./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/mono-crafted_11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loops-crafted-1/mono-crafted_11.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 c506323d3bd63f7e6137c28fc1be825d2491f66f4e75ccbab60530df37ca16f1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 13:22:33,474 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 13:22:33,535 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 13:22:33,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 13:22:33,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 13:22:33,574 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 13:22:33,575 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 13:22:33,575 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 13:22:33,576 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 13:22:33,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 13:22:33,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 13:22:33,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 13:22:33,578 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 13:22:33,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 13:22:33,579 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 13:22:33,579 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 13:22:33,580 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 13:22:33,580 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 13:22:33,580 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 13:22:33,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 13:22:33,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 13:22:33,583 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 13:22:33,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 13:22:33,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 13:22:33,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 13:22:33,584 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 13:22:33,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 13:22:33,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 13:22:33,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 13:22:33,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 13:22:33,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 13:22:33,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 13:22:33,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:22:33,587 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 13:22:33,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 13:22:33,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 13:22:33,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 13:22:33,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 13:22:33,588 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 13:22:33,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 13:22:33,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 13:22:33,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 13:22:33,589 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c506323d3bd63f7e6137c28fc1be825d2491f66f4e75ccbab60530df37ca16f1 [2024-11-18 13:22:33,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 13:22:33,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 13:22:33,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 13:22:33,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 13:22:33,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 13:22:33,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/mono-crafted_11.c [2024-11-18 13:22:35,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 13:22:35,347 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 13:22:35,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/mono-crafted_11.c [2024-11-18 13:22:35,354 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7058a6f/515ae0189f2f419b981ba8de7b70a1f4/FLAG46d129ecc [2024-11-18 13:22:35,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7058a6f/515ae0189f2f419b981ba8de7b70a1f4 [2024-11-18 13:22:35,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 13:22:35,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 13:22:35,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 13:22:35,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 13:22:35,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 13:22:35,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2b41a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35, skipping insertion in model container [2024-11-18 13:22:35,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,397 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 13:22:35,545 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/mono-crafted_11.c[319,332] [2024-11-18 13:22:35,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:22:35,565 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 13:22:35,574 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/mono-crafted_11.c[319,332] [2024-11-18 13:22:35,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:22:35,591 INFO L204 MainTranslator]: Completed translation [2024-11-18 13:22:35,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35 WrapperNode [2024-11-18 13:22:35,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 13:22:35,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 13:22:35,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 13:22:35,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 13:22:35,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,615 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2024-11-18 13:22:35,616 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 13:22:35,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 13:22:35,617 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 13:22:35,617 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 13:22:35,624 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,625 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,633 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 13:22:35,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,639 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 13:22:35,641 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 13:22:35,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 13:22:35,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 13:22:35,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (1/1) ... [2024-11-18 13:22:35,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:22:35,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:22:35,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 13:22:35,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 13:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 13:22:35,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 13:22:35,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 13:22:35,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 13:22:35,777 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 13:22:35,779 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 13:22:35,888 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-11-18 13:22:35,891 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 13:22:35,902 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 13:22:35,903 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 13:22:35,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:22:35 BoogieIcfgContainer [2024-11-18 13:22:35,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 13:22:35,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 13:22:35,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 13:22:35,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 13:22:35,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:22:35" (1/3) ... [2024-11-18 13:22:35,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6436dc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:22:35, skipping insertion in model container [2024-11-18 13:22:35,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:22:35" (2/3) ... [2024-11-18 13:22:35,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6436dc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:22:35, skipping insertion in model container [2024-11-18 13:22:35,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:22:35" (3/3) ... [2024-11-18 13:22:35,914 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_11.c [2024-11-18 13:22:35,929 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 13:22:35,930 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 13:22:35,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 13:22:35,998 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;@49e27265, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 13:22:35,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 13:22:36,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-18 13:22:36,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:22:36,012 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-18 13:22:36,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:22:36,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:22:36,018 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2024-11-18 13:22:36,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:22:36,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039300955] [2024-11-18 13:22:36,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:22:36,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:22:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:22:36,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:22:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039300955] [2024-11-18 13:22:36,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039300955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:22:36,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:22:36,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 13:22:36,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981617767] [2024-11-18 13:22:36,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:22:36,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 13:22:36,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:22:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 13:22:36,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 13:22:36,168 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:22:36,180 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2024-11-18 13:22:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 13:22:36,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-18 13:22:36,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:22:36,189 INFO L225 Difference]: With dead ends: 20 [2024-11-18 13:22:36,189 INFO L226 Difference]: Without dead ends: 8 [2024-11-18 13:22:36,191 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 [2024-11-18 13:22:36,196 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:22:36,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:22:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-18 13:22:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-18 13:22:36,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2024-11-18 13:22:36,222 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2024-11-18 13:22:36,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:22:36,222 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2024-11-18 13:22:36,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,222 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-11-18 13:22:36,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-18 13:22:36,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:22:36,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-18 13:22:36,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 13:22:36,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:22:36,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:22:36,224 INFO L85 PathProgramCache]: Analyzing trace with hash 889639793, now seen corresponding path program 1 times [2024-11-18 13:22:36,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:22:36,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712359912] [2024-11-18 13:22:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:22:36,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:22:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:22:36,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:36,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:22:36,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712359912] [2024-11-18 13:22:36,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712359912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:22:36,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:22:36,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 13:22:36,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6658780] [2024-11-18 13:22:36,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:22:36,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:22:36,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:22:36,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:22:36,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 13:22:36,363 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:22:36,388 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2024-11-18 13:22:36,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:22:36,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-11-18 13:22:36,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:22:36,389 INFO L225 Difference]: With dead ends: 16 [2024-11-18 13:22:36,390 INFO L226 Difference]: Without dead ends: 10 [2024-11-18 13:22:36,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 13:22:36,393 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:22:36,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:22:36,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-18 13:22:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-18 13:22:36,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2024-11-18 13:22:36,397 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2024-11-18 13:22:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:22:36,397 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2024-11-18 13:22:36,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,398 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-18 13:22:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-18 13:22:36,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:22:36,398 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:22:36,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 13:22:36,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:22:36,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:22:36,399 INFO L85 PathProgramCache]: Analyzing trace with hash 295691924, now seen corresponding path program 1 times [2024-11-18 13:22:36,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:22:36,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505911377] [2024-11-18 13:22:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:22:36,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:22:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:22:36,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:36,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:22:36,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505911377] [2024-11-18 13:22:36,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505911377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:22:36,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836372765] [2024-11-18 13:22:36,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:22:36,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:36,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:22:36,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:22:36,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 13:22:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:22:36,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 13:22:36,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:22:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:36,686 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:22:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:36,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836372765] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:22:36,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:22:36,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 13:22:36,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464157307] [2024-11-18 13:22:36,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:22:36,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:22:36,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:22:36,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:22:36,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:22:36,741 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:22:36,815 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2024-11-18 13:22:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:22:36,816 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 8 [2024-11-18 13:22:36,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:22:36,817 INFO L225 Difference]: With dead ends: 20 [2024-11-18 13:22:36,817 INFO L226 Difference]: Without dead ends: 14 [2024-11-18 13:22:36,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:22:36,819 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:22:36,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:22:36,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-18 13:22:36,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-11-18 13:22:36,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-11-18 13:22:36,826 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 8 [2024-11-18 13:22:36,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:22:36,827 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-11-18 13:22:36,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:36,827 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-18 13:22:36,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-18 13:22:36,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:22:36,828 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:22:36,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 13:22:37,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:37,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:22:37,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:22:37,033 INFO L85 PathProgramCache]: Analyzing trace with hash 572634524, now seen corresponding path program 1 times [2024-11-18 13:22:37,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:22:37,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504680549] [2024-11-18 13:22:37,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:22:37,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:22:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:22:37,190 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:37,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:22:37,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504680549] [2024-11-18 13:22:37,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504680549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:22:37,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425412974] [2024-11-18 13:22:37,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:22:37,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:37,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:22:37,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:22:37,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 13:22:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:22:37,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-18 13:22:37,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:22:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:37,297 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:22:37,376 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 13:22:37,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425412974] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:22:37,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:22:37,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 5] total 10 [2024-11-18 13:22:37,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883225356] [2024-11-18 13:22:37,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:22:37,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 13:22:37,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:22:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 13:22:37,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:22:37,379 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:22:37,463 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-18 13:22:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:22:37,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 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 12 [2024-11-18 13:22:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:22:37,465 INFO L225 Difference]: With dead ends: 27 [2024-11-18 13:22:37,466 INFO L226 Difference]: Without dead ends: 18 [2024-11-18 13:22:37,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:22:37,467 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:22:37,467 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:22:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-18 13:22:37,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2024-11-18 13:22:37,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-18 13:22:37,477 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2024-11-18 13:22:37,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:22:37,478 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-18 13:22:37,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:37,478 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-18 13:22:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-18 13:22:37,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:22:37,479 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:22:37,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 13:22:37,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-18 13:22:37,680 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:22:37,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:22:37,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1176853889, now seen corresponding path program 2 times [2024-11-18 13:22:37,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:22:37,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796750557] [2024-11-18 13:22:37,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 13:22:37,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:22:37,707 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 13:22:37,710 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 13:22:37,833 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:37,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:22:37,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796750557] [2024-11-18 13:22:37,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796750557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:22:37,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797103416] [2024-11-18 13:22:37,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 13:22:37,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:37,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:22:37,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:22:37,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 13:22:37,872 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 13:22:37,873 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 13:22:37,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-18 13:22:37,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:22:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:37,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:22:38,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 13:22:38,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797103416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:22:38,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:22:38,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2024-11-18 13:22:38,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081866126] [2024-11-18 13:22:38,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:22:38,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 13:22:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:22:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 13:22:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:22:38,042 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:38,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:22:38,284 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2024-11-18 13:22:38,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 13:22:38,286 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 14 [2024-11-18 13:22:38,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:22:38,287 INFO L225 Difference]: With dead ends: 36 [2024-11-18 13:22:38,288 INFO L226 Difference]: Without dead ends: 27 [2024-11-18 13:22:38,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-18 13:22:38,290 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:22:38,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:22:38,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-18 13:22:38,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-18 13:22:38,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:38,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-18 13:22:38,321 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 14 [2024-11-18 13:22:38,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:22:38,322 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-18 13:22:38,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:38,322 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-18 13:22:38,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-18 13:22:38,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:22:38,325 INFO L215 NwaCegarLoop]: trace histogram [10, 9, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:22:38,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 13:22:38,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:38,526 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:22:38,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:22:38,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1990618095, now seen corresponding path program 3 times [2024-11-18 13:22:38,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:22:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363974387] [2024-11-18 13:22:38,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 13:22:38,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:22:38,555 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-18 13:22:38,555 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 13:22:38,765 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-18 13:22:38,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:22:38,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363974387] [2024-11-18 13:22:38,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363974387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:22:38,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104152734] [2024-11-18 13:22:38,767 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 13:22:38,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:38,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:22:38,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:22:38,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 13:22:38,812 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-18 13:22:38,812 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 13:22:38,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 13:22:38,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:22:38,859 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-18 13:22:38,860 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:22:38,903 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-18 13:22:38,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104152734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:22:38,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:22:38,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-11-18 13:22:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347408934] [2024-11-18 13:22:38,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:22:38,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 13:22:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:22:38,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 13:22:38,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:22:38,907 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:22:39,090 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2024-11-18 13:22:39,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 13:22:39,090 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 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 26 [2024-11-18 13:22:39,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:22:39,091 INFO L225 Difference]: With dead ends: 46 [2024-11-18 13:22:39,091 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 13:22:39,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:22:39,092 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 14 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:22:39,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:22:39,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 13:22:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 13:22:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:39,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 13:22:39,096 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2024-11-18 13:22:39,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:22:39,096 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 13:22:39,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 13:22:39,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 13:22:39,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 13:22:39,101 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 13:22:39,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-18 13:22:39,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:22:39,308 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-11-18 13:22:39,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 13:22:39,554 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 13:22:39,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:22:39 BoogieIcfgContainer [2024-11-18 13:22:39,573 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 13:22:39,573 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 13:22:39,573 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 13:22:39,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 13:22:39,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:22:35" (3/4) ... [2024-11-18 13:22:39,577 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 13:22:39,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-18 13:22:39,585 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-18 13:22:39,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-18 13:22:39,586 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 13:22:39,672 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 13:22:39,672 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 13:22:39,673 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 13:22:39,673 INFO L158 Benchmark]: Toolchain (without parser) took 4303.73ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 121.5MB in the beginning and 159.4MB in the end (delta: -37.9MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-11-18 13:22:39,673 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 13:22:39,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.02ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 110.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 13:22:39,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.56ms. Allocated memory is still 153.1MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 13:22:39,674 INFO L158 Benchmark]: Boogie Preprocessor took 23.66ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 107.0MB in the end (delta: 929.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 13:22:39,675 INFO L158 Benchmark]: RCFGBuilder took 262.58ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 96.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-18 13:22:39,675 INFO L158 Benchmark]: TraceAbstraction took 3667.83ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 96.3MB in the beginning and 163.6MB in the end (delta: -67.3MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-11-18 13:22:39,675 INFO L158 Benchmark]: Witness Printer took 99.35ms. Allocated memory is still 192.9MB. Free memory was 163.6MB in the beginning and 159.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 13:22:39,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 121.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.02ms. Allocated memory is still 153.1MB. Free memory was 121.5MB in the beginning and 110.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.56ms. Allocated memory is still 153.1MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.66ms. Allocated memory is still 153.1MB. Free memory was 107.9MB in the beginning and 107.0MB in the end (delta: 929.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.58ms. Allocated memory is still 153.1MB. Free memory was 107.0MB in the beginning and 96.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3667.83ms. Allocated memory was 153.1MB in the beginning and 192.9MB in the end (delta: 39.8MB). Free memory was 96.3MB in the beginning and 163.6MB in the end (delta: -67.3MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Witness Printer took 99.35ms. Allocated memory is still 192.9MB. Free memory was 163.6MB in the beginning and 159.4MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 38 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=5, InterpolantAutomatonStates: 40, 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 132 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 527 SizeOfPredicates, 2 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 316/378 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: 8]: Loop Invariant Derived loop invariant: ((((((unsigned long long) 4294967295 * x) + 10000000) % 4294967296) <= 9999999) || ((x <= (50000000 + (x / 2))) && ((x % 2) == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-18 13:22:39,705 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