./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.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 6b49fbf439c6d5cf33b5a144a2382feff3c2b3eeb58f6496beb37cacb5d6cd07 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 20:59:22,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 20:59:23,013 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 20:59:23,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 20:59:23,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 20:59:23,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 20:59:23,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 20:59:23,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 20:59:23,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 20:59:23,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 20:59:23,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 20:59:23,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 20:59:23,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 20:59:23,054 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 20:59:23,054 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 20:59:23,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 20:59:23,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 20:59:23,055 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 20:59:23,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 20:59:23,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 20:59:23,056 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 20:59:23,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 20:59:23,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 20:59:23,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 20:59:23,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 20:59:23,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 20:59:23,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 20:59:23,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 20:59:23,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 20:59:23,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 20:59:23,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 20:59:23,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 20:59:23,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:59:23,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 20:59:23,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 20:59:23,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 20:59:23,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 20:59:23,063 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 20:59:23,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 20:59:23,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 20:59:23,064 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 20:59:23,064 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 20:59:23,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b49fbf439c6d5cf33b5a144a2382feff3c2b3eeb58f6496beb37cacb5d6cd07 [2024-10-23 20:59:23,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 20:59:23,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 20:59:23,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 20:59:23,351 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 20:59:23,351 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 20:59:23,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2024-10-23 20:59:24,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 20:59:25,044 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 20:59:25,045 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.c [2024-10-23 20:59:25,066 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b338c5ba0/88b12bfbaf99488cb0ee7273f536f0ef/FLAG886bca1bb [2024-10-23 20:59:25,329 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b338c5ba0/88b12bfbaf99488cb0ee7273f536f0ef [2024-10-23 20:59:25,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 20:59:25,332 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 20:59:25,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 20:59:25,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 20:59:25,339 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 20:59:25,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:25,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bed0476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25, skipping insertion in model container [2024-10-23 20:59:25,340 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:25,384 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 20:59:25,603 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.c[5445,5458] [2024-10-23 20:59:25,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:59:25,796 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 20:59:25,834 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem10_label00.c[5445,5458] [2024-10-23 20:59:25,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:59:25,923 INFO L204 MainTranslator]: Completed translation [2024-10-23 20:59:25,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25 WrapperNode [2024-10-23 20:59:25,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 20:59:25,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 20:59:25,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 20:59:25,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 20:59:25,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:25,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,019 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2024-10-23 20:59:26,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 20:59:26,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 20:59:26,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 20:59:26,024 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 20:59:26,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,052 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,087 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 20:59:26,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,162 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 20:59:26,164 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 20:59:26,164 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 20:59:26,164 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 20:59:26,165 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (1/1) ... [2024-10-23 20:59:26,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:59:26,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:59:26,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 20:59:26,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 20:59:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 20:59:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 20:59:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 20:59:26,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 20:59:26,319 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 20:59:26,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 20:59:27,394 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-23 20:59:27,395 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 20:59:27,446 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 20:59:27,446 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 20:59:27,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:59:27 BoogieIcfgContainer [2024-10-23 20:59:27,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 20:59:27,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 20:59:27,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 20:59:27,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 20:59:27,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:59:25" (1/3) ... [2024-10-23 20:59:27,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18308a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:59:27, skipping insertion in model container [2024-10-23 20:59:27,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:59:25" (2/3) ... [2024-10-23 20:59:27,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18308a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:59:27, skipping insertion in model container [2024-10-23 20:59:27,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:59:27" (3/3) ... [2024-10-23 20:59:27,457 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label00.c [2024-10-23 20:59:27,472 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 20:59:27,472 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 20:59:27,530 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 20:59:27,535 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;@3ec3380e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 20:59:27,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 20:59:27,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-23 20:59:27,546 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:27,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:27,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:27,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1671139151, now seen corresponding path program 1 times [2024-10-23 20:59:27,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:27,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407500501] [2024-10-23 20:59:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:27,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:27,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:27,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407500501] [2024-10-23 20:59:27,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407500501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:27,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:27,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:59:27,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90989894] [2024-10-23 20:59:27,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:27,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 20:59:27,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 20:59:27,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 20:59:27,769 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:27,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:27,796 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2024-10-23 20:59:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 20:59:27,799 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-23 20:59:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:27,806 INFO L225 Difference]: With dead ends: 287 [2024-10-23 20:59:27,806 INFO L226 Difference]: Without dead ends: 142 [2024-10-23 20:59:27,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 20:59:27,811 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:27,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 20:59:27,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-10-23 20:59:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2024-10-23 20:59:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2024-10-23 20:59:27,844 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 46 [2024-10-23 20:59:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:27,845 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2024-10-23 20:59:27,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:27,846 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2024-10-23 20:59:27,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-23 20:59:27,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:27,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:27,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 20:59:27,847 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:27,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash 301914438, now seen corresponding path program 1 times [2024-10-23 20:59:27,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:27,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465895232] [2024-10-23 20:59:27,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:27,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:28,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:28,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465895232] [2024-10-23 20:59:28,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465895232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:28,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:28,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:59:28,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042018823] [2024-10-23 20:59:28,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:28,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:28,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:28,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:28,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:28,077 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:28,731 INFO L93 Difference]: Finished difference Result 283 states and 433 transitions. [2024-10-23 20:59:28,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:28,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 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 46 [2024-10-23 20:59:28,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:28,736 INFO L225 Difference]: With dead ends: 283 [2024-10-23 20:59:28,738 INFO L226 Difference]: Without dead ends: 281 [2024-10-23 20:59:28,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:28,740 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 137 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:28,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 9 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 20:59:28,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-10-23 20:59:28,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-10-23 20:59:28,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.5392857142857144) internal successors, (431), 280 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:28,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 431 transitions. [2024-10-23 20:59:28,771 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 431 transitions. Word has length 46 [2024-10-23 20:59:28,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:28,772 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 431 transitions. [2024-10-23 20:59:28,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 431 transitions. [2024-10-23 20:59:28,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-23 20:59:28,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:28,778 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:28,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 20:59:28,779 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:28,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:28,779 INFO L85 PathProgramCache]: Analyzing trace with hash -388989004, now seen corresponding path program 1 times [2024-10-23 20:59:28,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:28,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587922851] [2024-10-23 20:59:28,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:28,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:28,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:29,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:29,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587922851] [2024-10-23 20:59:29,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587922851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:29,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:29,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:59:29,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672691122] [2024-10-23 20:59:29,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:29,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:29,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:29,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:29,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:29,198 INFO L87 Difference]: Start difference. First operand 281 states and 431 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:29,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:29,659 INFO L93 Difference]: Finished difference Result 700 states and 1075 transitions. [2024-10-23 20:59:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:29,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-10-23 20:59:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:29,663 INFO L225 Difference]: With dead ends: 700 [2024-10-23 20:59:29,663 INFO L226 Difference]: Without dead ends: 420 [2024-10-23 20:59:29,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:29,666 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 73 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:29,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 50 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:59:29,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-10-23 20:59:29,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-10-23 20:59:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.4439140811455846) internal successors, (605), 419 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 605 transitions. [2024-10-23 20:59:29,692 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 605 transitions. Word has length 115 [2024-10-23 20:59:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:29,693 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 605 transitions. [2024-10-23 20:59:29,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:29,695 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 605 transitions. [2024-10-23 20:59:29,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-23 20:59:29,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:29,697 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:29,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 20:59:29,698 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:29,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash -634084573, now seen corresponding path program 1 times [2024-10-23 20:59:29,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:29,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918583499] [2024-10-23 20:59:29,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:29,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:29,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:29,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918583499] [2024-10-23 20:59:29,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918583499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:29,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:29,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:29,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481837646] [2024-10-23 20:59:29,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:29,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:29,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:29,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:29,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:29,880 INFO L87 Difference]: Start difference. First operand 420 states and 605 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:30,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:30,367 INFO L93 Difference]: Finished difference Result 1117 states and 1638 transitions. [2024-10-23 20:59:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:30,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-10-23 20:59:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:30,372 INFO L225 Difference]: With dead ends: 1117 [2024-10-23 20:59:30,372 INFO L226 Difference]: Without dead ends: 837 [2024-10-23 20:59:30,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:30,374 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 95 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:30,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 223 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 20:59:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-10-23 20:59:30,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 698. [2024-10-23 20:59:30,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 697 states have (on average 1.3314203730272596) internal successors, (928), 697 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:30,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 928 transitions. [2024-10-23 20:59:30,391 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 928 transitions. Word has length 121 [2024-10-23 20:59:30,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:30,391 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 928 transitions. [2024-10-23 20:59:30,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:30,392 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 928 transitions. [2024-10-23 20:59:30,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-23 20:59:30,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:30,394 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:30,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 20:59:30,395 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:30,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:30,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1831341025, now seen corresponding path program 1 times [2024-10-23 20:59:30,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:30,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029509986] [2024-10-23 20:59:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:30,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:30,566 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:30,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:30,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029509986] [2024-10-23 20:59:30,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029509986] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:30,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:30,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:59:30,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737081882] [2024-10-23 20:59:30,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:30,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:30,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:30,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:30,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:30,569 INFO L87 Difference]: Start difference. First operand 698 states and 928 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:31,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:31,041 INFO L93 Difference]: Finished difference Result 1395 states and 1961 transitions. [2024-10-23 20:59:31,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:31,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2024-10-23 20:59:31,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:31,045 INFO L225 Difference]: With dead ends: 1395 [2024-10-23 20:59:31,045 INFO L226 Difference]: Without dead ends: 837 [2024-10-23 20:59:31,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:31,047 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 52 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:31,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 74 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 20:59:31,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-10-23 20:59:31,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2024-10-23 20:59:31,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.2834928229665072) internal successors, (1073), 836 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:31,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1073 transitions. [2024-10-23 20:59:31,069 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1073 transitions. Word has length 140 [2024-10-23 20:59:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:31,070 INFO L471 AbstractCegarLoop]: Abstraction has 837 states and 1073 transitions. [2024-10-23 20:59:31,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:31,070 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1073 transitions. [2024-10-23 20:59:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-23 20:59:31,072 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:31,072 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 20:59:31,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 20:59:31,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:31,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:31,073 INFO L85 PathProgramCache]: Analyzing trace with hash -646455039, now seen corresponding path program 1 times [2024-10-23 20:59:31,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:31,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283021299] [2024-10-23 20:59:31,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:31,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-23 20:59:31,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:31,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283021299] [2024-10-23 20:59:31,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283021299] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:31,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:31,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:59:31,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286595845] [2024-10-23 20:59:31,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:31,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:31,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:31,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:31,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:31,227 INFO L87 Difference]: Start difference. First operand 837 states and 1073 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:31,711 INFO L93 Difference]: Finished difference Result 1812 states and 2329 transitions. [2024-10-23 20:59:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:31,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2024-10-23 20:59:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:31,716 INFO L225 Difference]: With dead ends: 1812 [2024-10-23 20:59:31,716 INFO L226 Difference]: Without dead ends: 1115 [2024-10-23 20:59:31,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:31,718 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 107 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:31,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 32 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 20:59:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2024-10-23 20:59:31,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1115. [2024-10-23 20:59:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.1768402154398563) internal successors, (1311), 1114 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1311 transitions. [2024-10-23 20:59:31,743 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1311 transitions. Word has length 181 [2024-10-23 20:59:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:31,743 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1311 transitions. [2024-10-23 20:59:31,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1311 transitions. [2024-10-23 20:59:31,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-10-23 20:59:31,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:31,746 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 20:59:31,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 20:59:31,747 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:31,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash -521574818, now seen corresponding path program 1 times [2024-10-23 20:59:31,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:31,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199861013] [2024-10-23 20:59:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:31,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:32,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:32,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199861013] [2024-10-23 20:59:32,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199861013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:32,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:32,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:32,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571585553] [2024-10-23 20:59:32,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:32,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:32,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:32,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:32,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:32,074 INFO L87 Difference]: Start difference. First operand 1115 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:32,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:32,542 INFO L93 Difference]: Finished difference Result 2368 states and 2856 transitions. [2024-10-23 20:59:32,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:32,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 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 198 [2024-10-23 20:59:32,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:32,547 INFO L225 Difference]: With dead ends: 2368 [2024-10-23 20:59:32,547 INFO L226 Difference]: Without dead ends: 1393 [2024-10-23 20:59:32,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:32,549 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 78 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:32,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 17 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:59:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-10-23 20:59:32,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1393. [2024-10-23 20:59:32,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1392 states have (on average 1.1997126436781609) internal successors, (1670), 1392 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:32,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1670 transitions. [2024-10-23 20:59:32,575 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1670 transitions. Word has length 198 [2024-10-23 20:59:32,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:32,575 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1670 transitions. [2024-10-23 20:59:32,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1670 transitions. [2024-10-23 20:59:32,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-23 20:59:32,578 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:32,578 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 20:59:32,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 20:59:32,578 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:32,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:32,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1024609422, now seen corresponding path program 1 times [2024-10-23 20:59:32,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:32,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701701205] [2024-10-23 20:59:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:32,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:59:32,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:32,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701701205] [2024-10-23 20:59:32,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701701205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:32,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:32,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:32,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391654143] [2024-10-23 20:59:32,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:32,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:32,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:32,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:32,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:32,780 INFO L87 Difference]: Start difference. First operand 1393 states and 1670 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:33,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:33,211 INFO L93 Difference]: Finished difference Result 2924 states and 3554 transitions. [2024-10-23 20:59:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:33,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 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 206 [2024-10-23 20:59:33,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:33,217 INFO L225 Difference]: With dead ends: 2924 [2024-10-23 20:59:33,217 INFO L226 Difference]: Without dead ends: 1671 [2024-10-23 20:59:33,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:33,219 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:33,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 212 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:59:33,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2024-10-23 20:59:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1532. [2024-10-23 20:59:33,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.1881123448726323) internal successors, (1819), 1531 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:33,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1819 transitions. [2024-10-23 20:59:33,247 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1819 transitions. Word has length 206 [2024-10-23 20:59:33,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:33,248 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1819 transitions. [2024-10-23 20:59:33,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:33,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1819 transitions. [2024-10-23 20:59:33,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-10-23 20:59:33,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:33,251 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 20:59:33,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 20:59:33,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:33,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash -649135019, now seen corresponding path program 1 times [2024-10-23 20:59:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:33,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058926505] [2024-10-23 20:59:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-10-23 20:59:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:33,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058926505] [2024-10-23 20:59:33,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058926505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:33,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:33,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:33,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818816713] [2024-10-23 20:59:33,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:33,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:33,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:33,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:33,417 INFO L87 Difference]: Start difference. First operand 1532 states and 1819 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:33,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:33,874 INFO L93 Difference]: Finished difference Result 2090 states and 2463 transitions. [2024-10-23 20:59:33,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:33,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 220 [2024-10-23 20:59:33,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:33,881 INFO L225 Difference]: With dead ends: 2090 [2024-10-23 20:59:33,881 INFO L226 Difference]: Without dead ends: 2088 [2024-10-23 20:59:33,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:33,883 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 136 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:33,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 9 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:59:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-10-23 20:59:33,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 1532. [2024-10-23 20:59:33,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.1881123448726323) internal successors, (1819), 1531 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1819 transitions. [2024-10-23 20:59:33,914 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1819 transitions. Word has length 220 [2024-10-23 20:59:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:33,916 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1819 transitions. [2024-10-23 20:59:33,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1819 transitions. [2024-10-23 20:59:33,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-23 20:59:33,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:33,920 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:33,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 20:59:33,921 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:33,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:33,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1270984020, now seen corresponding path program 1 times [2024-10-23 20:59:33,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:33,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771761217] [2024-10-23 20:59:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:33,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:34,436 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-10-23 20:59:34,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:34,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771761217] [2024-10-23 20:59:34,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771761217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:34,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:34,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-23 20:59:34,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079435598] [2024-10-23 20:59:34,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:34,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-23 20:59:34,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:34,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-23 20:59:34,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-23 20:59:34,439 INFO L87 Difference]: Start difference. First operand 1532 states and 1819 transitions. Second operand has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:35,085 INFO L93 Difference]: Finished difference Result 2979 states and 3548 transitions. [2024-10-23 20:59:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-23 20:59:35,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 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 309 [2024-10-23 20:59:35,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:35,090 INFO L225 Difference]: With dead ends: 2979 [2024-10-23 20:59:35,090 INFO L226 Difference]: Without dead ends: 1532 [2024-10-23 20:59:35,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-23 20:59:35,093 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 142 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:35,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 25 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 20:59:35,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-10-23 20:59:35,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2024-10-23 20:59:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1531 states have (on average 1.1828870019595037) internal successors, (1811), 1531 states have internal predecessors, (1811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1811 transitions. [2024-10-23 20:59:35,118 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1811 transitions. Word has length 309 [2024-10-23 20:59:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:35,118 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 1811 transitions. [2024-10-23 20:59:35,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.42857142857143) internal successors, (248), 6 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1811 transitions. [2024-10-23 20:59:35,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-10-23 20:59:35,123 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:35,123 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:35,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 20:59:35,123 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:35,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash 63225926, now seen corresponding path program 1 times [2024-10-23 20:59:35,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:35,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092770976] [2024-10-23 20:59:35,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:35,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-10-23 20:59:35,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:35,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092770976] [2024-10-23 20:59:35,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092770976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:35,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:35,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:35,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985771059] [2024-10-23 20:59:35,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:35,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:35,583 INFO L87 Difference]: Start difference. First operand 1532 states and 1811 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:36,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:36,012 INFO L93 Difference]: Finished difference Result 2924 states and 3478 transitions. [2024-10-23 20:59:36,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:36,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 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 345 [2024-10-23 20:59:36,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:36,018 INFO L225 Difference]: With dead ends: 2924 [2024-10-23 20:59:36,018 INFO L226 Difference]: Without dead ends: 1532 [2024-10-23 20:59:36,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:36,020 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 117 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:36,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 156 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:59:36,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-10-23 20:59:36,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1254. [2024-10-23 20:59:36,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1253 states have (on average 1.1452513966480447) internal successors, (1435), 1253 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1435 transitions. [2024-10-23 20:59:36,058 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1435 transitions. Word has length 345 [2024-10-23 20:59:36,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:36,058 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1435 transitions. [2024-10-23 20:59:36,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:36,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1435 transitions. [2024-10-23 20:59:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-10-23 20:59:36,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:36,064 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-10-23 20:59:36,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 20:59:36,064 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:36,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:36,065 INFO L85 PathProgramCache]: Analyzing trace with hash -635348172, now seen corresponding path program 1 times [2024-10-23 20:59:36,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:36,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199016552] [2024-10-23 20:59:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:36,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-23 20:59:36,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:36,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199016552] [2024-10-23 20:59:36,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199016552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:36,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:36,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:36,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840956909] [2024-10-23 20:59:36,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:36,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:59:36,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:36,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:59:36,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:36,267 INFO L87 Difference]: Start difference. First operand 1254 states and 1435 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:36,737 INFO L93 Difference]: Finished difference Result 3202 states and 3709 transitions. [2024-10-23 20:59:36,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:59:36,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 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 [2024-10-23 20:59:36,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:36,746 INFO L225 Difference]: With dead ends: 3202 [2024-10-23 20:59:36,746 INFO L226 Difference]: Without dead ends: 2088 [2024-10-23 20:59:36,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:59:36,749 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 21 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:36,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 202 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:59:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2088 states. [2024-10-23 20:59:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2088 to 2088. [2024-10-23 20:59:36,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2088 states, 2087 states have (on average 1.127934834690944) internal successors, (2354), 2087 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:36,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2088 states to 2088 states and 2354 transitions. [2024-10-23 20:59:36,805 INFO L78 Accepts]: Start accepts. Automaton has 2088 states and 2354 transitions. Word has length 347 [2024-10-23 20:59:36,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:36,805 INFO L471 AbstractCegarLoop]: Abstraction has 2088 states and 2354 transitions. [2024-10-23 20:59:36,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2088 states and 2354 transitions. [2024-10-23 20:59:36,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-10-23 20:59:36,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:59:36,815 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:36,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 20:59:36,816 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:59:36,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:59:36,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2071505958, now seen corresponding path program 1 times [2024-10-23 20:59:36,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:59:36,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262997524] [2024-10-23 20:59:36,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:59:36,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:59:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:59:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-10-23 20:59:37,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:59:37,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262997524] [2024-10-23 20:59:37,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262997524] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:59:37,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:59:37,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:59:37,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095740212] [2024-10-23 20:59:37,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:59:37,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 20:59:37,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:59:37,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 20:59:37,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 20:59:37,373 INFO L87 Difference]: Start difference. First operand 2088 states and 2354 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:59:37,736 INFO L93 Difference]: Finished difference Result 3901 states and 4420 transitions. [2024-10-23 20:59:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 20:59:37,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2024-10-23 20:59:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:59:37,737 INFO L225 Difference]: With dead ends: 3901 [2024-10-23 20:59:37,737 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 20:59:37,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 20:59:37,741 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 89 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:59:37,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 9 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:59:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 20:59:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 20:59:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 20:59:37,743 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 360 [2024-10-23 20:59:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:59:37,743 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 20:59:37,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 20:59:37,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 20:59:37,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 20:59:37,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 20:59:37,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 20:59:37,749 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:59:37,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 20:59:38,009 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 20:59:38,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:59:38 BoogieIcfgContainer [2024-10-23 20:59:38,028 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 20:59:38,028 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 20:59:38,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 20:59:38,029 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 20:59:38,029 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:59:27" (3/4) ... [2024-10-23 20:59:38,031 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 20:59:38,049 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 20:59:38,050 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 20:59:38,050 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 20:59:38,051 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 20:59:38,196 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 20:59:38,198 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 20:59:38,198 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 20:59:38,199 INFO L158 Benchmark]: Toolchain (without parser) took 12866.78ms. Allocated memory was 163.6MB in the beginning and 360.7MB in the end (delta: 197.1MB). Free memory was 95.5MB in the beginning and 147.7MB in the end (delta: -52.1MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,199 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 20:59:38,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.38ms. Allocated memory is still 163.6MB. Free memory was 95.2MB in the beginning and 125.7MB in the end (delta: -30.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.91ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 117.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,200 INFO L158 Benchmark]: Boogie Preprocessor took 142.58ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 106.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,201 INFO L158 Benchmark]: RCFGBuilder took 1282.94ms. Allocated memory is still 163.6MB. Free memory was 106.8MB in the beginning and 86.4MB in the end (delta: 20.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,201 INFO L158 Benchmark]: TraceAbstraction took 10577.96ms. Allocated memory was 163.6MB in the beginning and 360.7MB in the end (delta: 197.1MB). Free memory was 85.2MB in the beginning and 159.2MB in the end (delta: -74.0MB). Peak memory consumption was 122.0MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,201 INFO L158 Benchmark]: Witness Printer took 170.10ms. Allocated memory is still 360.7MB. Free memory was 159.2MB in the beginning and 147.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-23 20:59:38,203 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 163.6MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 589.38ms. Allocated memory is still 163.6MB. Free memory was 95.2MB in the beginning and 125.7MB in the end (delta: -30.4MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.91ms. Allocated memory is still 163.6MB. Free memory was 125.7MB in the beginning and 117.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.58ms. Allocated memory is still 163.6MB. Free memory was 117.2MB in the beginning and 106.8MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1282.94ms. Allocated memory is still 163.6MB. Free memory was 106.8MB in the beginning and 86.4MB in the end (delta: 20.4MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10577.96ms. Allocated memory was 163.6MB in the beginning and 360.7MB in the end (delta: 197.1MB). Free memory was 85.2MB in the beginning and 159.2MB in the end (delta: -74.0MB). Peak memory consumption was 122.0MB. Max. memory is 16.1GB. * Witness Printer took 170.10ms. Allocated memory is still 360.7MB. Free memory was 159.2MB in the beginning and 147.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. 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: 155]: 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, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1097 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1097 mSDsluCounter, 1235 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 632 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4971 IncrementalHoareTripleChecker+Invalid, 5603 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 632 mSolverCounterUnsat, 1177 mSDtfsCounter, 4971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2088occurred in iteration=12, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2634 NumberOfCodeBlocks, 2634 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2621 ConstructedInterpolants, 0 QuantifiedInterpolants, 7606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 2274/2274 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: 592]: Loop Invariant Derived loop invariant: (((((((14 == a4) && (((long long) a1 + 551894) <= 0)) && (a12 == 0)) && (a19 == 6)) || ((((a19 <= 9) && (14 == a4)) && (a12 == 0)) && (a10 != 0))) || ((((a10 == 0) && (8 <= a19)) && (14 == a4)) && (a12 == 0))) || (((a10 == 1) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2024-10-23 20:59:38,234 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