./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/termination-memory-alloca/openbsd_cstrlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version da043454 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/termination-memory-alloca/openbsd_cstrlen-alloca-2.i -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 fa1c4f718d55e1cdd983ccc3852e93608388aa2755030644290199672f6ec657 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:24:29,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:24:30,011 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-04-30 10:24:30,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:24:30,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:24:30,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:24:30,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:24:30,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:24:30,032 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:24:30,032 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:24:30,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:24:30,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:24:30,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:24:30,033 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:24:30,033 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:24:30,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:24:30,034 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:24:30,035 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:24:30,035 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:24:30,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:24:30,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:24:30,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:24:30,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:24:30,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:24:30,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:24:30,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:24:30,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:24:30,036 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/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 -> fa1c4f718d55e1cdd983ccc3852e93608388aa2755030644290199672f6ec657 [2025-04-30 10:24:30,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:24:30,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:24:30,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:24:30,258 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:24:30,259 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:24:30,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2025-04-30 10:24:31,547 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc8e5979b/f8ef1d28f5784a91a983afff364e4892/FLAGcbf2dd4f4 [2025-04-30 10:24:31,774 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:24:31,780 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/termination-memory-alloca/openbsd_cstrlen-alloca-2.i [2025-04-30 10:24:31,789 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc8e5979b/f8ef1d28f5784a91a983afff364e4892/FLAGcbf2dd4f4 [2025-04-30 10:24:32,597 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc8e5979b/f8ef1d28f5784a91a983afff364e4892 [2025-04-30 10:24:32,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:24:32,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:24:32,602 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:24:32,602 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:24:32,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:24:32,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c693347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32, skipping insertion in model container [2025-04-30 10:24:32,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,625 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:24:32,829 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:24:32,837 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:24:32,872 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:24:32,887 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:24:32,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32 WrapperNode [2025-04-30 10:24:32,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:24:32,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:24:32,888 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:24:32,888 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:24:32,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,920 INFO L138 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2025-04-30 10:24:32,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:24:32,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:24:32,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:24:32,922 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:24:32,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,935 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2025-04-30 10:24:32,935 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,935 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,938 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,939 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:24:32,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:24:32,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:24:32,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:24:32,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (1/1) ... [2025-04-30 10:24:32,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:24:32,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:24:32,968 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) [2025-04-30 10:24:32,972 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 [2025-04-30 10:24:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:24:32,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:24:32,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:24:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:24:32,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:24:32,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:24:33,063 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:24:33,064 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:24:33,148 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-04-30 10:24:33,148 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:24:33,156 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:24:33,158 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:24:33,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:24:33 BoogieIcfgContainer [2025-04-30 10:24:33,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:24:33,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:24:33,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:24:33,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:24:33,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:24:32" (1/3) ... [2025-04-30 10:24:33,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50524f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:24:33, skipping insertion in model container [2025-04-30 10:24:33,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:32" (2/3) ... [2025-04-30 10:24:33,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50524f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:24:33, skipping insertion in model container [2025-04-30 10:24:33,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:24:33" (3/3) ... [2025-04-30 10:24:33,166 INFO L128 eAbstractionObserver]: Analyzing ICFG openbsd_cstrlen-alloca-2.i [2025-04-30 10:24:33,178 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:24:33,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG openbsd_cstrlen-alloca-2.i that has 1 procedures, 16 locations, 18 edges, 1 initial locations, 1 loop locations, and 2 error locations. [2025-04-30 10:24:33,222 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:24:33,232 INFO L340 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;@6aea5cc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:24:33,232 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-30 10:24:33,236 INFO L278 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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) [2025-04-30 10:24:33,240 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-04-30 10:24:33,240 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:24:33,240 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-04-30 10:24:33,240 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-04-30 10:24:33,244 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:24:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash 28693827, now seen corresponding path program 1 times [2025-04-30 10:24:33,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:24:33,250 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215039624] [2025-04-30 10:24:33,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:33,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:24:33,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-30 10:24:33,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-30 10:24:33,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:33,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:24:33,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:24:33,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:24:33,400 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215039624] [2025-04-30 10:24:33,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215039624] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:24:33,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:24:33,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:24:33,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614022538] [2025-04-30 10:24:33,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:24:33,405 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:24:33,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:24:33,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:24:33,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:24:33,421 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 15 states have internal predecessors, (18), 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 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-04-30 10:24:33,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:24:33,454 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2025-04-30 10:24:33,455 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:24:33,456 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-04-30 10:24:33,456 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:24:33,459 INFO L225 Difference]: With dead ends: 21 [2025-04-30 10:24:33,459 INFO L226 Difference]: Without dead ends: 7 [2025-04-30 10:24:33,461 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:24:33,463 INFO L437 NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:24:33,466 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 20 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:24:33,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-04-30 10:24:33,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-04-30 10:24:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2025-04-30 10:24:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2025-04-30 10:24:33,488 INFO L79 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2025-04-30 10:24:33,488 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:24:33,488 INFO L485 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2025-04-30 10:24:33,489 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-04-30 10:24:33,489 INFO L278 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2025-04-30 10:24:33,489 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-04-30 10:24:33,489 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:24:33,489 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:24:33,489 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:24:33,489 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-04-30 10:24:33,490 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:24:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash 889508680, now seen corresponding path program 1 times [2025-04-30 10:24:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:24:33,490 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599625557] [2025-04-30 10:24:33,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:33,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:24:33,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:24:33,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:24:33,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:33,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:24:33,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:24:33,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:24:33,538 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599625557] [2025-04-30 10:24:33,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599625557] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:24:33,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:24:33,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:24:33,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70690307] [2025-04-30 10:24:33,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:24:33,539 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:24:33,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:24:33,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:24:33,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:24:33,539 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2025-04-30 10:24:33,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:24:33,554 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2025-04-30 10:24:33,555 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:24:33,555 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2025-04-30 10:24:33,555 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:24:33,555 INFO L225 Difference]: With dead ends: 11 [2025-04-30 10:24:33,555 INFO L226 Difference]: Without dead ends: 7 [2025-04-30 10:24:33,555 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:24:33,556 INFO L437 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:24:33,556 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:24:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2025-04-30 10:24:33,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2025-04-30 10:24:33,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 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) [2025-04-30 10:24:33,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2025-04-30 10:24:33,557 INFO L79 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2025-04-30 10:24:33,557 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:24:33,557 INFO L485 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2025-04-30 10:24:33,558 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2025-04-30 10:24:33,558 INFO L278 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2025-04-30 10:24:33,558 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-04-30 10:24:33,558 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:24:33,558 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:24:33,558 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:24:33,558 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-04-30 10:24:33,559 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:24:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash 889568262, now seen corresponding path program 1 times [2025-04-30 10:24:33,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:24:33,559 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418518259] [2025-04-30 10:24:33,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:33,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:24:33,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:24:33,574 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:24:33,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:33,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:24:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:24:33,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:24:33,594 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418518259] [2025-04-30 10:24:33,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418518259] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:24:33,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:24:33,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:24:33,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828996014] [2025-04-30 10:24:33,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:24:33,594 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:24:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:24:33,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:24:33,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:24:33,595 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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) [2025-04-30 10:24:33,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:24:33,599 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2025-04-30 10:24:33,600 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:24:33,600 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 [2025-04-30 10:24:33,600 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:24:33,600 INFO L225 Difference]: With dead ends: 7 [2025-04-30 10:24:33,600 INFO L226 Difference]: Without dead ends: 0 [2025-04-30 10:24:33,601 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:24:33,602 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:24:33,602 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:24:33,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-30 10:24:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-30 10:24:33,604 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) [2025-04-30 10:24:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-30 10:24:33,605 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2025-04-30 10:24:33,605 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:24:33,605 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-30 10:24:33,605 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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) [2025-04-30 10:24:33,605 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-30 10:24:33,605 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-30 10:24:33,607 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-04-30 10:24:33,608 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-04-30 10:24:33,608 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:24:33,610 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-30 10:24:33,611 INFO L312 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-04-30 10:24:33,618 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:24:33,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:24:33 BoogieIcfgContainer [2025-04-30 10:24:33,628 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:24:33,632 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:24:33,632 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:24:33,632 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:24:33,633 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:24:33" (3/4) ... [2025-04-30 10:24:33,634 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:24:33,638 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-30 10:24:33,639 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:24:33,639 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:24:33,639 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:24:33,694 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:24:33,694 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:24:33,694 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:24:33,695 INFO L158 Benchmark]: Toolchain (without parser) took 1094.82ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 46.8MB in the end (delta: 65.8MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-04-30 10:24:33,695 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:24:33,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.52ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 93.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:24:33,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.77ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 91.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:24:33,696 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 90.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:24:33,696 INFO L158 Benchmark]: RCFGBuilder took 214.96ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 78.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:24:33,696 INFO L158 Benchmark]: TraceAbstraction took 468.02ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 52.1MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-30 10:24:33,696 INFO L158 Benchmark]: Witness Printer took 62.70ms. Allocated memory is still 142.6MB. Free memory was 52.1MB in the beginning and 46.8MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:24:33,697 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.52ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 93.1MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.77ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 91.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 142.6MB. Free memory was 91.4MB in the beginning and 90.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 214.96ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 78.9MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 468.02ms. Allocated memory is still 142.6MB. Free memory was 78.1MB in the beginning and 52.1MB in the end (delta: 25.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 62.70ms. Allocated memory is still 142.6MB. Free memory was 52.1MB in the beginning and 46.8MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. 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: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 18 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 19 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-30 10:24:33,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE