./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/joey.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 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/termination-crafted-lit/joey.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b8eecb1f582817a24edea1132ecb15ddc358f67da7ed612a076c099e943ee704 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:14:18,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:14:19,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-14 20:14:19,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:14:19,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:14:19,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:14:19,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:14:19,061 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:14:19,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:14:19,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:14:19,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:14:19,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:14:19,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:14:19,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:14:19,066 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:14:19,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:14:19,067 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:14:19,067 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:14:19,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:14:19,068 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:14:19,068 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:14:19,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:14:19,071 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:14:19,071 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:14:19,071 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:14:19,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:14:19,072 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:14:19,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:14:19,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:14:19,073 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:14:19,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:14:19,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:14:19,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:14:19,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:14:19,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:14:19,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:14:19,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:14:19,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:14:19,076 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:14:19,076 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:14:19,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:14:19,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8eecb1f582817a24edea1132ecb15ddc358f67da7ed612a076c099e943ee704 [2024-10-14 20:14:19,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:14:19,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:14:19,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:14:19,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:14:19,330 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:14:19,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/joey.c [2024-10-14 20:14:20,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:14:20,978 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:14:20,979 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/joey.c [2024-10-14 20:14:20,989 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78c4199d2/186458414c2c4918832fb6582bd727a4/FLAGce131898a [2024-10-14 20:14:21,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78c4199d2/186458414c2c4918832fb6582bd727a4 [2024-10-14 20:14:21,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:14:21,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:14:21,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:14:21,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:14:21,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:14:21,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f02f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21, skipping insertion in model container [2024-10-14 20:14:21,377 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:14:21,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:14:21,541 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:14:21,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:14:21,568 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:14:21,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21 WrapperNode [2024-10-14 20:14:21,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:14:21,570 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:14:21,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:14:21,571 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:14:21,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,594 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-10-14 20:14:21,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:14:21,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:14:21,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:14:21,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:14:21,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,612 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-14 20:14:21,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,616 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:14:21,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:14:21,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:14:21,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:14:21,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (1/1) ... [2024-10-14 20:14:21,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:14:21,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:14:21,653 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) [2024-10-14 20:14:21,655 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 [2024-10-14 20:14:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-10-14 20:14:21,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-10-14 20:14:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:14:21,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:14:21,768 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:14:21,770 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:14:21,968 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-14 20:14:21,968 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:14:21,984 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:14:21,985 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 20:14:21,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:14:21 BoogieIcfgContainer [2024-10-14 20:14:21,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:14:21,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:14:21,987 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:14:21,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:14:21,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:14:21" (1/3) ... [2024-10-14 20:14:21,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593d5e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:14:21, skipping insertion in model container [2024-10-14 20:14:21,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:14:21" (2/3) ... [2024-10-14 20:14:21,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@593d5e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:14:21, skipping insertion in model container [2024-10-14 20:14:21,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:14:21" (3/3) ... [2024-10-14 20:14:21,997 INFO L112 eAbstractionObserver]: Analyzing ICFG joey.c [2024-10-14 20:14:22,016 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:14:22,017 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-14 20:14:22,075 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:14:22,085 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;@491bc3c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:14:22,085 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 20:14:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.588235294117647) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 20:14:22,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:14:22,097 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:22,098 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:14:22,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:14:22,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:22,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1990778332, now seen corresponding path program 1 times [2024-10-14 20:14:22,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:22,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215610872] [2024-10-14 20:14:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:22,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:22,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:22,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215610872] [2024-10-14 20:14:22,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215610872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:14:22,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:14:22,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:14:22,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036885007] [2024-10-14 20:14:22,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:14:22,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:14:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:22,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:14:22,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:14:22,421 INFO L87 Difference]: Start difference. First operand has 31 states, 17 states have (on average 1.588235294117647) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:22,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:22,493 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2024-10-14 20:14:22,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:14:22,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-14 20:14:22,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:22,504 INFO L225 Difference]: With dead ends: 33 [2024-10-14 20:14:22,504 INFO L226 Difference]: Without dead ends: 28 [2024-10-14 20:14:22,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:14:22,511 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:22,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:14:22,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-14 20:14:22,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-10-14 20:14:22,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.4375) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 20:14:22,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-10-14 20:14:22,547 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 6 [2024-10-14 20:14:22,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:22,547 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-10-14 20:14:22,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:22,548 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-10-14 20:14:22,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 20:14:22,549 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:22,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:14:22,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:14:22,549 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:14:22,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:22,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1584586107, now seen corresponding path program 1 times [2024-10-14 20:14:22,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:22,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971177154] [2024-10-14 20:14:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:22,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:22,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:14:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:14:22,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:14:22,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971177154] [2024-10-14 20:14:22,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971177154] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:14:22,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:14:22,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:14:22,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051865731] [2024-10-14 20:14:22,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:14:22,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:14:22,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:14:22,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:14:22,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:14:22,783 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:14:22,920 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2024-10-14 20:14:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:14:22,922 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-14 20:14:22,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:14:22,923 INFO L225 Difference]: With dead ends: 51 [2024-10-14 20:14:22,923 INFO L226 Difference]: Without dead ends: 44 [2024-10-14 20:14:22,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:14:22,925 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 37 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:14:22,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 61 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:14:22,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-10-14 20:14:22,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-10-14 20:14:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 33 states have internal predecessors, (38), 7 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:14:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2024-10-14 20:14:22,939 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 7 [2024-10-14 20:14:22,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:14:22,940 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2024-10-14 20:14:22,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:14:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-10-14 20:14:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-14 20:14:22,941 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:14:22,941 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:14:22,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:14:22,941 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:14:22,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:14:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1584579156, now seen corresponding path program 1 times [2024-10-14 20:14:22,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:14:22,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156570707] [2024-10-14 20:14:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:14:22,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:14:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 20:14:22,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-14 20:14:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-14 20:14:22,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-14 20:14:22,981 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-14 20:14:22,983 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-10-14 20:14:22,984 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-10-14 20:14:22,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-10-14 20:14:22,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-10-14 20:14:22,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-10-14 20:14:22,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-10-14 20:14:22,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-10-14 20:14:22,986 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-10-14 20:14:22,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:14:22,990 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-14 20:14:23,009 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 20:14:23,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 08:14:23 BoogieIcfgContainer [2024-10-14 20:14:23,012 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 20:14:23,013 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 20:14:23,013 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 20:14:23,013 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 20:14:23,015 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:14:21" (3/4) ... [2024-10-14 20:14:23,016 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-14 20:14:23,052 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 20:14:23,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 20:14:23,054 INFO L158 Benchmark]: Toolchain (without parser) took 1686.31ms. Allocated memory is still 142.6MB. Free memory was 90.7MB in the beginning and 57.9MB in the end (delta: 32.7MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-10-14 20:14:23,054 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 103.7MB in the end (delta: 159.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:14:23,054 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.26ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 79.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-14 20:14:23,055 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.03ms. Allocated memory is still 142.6MB. Free memory was 79.8MB in the beginning and 78.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:14:23,055 INFO L158 Benchmark]: Boogie Preprocessor took 26.33ms. Allocated memory is still 142.6MB. Free memory was 78.4MB in the beginning and 77.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 20:14:23,056 INFO L158 Benchmark]: RCFGBuilder took 363.42ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 109.7MB in the end (delta: -32.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-10-14 20:14:23,056 INFO L158 Benchmark]: TraceAbstraction took 1024.80ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 60.0MB in the end (delta: 48.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-10-14 20:14:23,056 INFO L158 Benchmark]: Witness Printer took 40.29ms. Allocated memory is still 142.6MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 20:14:23,058 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 103.7MB in the end (delta: 159.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.26ms. Allocated memory is still 142.6MB. Free memory was 90.4MB in the beginning and 79.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.03ms. Allocated memory is still 142.6MB. Free memory was 79.8MB in the beginning and 78.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.33ms. Allocated memory is still 142.6MB. Free memory was 78.4MB in the beginning and 77.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.42ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 109.7MB in the end (delta: -32.5MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1024.80ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 60.0MB in the end (delta: 48.9MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 40.29ms. Allocated memory is still 142.6MB. Free memory was 60.0MB in the beginning and 57.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; VAL [x=2147483647] [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647] - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 40 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-14 20:14:23,088 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)