./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Ackermann-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/termination-crafted/Ackermann-1.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', 'bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Ackermann-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:50:59,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:50:59,558 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-07 19:50:59,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:50:59,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:50:59,588 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:50:59,589 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:50:59,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:50:59,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:50:59,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:50:59,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:50:59,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:50:59,589 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:50:59,589 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:50:59,589 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:50:59,590 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 19:50:59,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:50:59,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:50:59,591 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:50:59,591 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:50:59,591 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:50:59,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:50:59,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:50:59,591 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:50:59,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 19:50:59,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:50:59,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:50:59,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:50:59,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:50:59,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:50:59,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:50:59,594 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 [2024-11-07 19:50:59,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:50:59,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:50:59,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:50:59,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:50:59,884 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:50:59,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2024-11-07 19:51:01,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:51:01,439 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:51:01,440 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2024-11-07 19:51:01,447 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb2986407/5aab62eea1a8439d858fb585dc86d1c3/FLAG9038f3c22 [2024-11-07 19:51:01,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/eb2986407/5aab62eea1a8439d858fb585dc86d1c3 [2024-11-07 19:51:01,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:51:01,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:51:01,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:51:01,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:51:01,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:51:01,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:01,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510a51cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01, skipping insertion in model container [2024-11-07 19:51:01,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:01,814 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:51:01,945 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:51:01,952 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:51:01,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:51:01,977 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:51:01,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01 WrapperNode [2024-11-07 19:51:01,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:51:01,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:51:01,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:51:01,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:51:01,985 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:01,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,002 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-07 19:51:02,003 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:51:02,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:51:02,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:51:02,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:51:02,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,018 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-07 19:51:02,018 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,020 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,023 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,024 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,028 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:51:02,029 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:51:02,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:51:02,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:51:02,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (1/1) ... [2024-11-07 19:51:02,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:51:02,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:51:02,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 19:51:02,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 19:51:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2024-11-07 19:51:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2024-11-07 19:51:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:51:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:51:02,154 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:51:02,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:51:02,298 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-07 19:51:02,298 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:51:02,309 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:51:02,310 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 19:51:02,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:02 BoogieIcfgContainer [2024-11-07 19:51:02,310 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:51:02,313 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:51:02,313 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:51:02,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:51:02,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:51:01" (1/3) ... [2024-11-07 19:51:02,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e5ba7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:51:02, skipping insertion in model container [2024-11-07 19:51:02,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:51:01" (2/3) ... [2024-11-07 19:51:02,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e5ba7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:51:02, skipping insertion in model container [2024-11-07 19:51:02,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:02" (3/3) ... [2024-11-07 19:51:02,320 INFO L112 eAbstractionObserver]: Analyzing ICFG Ackermann-1.c [2024-11-07 19:51:02,335 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:51:02,335 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-07 19:51:02,397 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:51:02,411 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;@192ebf5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:51:02,412 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-07 19:51:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 29 states have internal predecessors, (32), 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) [2024-11-07 19:51:02,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-07 19:51:02,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:51:02,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:51:02,423 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting AckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [AckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-07 19:51:02,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:51:02,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1089084946, now seen corresponding path program 1 times [2024-11-07 19:51:02,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:51:02,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477866893] [2024-11-07 19:51:02,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:51:02,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:51:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:51:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 19:51:02,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:51:02,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477866893] [2024-11-07 19:51:02,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477866893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:51:02,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:51:02,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:51:02,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237134892] [2024-11-07 19:51:02,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:51:02,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:51:02,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:51:02,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:51:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:51:02,670 INFO L87 Difference]: Start difference. First operand has 35 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 29 states have internal predecessors, (32), 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 5 states, 3 states have (on average 2.0) 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) [2024-11-07 19:51:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 19:51:02,813 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2024-11-07 19:51:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:51:02,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) 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 [2024-11-07 19:51:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 19:51:02,824 INFO L225 Difference]: With dead ends: 65 [2024-11-07 19:51:02,824 INFO L226 Difference]: Without dead ends: 58 [2024-11-07 19:51:02,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:51:02,831 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 36 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 19:51:02,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 112 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 19:51:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-07 19:51:02,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2024-11-07 19:51:02,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 41 states have internal predecessors, (51), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-07 19:51:02,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 64 transitions. [2024-11-07 19:51:02,870 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 64 transitions. Word has length 7 [2024-11-07 19:51:02,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 19:51:02,871 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 64 transitions. [2024-11-07 19:51:02,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) 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) [2024-11-07 19:51:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2024-11-07 19:51:02,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 19:51:02,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 19:51:02,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:51:02,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:51:02,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting AckErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [AckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, AckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-07 19:51:02,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:51:02,873 INFO L85 PathProgramCache]: Analyzing trace with hash -598105005, now seen corresponding path program 1 times [2024-11-07 19:51:02,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:51:02,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986815033] [2024-11-07 19:51:02,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:51:02,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:51:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:51:02,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 19:51:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:51:02,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 19:51:02,948 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 19:51:02,950 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location AckErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-07 19:51:02,951 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-07 19:51:02,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-07 19:51:02,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-07 19:51:02,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-07 19:51:02,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-07 19:51:02,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-07 19:51:02,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location AckErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-07 19:51:02,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:51:02,956 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-07 19:51:02,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:51:02,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:51:02 BoogieIcfgContainer [2024-11-07 19:51:02,975 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:51:02,976 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:51:02,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:51:02,976 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:51:02,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:51:02" (3/4) ... [2024-11-07 19:51:02,979 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-07 19:51:03,007 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 19:51:03,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:51:03,010 INFO L158 Benchmark]: Toolchain (without parser) took 1210.79ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 72.1MB in the end (delta: 4.8MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-11-07 19:51:03,010 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:51:03,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.87ms. Allocated memory is still 100.7MB. Free memory was 76.7MB in the beginning and 66.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:51:03,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.66ms. Allocated memory is still 100.7MB. Free memory was 66.6MB in the beginning and 65.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:51:03,011 INFO L158 Benchmark]: Boogie Preprocessor took 25.55ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 64.6MB in the end (delta: 899.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:51:03,012 INFO L158 Benchmark]: RCFGBuilder took 281.19ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 54.5MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:51:03,012 INFO L158 Benchmark]: TraceAbstraction took 661.84ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 73.9MB in the end (delta: -19.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2024-11-07 19:51:03,012 INFO L158 Benchmark]: Witness Printer took 31.89ms. Allocated memory is still 100.7MB. Free memory was 73.9MB in the beginning and 72.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:51:03,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 83.9MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.87ms. Allocated memory is still 100.7MB. Free memory was 76.7MB in the beginning and 66.6MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.66ms. Allocated memory is still 100.7MB. Free memory was 66.6MB in the beginning and 65.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.55ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 64.6MB in the end (delta: 899.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.19ms. Allocated memory is still 100.7MB. Free memory was 64.6MB in the beginning and 54.5MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 661.84ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 73.9MB in the end (delta: -19.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. * Witness Printer took 31.89ms. Allocated memory is still 100.7MB. Free memory was 73.9MB in the beginning and 72.1MB in the end (delta: 1.8MB). There was no memory consumed. 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: 10]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x = __VERIFIER_nondet_int(); [L17] int y = __VERIFIER_nondet_int(); [L18] COND FALSE !(x < 0 || y < 0) VAL [x=0, y=2147483647] [L21] CALL Ack(x, y) VAL [\old(m)=0, \old(n)=2147483647] [L10] COND TRUE m == 0 VAL [\old(m)=0, \old(n)=2147483647, n=2147483647] [L10] n+1 VAL [\old(m)=0, \old(n)=2147483647] - UnprovableResult [Line: 10]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 11]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 12]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 12]: 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, 35 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 112 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 31 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=1, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2024-11-07 19:51:03,039 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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)