24,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:24,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:24,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:24,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:24,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:24,839 INFO L87 Difference]: Start difference. First operand 3759 states and 6034 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:27,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:27,187 INFO L93 Difference]: Finished difference Result 9018 states and 14535 transitions. [2024-11-08 11:15:27,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:27,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-08 11:15:27,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:27,206 INFO L225 Difference]: With dead ends: 9018 [2024-11-08 11:15:27,206 INFO L226 Difference]: Without dead ends: 5261 [2024-11-08 11:15:27,211 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 [2024-11-08 11:15:27,216 INFO L432 NwaCegarLoop]: 1186 mSDtfsCounter, 828 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:27,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1194 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:15:27,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-11-08 11:15:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5261. [2024-11-08 11:15:27,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 1.5262357414448668) internal successors, (8028), 5260 states have internal predecessors, (8028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:27,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 8028 transitions. [2024-11-08 11:15:27,309 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 8028 transitions. Word has length 106 [2024-11-08 11:15:27,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:27,310 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 8028 transitions. [2024-11-08 11:15:27,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:27,310 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 8028 transitions. [2024-11-08 11:15:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-08 11:15:27,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:27,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:27,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:15:27,314 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:27,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2106463532, now seen corresponding path program 1 times [2024-11-08 11:15:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:27,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186358911] [2024-11-08 11:15:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:27,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:27,755 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:15:27,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:27,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186358911] [2024-11-08 11:15:27,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186358911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:15:27,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176424361] [2024-11-08 11:15:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:27,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:15:27,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:15:27,760 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) [2024-11-08 11:15:27,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:15:27,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:27,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:15:27,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:15:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 11:15:28,134 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:15:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176424361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:28,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:15:28,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-08 11:15:28,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682488081] [2024-11-08 11:15:28,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:28,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:28,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:28,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:28,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:28,140 INFO L87 Difference]: Start difference. First operand 5261 states and 8028 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:30,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:30,806 INFO L93 Difference]: Finished difference Result 15026 states and 23322 transitions. [2024-11-08 11:15:30,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:30,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 180 [2024-11-08 11:15:30,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:30,839 INFO L225 Difference]: With dead ends: 15026 [2024-11-08 11:15:30,840 INFO L226 Difference]: Without dead ends: 9767 [2024-11-08 11:15:30,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:30,854 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 616 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:30,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 654 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 11:15:30,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-08 11:15:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-08 11:15:31,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.5261109973377023) internal successors, (14904), 9766 states have internal predecessors, (14904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:31,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 14904 transitions. [2024-11-08 11:15:31,027 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 14904 transitions. Word has length 180 [2024-11-08 11:15:31,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:31,028 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 14904 transitions. [2024-11-08 11:15:31,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:31,029 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 14904 transitions. [2024-11-08 11:15:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-08 11:15:31,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:31,034 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:31,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:15:31,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:15:31,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:31,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:31,236 INFO L85 PathProgramCache]: Analyzing trace with hash 675673696, now seen corresponding path program 1 times [2024-11-08 11:15:31,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:31,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191367897] [2024-11-08 11:15:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:31,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-08 11:15:31,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:31,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191367897] [2024-11-08 11:15:31,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191367897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:31,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:31,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:15:31,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544748949] [2024-11-08 11:15:31,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:31,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:15:31,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:31,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:15:31,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:15:31,730 INFO L87 Difference]: Start difference. First operand 9767 states and 14904 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:35,338 INFO L93 Difference]: Finished difference Result 25577 states and 39289 transitions. [2024-11-08 11:15:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:15:35,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 265 [2024-11-08 11:15:35,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:35,377 INFO L225 Difference]: With dead ends: 25577 [2024-11-08 11:15:35,377 INFO L226 Difference]: Without dead ends: 15775 [2024-11-08 11:15:35,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:15:35,390 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 688 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 4461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:35,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 712 Invalid, 4461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 11:15:35,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15775 states. [2024-11-08 11:15:35,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15775 to 14273. [2024-11-08 11:15:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14273 states, 14272 states have (on average 1.3621076233183858) internal successors, (19440), 14272 states have internal predecessors, (19440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14273 states to 14273 states and 19440 transitions. [2024-11-08 11:15:35,665 INFO L78 Accepts]: Start accepts. Automaton has 14273 states and 19440 transitions. Word has length 265 [2024-11-08 11:15:35,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:35,666 INFO L471 AbstractCegarLoop]: Abstraction has 14273 states and 19440 transitions. [2024-11-08 11:15:35,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:35,667 INFO L276 IsEmpty]: Start isEmpty. Operand 14273 states and 19440 transitions. [2024-11-08 11:15:35,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-08 11:15:35,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:35,672 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:15:35,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:15:35,673 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:35,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:35,675 INFO L85 PathProgramCache]: Analyzing trace with hash -420703917, now seen corresponding path program 1 times [2024-11-08 11:15:35,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:35,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187245749] [2024-11-08 11:15:35,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:35,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:35,911 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-08 11:15:35,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:35,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187245749] [2024-11-08 11:15:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187245749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:35,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:15:35,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428077084] [2024-11-08 11:15:35,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:35,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:35,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:35,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:35,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:35,916 INFO L87 Difference]: Start difference. First operand 14273 states and 19440 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) [2024-11-08 11:15:38,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:38,581 INFO L93 Difference]: Finished difference Result 35303 states and 48032 transitions. [2024-11-08 11:15:38,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:38,582 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 284 [2024-11-08 11:15:38,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:38,617 INFO L225 Difference]: With dead ends: 35303 [2024-11-08 11:15:38,617 INFO L226 Difference]: Without dead ends: 21032 [2024-11-08 11:15:38,629 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 [2024-11-08 11:15:38,631 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 679 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:38,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 461 Invalid, 2777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [791 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 11:15:38,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2024-11-08 11:15:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 20281. [2024-11-08 11:15:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20281 states, 20280 states have (on average 1.1991617357001971) internal successors, (24319), 20280 states have internal predecessors, (24319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:38,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20281 states to 20281 states and 24319 transitions. [2024-11-08 11:15:38,870 INFO L78 Accepts]: Start accepts. Automaton has 20281 states and 24319 transitions. Word has length 284 [2024-11-08 11:15:38,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:38,871 INFO L471 AbstractCegarLoop]: Abstraction has 20281 states and 24319 transitions. [2024-11-08 11:15:38,871 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) [2024-11-08 11:15:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 20281 states and 24319 transitions. [2024-11-08 11:15:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-08 11:15:38,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:38,879 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:38,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:15:38,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:38,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:38,880 INFO L85 PathProgramCache]: Analyzing trace with hash 806361403, now seen corresponding path program 1 times [2024-11-08 11:15:38,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:38,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958300012] [2024-11-08 11:15:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 231 proven. 54 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-08 11:15:39,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:39,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958300012] [2024-11-08 11:15:39,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958300012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:15:39,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724563663] [2024-11-08 11:15:39,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:39,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:15:39,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:15:39,319 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) [2024-11-08 11:15:39,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:15:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:39,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:15:39,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:15:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 11:15:39,588 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:15:39,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724563663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:39,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:15:39,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-08 11:15:39,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482083085] [2024-11-08 11:15:39,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:39,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:39,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:39,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:39,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:39,591 INFO L87 Difference]: Start difference. First operand 20281 states and 24319 transitions. Second operand has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:42,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:42,126 INFO L93 Difference]: Finished difference Result 53327 states and 64898 transitions. [2024-11-08 11:15:42,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:42,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 347 [2024-11-08 11:15:42,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:42,175 INFO L225 Difference]: With dead ends: 53327 [2024-11-08 11:15:42,176 INFO L226 Difference]: Without dead ends: 33048 [2024-11-08 11:15:42,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:42,201 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 903 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2081 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 2784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:42,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 328 Invalid, 2784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2081 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 11:15:42,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33048 states. [2024-11-08 11:15:42,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33048 to 27791. [2024-11-08 11:15:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27791 states, 27790 states have (on average 1.1989204749910038) internal successors, (33318), 27790 states have internal predecessors, (33318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:42,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27791 states to 27791 states and 33318 transitions. [2024-11-08 11:15:42,541 INFO L78 Accepts]: Start accepts. Automaton has 27791 states and 33318 transitions. Word has length 347 [2024-11-08 11:15:42,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:42,542 INFO L471 AbstractCegarLoop]: Abstraction has 27791 states and 33318 transitions. [2024-11-08 11:15:42,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:42,542 INFO L276 IsEmpty]: Start isEmpty. Operand 27791 states and 33318 transitions. [2024-11-08 11:15:42,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-11-08 11:15:42,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:42,654 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:42,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 11:15:42,858 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 [2024-11-08 11:15:42,859 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:42,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:42,860 INFO L85 PathProgramCache]: Analyzing trace with hash -179163398, now seen corresponding path program 1 times [2024-11-08 11:15:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:42,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696936458] [2024-11-08 11:15:42,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:42,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 11:15:43,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:43,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696936458] [2024-11-08 11:15:43,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696936458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:43,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:43,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:15:43,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153475418] [2024-11-08 11:15:43,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:43,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:43,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:43,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:43,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:43,819 INFO L87 Difference]: Start difference. First operand 27791 states and 33318 transitions. Second operand has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:46,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:46,607 INFO L93 Difference]: Finished difference Result 63841 states and 76864 transitions. [2024-11-08 11:15:46,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:46,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2024-11-08 11:15:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:46,658 INFO L225 Difference]: With dead ends: 63841 [2024-11-08 11:15:46,658 INFO L226 Difference]: Without dead ends: 36052 [2024-11-08 11:15:46,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:46,684 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 776 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 2928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:46,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 142 Invalid, 2928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 11:15:46,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36052 states. [2024-11-08 11:15:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36052 to 33799. [2024-11-08 11:15:47,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33799 states, 33798 states have (on average 1.1885022782413162) internal successors, (40169), 33798 states have internal predecessors, (40169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33799 states to 33799 states and 40169 transitions. [2024-11-08 11:15:47,098 INFO L78 Accepts]: Start accepts. Automaton has 33799 states and 40169 transitions. Word has length 377 [2024-11-08 11:15:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:47,098 INFO L471 AbstractCegarLoop]: Abstraction has 33799 states and 40169 transitions. [2024-11-08 11:15:47,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:47,100 INFO L276 IsEmpty]: Start isEmpty. Operand 33799 states and 40169 transitions. [2024-11-08 11:15:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2024-11-08 11:15:47,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:47,115 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-08 11:15:47,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:15:47,115 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:47,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:47,115 INFO L85 PathProgramCache]: Analyzing trace with hash 300978754, now seen corresponding path program 1 times [2024-11-08 11:15:47,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:47,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342013516] [2024-11-08 11:15:47,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:47,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:47,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 356 proven. 108 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-08 11:15:47,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:47,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342013516] [2024-11-08 11:15:47,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342013516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:15:47,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818962584] [2024-11-08 11:15:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:47,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:15:47,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:15:47,818 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) [2024-11-08 11:15:47,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 11:15:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:47,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 596 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:15:47,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:15:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2024-11-08 11:15:48,028 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:15:48,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818962584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:48,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:15:48,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-11-08 11:15:48,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735809125] [2024-11-08 11:15:48,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:48,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:48,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:48,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:48,031 INFO L87 Difference]: Start difference. First operand 33799 states and 40169 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:50,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:50,501 INFO L93 Difference]: Finished difference Result 69849 states and 83368 transitions. [2024-11-08 11:15:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 443 [2024-11-08 11:15:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:50,552 INFO L225 Difference]: With dead ends: 69849 [2024-11-08 11:15:50,553 INFO L226 Difference]: Without dead ends: 36052 [2024-11-08 11:15:50,580 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:15:50,580 INFO L432 NwaCegarLoop]: 1109 mSDtfsCounter, 839 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:50,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1117 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:15:50,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36052 states. [2024-11-08 11:15:51,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36052 to 36052. [2024-11-08 11:15:51,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36052 states, 36051 states have (on average 1.155501927824471) internal successors, (41657), 36051 states have internal predecessors, (41657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:51,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36052 states to 36052 states and 41657 transitions. [2024-11-08 11:15:51,180 INFO L78 Accepts]: Start accepts. Automaton has 36052 states and 41657 transitions. Word has length 443 [2024-11-08 11:15:51,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:51,181 INFO L471 AbstractCegarLoop]: Abstraction has 36052 states and 41657 transitions. [2024-11-08 11:15:51,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:51,181 INFO L276 IsEmpty]: Start isEmpty. Operand 36052 states and 41657 transitions. [2024-11-08 11:15:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1009 [2024-11-08 11:15:51,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:51,233 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:51,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 11:15:51,437 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 [2024-11-08 11:15:51,438 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:51,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:51,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1697984991, now seen corresponding path program 1 times [2024-11-08 11:15:51,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:51,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025861670] [2024-11-08 11:15:51,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:51,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 538 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-08 11:15:52,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:52,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025861670] [2024-11-08 11:15:52,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025861670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:52,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:52,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:15:52,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113872191] [2024-11-08 11:15:52,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:52,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:52,183 INFO L87 Difference]: Start difference. First operand 36052 states and 41657 transitions. Second operand has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:54,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:54,922 INFO L93 Difference]: Finished difference Result 87122 states and 100479 transitions. [2024-11-08 11:15:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:54,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 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 1008 [2024-11-08 11:15:54,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:55,000 INFO L225 Difference]: With dead ends: 87122 [2024-11-08 11:15:55,000 INFO L226 Difference]: Without dead ends: 51072 [2024-11-08 11:15:55,034 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 [2024-11-08 11:15:55,035 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 736 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 778 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 3041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 778 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:55,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 187 Invalid, 3041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [778 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 11:15:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51072 states. [2024-11-08 11:15:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51072 to 46566. [2024-11-08 11:15:55,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46566 states, 46565 states have (on average 1.1496188124127564) internal successors, (53532), 46565 states have internal predecessors, (53532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:55,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46566 states to 46566 states and 53532 transitions. [2024-11-08 11:15:55,676 INFO L78 Accepts]: Start accepts. Automaton has 46566 states and 53532 transitions. Word has length 1008 [2024-11-08 11:15:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:55,677 INFO L471 AbstractCegarLoop]: Abstraction has 46566 states and 53532 transitions. [2024-11-08 11:15:55,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 46566 states and 53532 transitions. [2024-11-08 11:15:55,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1029 [2024-11-08 11:15:55,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:15:55,730 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:55,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:15:55,731 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:15:55,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:15:55,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1469199443, now seen corresponding path program 1 times [2024-11-08 11:15:55,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:15:55,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775232663] [2024-11-08 11:15:55,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:15:55,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:15:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:15:56,642 INFO L134 CoverageAnalysis]: Checked inductivity of 689 backedges. 558 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-08 11:15:56,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:15:56,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775232663] [2024-11-08 11:15:56,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775232663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:15:56,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:15:56,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:15:56,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15173550] [2024-11-08 11:15:56,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:15:56,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:15:56,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:15:56,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:15:56,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:15:56,647 INFO L87 Difference]: Start difference. First operand 46566 states and 53532 transitions. Second operand has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:59,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:15:59,219 INFO L93 Difference]: Finished difference Result 96132 states and 110150 transitions. [2024-11-08 11:15:59,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:15:59,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 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 1028 [2024-11-08 11:15:59,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:15:59,220 INFO L225 Difference]: With dead ends: 96132 [2024-11-08 11:15:59,220 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 11:15:59,257 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 [2024-11-08 11:15:59,257 INFO L432 NwaCegarLoop]: 1130 mSDtfsCounter, 791 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:15:59,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1137 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:15:59,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 11:15:59,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 11:15:59,259 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) [2024-11-08 11:15:59,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 11:15:59,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1028 [2024-11-08 11:15:59,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:15:59,259 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 11:15:59,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 299.6666666666667) internal successors, (899), 3 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:15:59,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 11:15:59,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 11:15:59,262 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 11:15:59,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:15:59,266 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:15:59,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 11:16:00,185 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 11:16:00,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 11:16:00 BoogieIcfgContainer [2024-11-08 11:16:00,207 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 11:16:00,208 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 11:16:00,208 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 11:16:00,208 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 11:16:00,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:14" (3/4) ... [2024-11-08 11:16:00,211 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 11:16:00,278 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-08 11:16:00,283 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 11:16:00,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 11:16:00,293 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 11:16:00,671 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 11:16:00,673 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 11:16:00,673 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 11:16:00,673 INFO L158 Benchmark]: Toolchain (without parser) took 52439.30ms. Allocated memory was 184.5MB in the beginning and 2.3GB in the end (delta: 2.1GB). Free memory was 147.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 739.8MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,673 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 11:16:00,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1415.65ms. Allocated memory is still 184.5MB. Free memory was 147.4MB in the beginning and 68.3MB in the end (delta: 79.1MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 316.81ms. Allocated memory is still 184.5MB. Free memory was 68.3MB in the beginning and 62.2MB in the end (delta: 6.1MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,674 INFO L158 Benchmark]: Boogie Preprocessor took 555.08ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 62.2MB in the beginning and 206.6MB in the end (delta: -144.4MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,675 INFO L158 Benchmark]: RCFGBuilder took 4351.95ms. Allocated memory was 323.0MB in the beginning and 627.0MB in the end (delta: 304.1MB). Free memory was 206.6MB in the beginning and 283.6MB in the end (delta: -77.0MB). Peak memory consumption was 234.9MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,675 INFO L158 Benchmark]: TraceAbstraction took 45325.98ms. Allocated memory was 627.0MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 283.6MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 427.2MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,676 INFO L158 Benchmark]: Witness Printer took 464.69ms. Allocated memory is still 2.3GB. Free memory was 1.5GB in the beginning and 1.8GB in the end (delta: -279.7MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-08 11:16:00,677 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 68.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1415.65ms. Allocated memory is still 184.5MB. Free memory was 147.4MB in the beginning and 68.3MB in the end (delta: 79.1MB). Peak memory consumption was 111.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 316.81ms. Allocated memory is still 184.5MB. Free memory was 68.3MB in the beginning and 62.2MB in the end (delta: 6.1MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 555.08ms. Allocated memory was 184.5MB in the beginning and 323.0MB in the end (delta: 138.4MB). Free memory was 62.2MB in the beginning and 206.6MB in the end (delta: -144.4MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * RCFGBuilder took 4351.95ms. Allocated memory was 323.0MB in the beginning and 627.0MB in the end (delta: 304.1MB). Free memory was 206.6MB in the beginning and 283.6MB in the end (delta: -77.0MB). Peak memory consumption was 234.9MB. Max. memory is 16.1GB. * TraceAbstraction took 45325.98ms. Allocated memory was 627.0MB in the beginning and 2.3GB in the end (delta: 1.6GB). Free memory was 283.6MB in the beginning and 1.5GB in the end (delta: -1.2GB). Peak memory consumption was 427.2MB. Max. memory is 16.1GB. * Witness Printer took 464.69ms. Allocated memory is still 2.3GB. Free memory was 1.5GB in the beginning and 1.8GB in the end (delta: -279.7MB). Peak memory consumption was 16.0MB. 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: 127]: 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, 818 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.3s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 33.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9969 SdHoareTripleChecker+Valid, 31.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9969 mSDsluCounter, 6241 SdHoareTripleChecker+Invalid, 25.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 8319 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27307 IncrementalHoareTripleChecker+Invalid, 35626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8319 mSolverCounterUnsat, 6143 mSDtfsCounter, 27307 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1004 GetRequests, 984 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46566occurred in iteration=10, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 11 MinimizatonAttempts, 14277 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 5143 NumberOfCodeBlocks, 5143 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5129 ConstructedInterpolants, 0 QuantifiedInterpolants, 12274 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1329 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 4087/4281 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: 4828]: Loop Invariant Derived loop invariant: (((((((4 <= a5) && (a2 <= 189)) || (((a7 <= 13) && (6 != a5)) && (190 <= a2))) || ((a24 <= 14) && (6 != a5))) || ((a5 <= 4) && (190 <= a2))) || ((13 <= a7) && (a2 <= 189))) || (a24 <= 13)) RESULT: Ultimate proved your program to be correct! [2024-11-08 11:16:00,710 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