./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/Problem02_label38.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/Problem02_label38.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 a670cdf39cff768f377fda4aa36462d7d9bf374db1f5d06db7ce4e528593b74a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 20:19:21,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 20:19:21,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 20:19:21,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 20:19:21,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 20:19:21,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 20:19:21,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 20:19:21,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 20:19:21,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 20:19:21,550 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 20:19:21,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 20:19:21,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 20:19:21,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 20:19:21,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 20:19:21,553 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 20:19:21,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 20:19:21,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 20:19:21,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 20:19:21,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 20:19:21,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 20:19:21,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 20:19:21,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 20:19:21,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 20:19:21,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 20:19:21,556 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 20:19:21,556 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 20:19:21,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 20:19:21,557 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 20:19:21,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 20:19:21,557 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 20:19:21,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 20:19:21,557 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 20:19:21,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:19:21,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 20:19:21,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 20:19:21,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 20:19:21,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 20:19:21,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 20:19:21,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 20:19:21,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 20:19:21,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 20:19:21,563 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 20:19:21,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a670cdf39cff768f377fda4aa36462d7d9bf374db1f5d06db7ce4e528593b74a [2024-10-23 20:19:21,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 20:19:21,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 20:19:21,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 20:19:21,788 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 20:19:21,788 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 20:19:21,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label38.c [2024-10-23 20:19:22,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 20:19:23,206 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 20:19:23,206 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label38.c [2024-10-23 20:19:23,217 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0993ea4f/ebe9636f12904274bd380b9fd25228c8/FLAG008cdf1c4 [2024-10-23 20:19:23,230 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0993ea4f/ebe9636f12904274bd380b9fd25228c8 [2024-10-23 20:19:23,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 20:19:23,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 20:19:23,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 20:19:23,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 20:19:23,241 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 20:19:23,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10661ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23, skipping insertion in model container [2024-10-23 20:19:23,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 20:19:23,535 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/Problem02_label38.c[20309,20322] [2024-10-23 20:19:23,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:19:23,573 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 20:19:23,658 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/Problem02_label38.c[20309,20322] [2024-10-23 20:19:23,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 20:19:23,678 INFO L204 MainTranslator]: Completed translation [2024-10-23 20:19:23,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23 WrapperNode [2024-10-23 20:19:23,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 20:19:23,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 20:19:23,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 20:19:23,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 20:19:23,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,732 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 669 [2024-10-23 20:19:23,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 20:19:23,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 20:19:23,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 20:19:23,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 20:19:23,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,747 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,766 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 20:19:23,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,797 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,803 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,806 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 20:19:23,807 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 20:19:23,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 20:19:23,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 20:19:23,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (1/1) ... [2024-10-23 20:19:23,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 20:19:23,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:19:23,834 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 20:19:23,836 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 20:19:23,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 20:19:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 20:19:23,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 20:19:23,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 20:19:23,936 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 20:19:23,938 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 20:19:24,617 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-10-23 20:19:24,617 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 20:19:24,659 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 20:19:24,661 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 20:19:24,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:24 BoogieIcfgContainer [2024-10-23 20:19:24,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 20:19:24,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 20:19:24,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 20:19:24,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 20:19:24,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:19:23" (1/3) ... [2024-10-23 20:19:24,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91dc94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:24, skipping insertion in model container [2024-10-23 20:19:24,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:19:23" (2/3) ... [2024-10-23 20:19:24,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91dc94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:19:24, skipping insertion in model container [2024-10-23 20:19:24,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:24" (3/3) ... [2024-10-23 20:19:24,668 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label38.c [2024-10-23 20:19:24,680 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 20:19:24,680 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 20:19:24,735 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 20:19:24,739 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;@6e20d9b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 20:19:24,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 20:19:24,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 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 20:19:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-23 20:19:24,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:24,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:24,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:24,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:24,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1172681142, now seen corresponding path program 1 times [2024-10-23 20:19:24,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:24,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885272120] [2024-10-23 20:19:24,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:24,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:25,063 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 20:19:25,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885272120] [2024-10-23 20:19:25,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885272120] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:25,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:25,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:25,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467546351] [2024-10-23 20:19:25,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:25,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 20:19:25,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:25,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 20:19:25,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 20:19:25,093 INFO L87 Difference]: Start difference. First operand has 165 states, 163 states have (on average 1.9202453987730062) internal successors, (313), 164 states have internal predecessors, (313), 0 states have call successors, (0), 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 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 20:19:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:25,128 INFO L93 Difference]: Finished difference Result 329 states and 625 transitions. [2024-10-23 20:19:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 20:19:25,130 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-10-23 20:19:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:25,138 INFO L225 Difference]: With dead ends: 329 [2024-10-23 20:19:25,138 INFO L226 Difference]: Without dead ends: 163 [2024-10-23 20:19:25,140 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 20:19:25,142 INFO L432 NwaCegarLoop]: 248 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, 248 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 20:19:25,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 20:19:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-23 20:19:25,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2024-10-23 20:19:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5308641975308641) internal successors, (248), 162 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 20:19:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 248 transitions. [2024-10-23 20:19:25,176 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 248 transitions. Word has length 130 [2024-10-23 20:19:25,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:25,176 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 248 transitions. [2024-10-23 20:19:25,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 65.0) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 20:19:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 248 transitions. [2024-10-23 20:19:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-10-23 20:19:25,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:25,178 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:25,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 20:19:25,178 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:25,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:25,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1184126213, now seen corresponding path program 1 times [2024-10-23 20:19:25,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:25,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386843549] [2024-10-23 20:19:25,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:25,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:25,426 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 20:19:25,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:25,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386843549] [2024-10-23 20:19:25,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386843549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:25,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:25,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:25,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723630070] [2024-10-23 20:19:25,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:25,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:25,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:25,429 INFO L87 Difference]: Start difference. First operand 163 states and 248 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 20:19:25,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:25,873 INFO L93 Difference]: Finished difference Result 466 states and 712 transitions. [2024-10-23 20:19:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-10-23 20:19:25,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:25,876 INFO L225 Difference]: With dead ends: 466 [2024-10-23 20:19:25,879 INFO L226 Difference]: Without dead ends: 304 [2024-10-23 20:19:25,879 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 20:19:25,880 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 89 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:25,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 42 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:25,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-23 20:19:25,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-10-23 20:19:25,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.528052805280528) internal successors, (463), 303 states have internal predecessors, (463), 0 states have call successors, (0), 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 20:19:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 463 transitions. [2024-10-23 20:19:25,896 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 463 transitions. Word has length 130 [2024-10-23 20:19:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:25,896 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 463 transitions. [2024-10-23 20:19:25,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 20:19:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 463 transitions. [2024-10-23 20:19:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-23 20:19:25,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:25,909 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:25,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 20:19:25,910 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:25,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 450479023, now seen corresponding path program 1 times [2024-10-23 20:19:25,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:25,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302376425] [2024-10-23 20:19:25,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:25,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:26,043 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:26,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:26,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302376425] [2024-10-23 20:19:26,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302376425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:26,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:26,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:26,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859967924] [2024-10-23 20:19:26,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:26,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:26,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:26,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:26,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:26,045 INFO L87 Difference]: Start difference. First operand 304 states and 463 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 20:19:26,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:26,413 INFO L93 Difference]: Finished difference Result 901 states and 1374 transitions. [2024-10-23 20:19:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:26,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 141 [2024-10-23 20:19:26,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:26,416 INFO L225 Difference]: With dead ends: 901 [2024-10-23 20:19:26,416 INFO L226 Difference]: Without dead ends: 598 [2024-10-23 20:19:26,417 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 20:19:26,418 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 193 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:26,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 69 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-10-23 20:19:26,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 595. [2024-10-23 20:19:26,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 594 states have (on average 1.4781144781144782) internal successors, (878), 594 states have internal predecessors, (878), 0 states have call successors, (0), 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 20:19:26,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 878 transitions. [2024-10-23 20:19:26,443 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 878 transitions. Word has length 141 [2024-10-23 20:19:26,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:26,443 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 878 transitions. [2024-10-23 20:19:26,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 20:19:26,444 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 878 transitions. [2024-10-23 20:19:26,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-10-23 20:19:26,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:26,446 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:26,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 20:19:26,446 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:26,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash -562284582, now seen corresponding path program 1 times [2024-10-23 20:19:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:26,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74441646] [2024-10-23 20:19:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:26,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-23 20:19:26,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:26,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74441646] [2024-10-23 20:19:26,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74441646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:26,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:26,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:26,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124902371] [2024-10-23 20:19:26,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:26,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:26,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:26,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:26,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:26,671 INFO L87 Difference]: Start difference. First operand 595 states and 878 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 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 20:19:27,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:27,049 INFO L93 Difference]: Finished difference Result 1614 states and 2395 transitions. [2024-10-23 20:19:27,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:27,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 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 145 [2024-10-23 20:19:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:27,052 INFO L225 Difference]: With dead ends: 1614 [2024-10-23 20:19:27,052 INFO L226 Difference]: Without dead ends: 1020 [2024-10-23 20:19:27,055 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 20:19:27,058 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 143 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:27,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 119 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-23 20:19:27,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2024-10-23 20:19:27,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 878. [2024-10-23 20:19:27,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 877 states have (on average 1.3523375142531358) internal successors, (1186), 877 states have internal predecessors, (1186), 0 states have call successors, (0), 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 20:19:27,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1186 transitions. [2024-10-23 20:19:27,083 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1186 transitions. Word has length 145 [2024-10-23 20:19:27,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:27,083 INFO L471 AbstractCegarLoop]: Abstraction has 878 states and 1186 transitions. [2024-10-23 20:19:27,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 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 20:19:27,084 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1186 transitions. [2024-10-23 20:19:27,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-23 20:19:27,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:27,087 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:27,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 20:19:27,087 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:27,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:27,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1315785909, now seen corresponding path program 1 times [2024-10-23 20:19:27,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:27,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621084154] [2024-10-23 20:19:27,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:27,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:27,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-23 20:19:27,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:27,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621084154] [2024-10-23 20:19:27,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621084154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:27,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:27,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 20:19:27,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948833699] [2024-10-23 20:19:27,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:27,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:27,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:27,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:27,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:27,236 INFO L87 Difference]: Start difference. First operand 878 states and 1186 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 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 20:19:27,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:27,602 INFO L93 Difference]: Finished difference Result 2179 states and 3008 transitions. [2024-10-23 20:19:27,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:27,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 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 150 [2024-10-23 20:19:27,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:27,605 INFO L225 Difference]: With dead ends: 2179 [2024-10-23 20:19:27,606 INFO L226 Difference]: Without dead ends: 1302 [2024-10-23 20:19:27,607 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 20:19:27,607 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 145 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:27,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 248 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:19:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-10-23 20:19:27,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1301. [2024-10-23 20:19:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1300 states have (on average 1.273076923076923) internal successors, (1655), 1300 states have internal predecessors, (1655), 0 states have call successors, (0), 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 20:19:27,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1655 transitions. [2024-10-23 20:19:27,624 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1655 transitions. Word has length 150 [2024-10-23 20:19:27,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:27,624 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1655 transitions. [2024-10-23 20:19:27,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 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 20:19:27,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1655 transitions. [2024-10-23 20:19:27,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-23 20:19:27,626 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:27,627 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:27,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 20:19:27,627 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:27,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:27,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1576464853, now seen corresponding path program 1 times [2024-10-23 20:19:27,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:27,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384488038] [2024-10-23 20:19:27,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:27,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:27,678 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-23 20:19:27,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:27,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384488038] [2024-10-23 20:19:27,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384488038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:27,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 20:19:27,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 20:19:27,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349022879] [2024-10-23 20:19:27,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:27,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:27,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:27,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 20:19:27,681 INFO L87 Difference]: Start difference. First operand 1301 states and 1655 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 20:19:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:28,034 INFO L93 Difference]: Finished difference Result 3582 states and 4603 transitions. [2024-10-23 20:19:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:28,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 151 [2024-10-23 20:19:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:28,041 INFO L225 Difference]: With dead ends: 3582 [2024-10-23 20:19:28,041 INFO L226 Difference]: Without dead ends: 2282 [2024-10-23 20:19:28,043 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 20:19:28,046 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 188 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:28,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 75 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:19:28,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2024-10-23 20:19:28,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 1862. [2024-10-23 20:19:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1861 states have (on average 1.2385814078452444) internal successors, (2305), 1861 states have internal predecessors, (2305), 0 states have call successors, (0), 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 20:19:28,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2305 transitions. [2024-10-23 20:19:28,068 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2305 transitions. Word has length 151 [2024-10-23 20:19:28,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:28,068 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2305 transitions. [2024-10-23 20:19:28,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 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 20:19:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2305 transitions. [2024-10-23 20:19:28,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-23 20:19:28,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 20:19:28,072 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:28,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 20:19:28,072 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 20:19:28,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 20:19:28,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1861852393, now seen corresponding path program 1 times [2024-10-23 20:19:28,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 20:19:28,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370342374] [2024-10-23 20:19:28,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:28,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 20:19:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 20:19:28,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 20:19:28,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370342374] [2024-10-23 20:19:28,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370342374] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 20:19:28,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875753141] [2024-10-23 20:19:28,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 20:19:28,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:19:28,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 20:19:28,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 20:19:28,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 20:19:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 20:19:28,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 20:19:28,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 20:19:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-23 20:19:28,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 20:19:28,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875753141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 20:19:28,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 20:19:28,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-23 20:19:28,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56767344] [2024-10-23 20:19:28,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 20:19:28,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 20:19:28,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 20:19:28,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 20:19:28,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 20:19:28,574 INFO L87 Difference]: Start difference. First operand 1862 states and 2305 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 20:19:28,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 20:19:28,910 INFO L93 Difference]: Finished difference Result 4282 states and 5274 transitions. [2024-10-23 20:19:28,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 20:19:28,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 157 [2024-10-23 20:19:28,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 20:19:28,911 INFO L225 Difference]: With dead ends: 4282 [2024-10-23 20:19:28,911 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 20:19:28,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 20:19:28,914 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-23 20:19:28,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 63 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-23 20:19:28,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 20:19:28,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 20:19:28,915 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 20:19:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 20:19:28,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2024-10-23 20:19:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 20:19:28,915 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 20:19:28,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 20:19:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 20:19:28,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 20:19:28,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 20:19:28,932 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 20:19:29,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 20:19:29,122 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-23 20:19:29,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 20:19:29,149 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 20:19:29,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:19:29 BoogieIcfgContainer [2024-10-23 20:19:29,167 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 20:19:29,167 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 20:19:29,167 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 20:19:29,168 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 20:19:29,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:19:24" (3/4) ... [2024-10-23 20:19:29,171 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 20:19:29,192 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 20:19:29,193 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 20:19:29,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 20:19:29,194 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 20:19:29,312 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 20:19:29,313 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 20:19:29,313 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 20:19:29,313 INFO L158 Benchmark]: Toolchain (without parser) took 6079.37ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 120.0MB in the beginning and 81.8MB in the end (delta: 38.2MB). Peak memory consumption was 144.3MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,314 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 20:19:29,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.95ms. Allocated memory is still 176.2MB. Free memory was 119.6MB in the beginning and 91.4MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.40ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 85.6MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,314 INFO L158 Benchmark]: Boogie Preprocessor took 71.97ms. Allocated memory is still 176.2MB. Free memory was 85.6MB in the beginning and 80.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,315 INFO L158 Benchmark]: RCFGBuilder took 854.20ms. Allocated memory is still 176.2MB. Free memory was 80.1MB in the beginning and 85.3MB in the end (delta: -5.1MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,315 INFO L158 Benchmark]: TraceAbstraction took 4504.28ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 84.4MB in the beginning and 94.3MB in the end (delta: -9.9MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,315 INFO L158 Benchmark]: Witness Printer took 145.74ms. Allocated memory is still 281.0MB. Free memory was 94.3MB in the beginning and 81.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-23 20:19:29,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.95ms. Allocated memory is still 176.2MB. Free memory was 119.6MB in the beginning and 91.4MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.40ms. Allocated memory is still 176.2MB. Free memory was 91.4MB in the beginning and 85.6MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.97ms. Allocated memory is still 176.2MB. Free memory was 85.6MB in the beginning and 80.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 854.20ms. Allocated memory is still 176.2MB. Free memory was 80.1MB in the beginning and 85.3MB in the end (delta: -5.1MB). Peak memory consumption was 42.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4504.28ms. Allocated memory was 176.2MB in the beginning and 281.0MB in the end (delta: 104.9MB). Free memory was 84.4MB in the beginning and 94.3MB in the end (delta: -9.9MB). Peak memory consumption was 93.7MB. Max. memory is 16.1GB. * Witness Printer took 145.74ms. Allocated memory is still 281.0MB. Free memory was 94.3MB in the beginning and 81.8MB in the end (delta: 12.6MB). 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: 575]: 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, 165 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 805 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 805 mSDsluCounter, 864 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 435 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2232 IncrementalHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 435 mSolverCounterUnsat, 785 mSDtfsCounter, 2232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1862occurred in iteration=6, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 566 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1161 NumberOfCodeBlocks, 1161 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1153 ConstructedInterpolants, 0 QuantifiedInterpolants, 3535 SizeOfPredicates, 0 NumberOfNonLiveVariables, 281 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 138/154 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: 616]: Loop Invariant Derived loop invariant: (((((8 <= a17) && (a11 == 0)) && (a25 != 1)) || (a28 < 11)) || (a19 == 1)) RESULT: Ultimate proved your program to be correct! [2024-10-23 20:19:29,352 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