./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/termination-memory-alloca/ex3b-alloca.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/ex3b-alloca.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 f23478267c7db041e0d430f7852fa8cba288847df5f5dded3d7c2138de17e1ef --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:24:16,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:24:16,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-04-30 10:24:16,088 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:24:16,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:24:16,134 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:24:16,135 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:24:16,135 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:24:16,136 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:24:16,136 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:24:16,137 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:24:16,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:24:16,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:24:16,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:24:16,138 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:24:16,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:24:16,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:24:16,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:24:16,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:24:16,140 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:24:16,140 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:24:16,140 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:24:16,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:24:16,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:24:16,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:24:16,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:24:16,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:24:16,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:24:16,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:24:16,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:24:16,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:24:16,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:24:16,142 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:24:16,142 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 -> f23478267c7db041e0d430f7852fa8cba288847df5f5dded3d7c2138de17e1ef [2025-04-30 10:24:16,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:24:16,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:24:16,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:24:16,493 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:24:16,493 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:24:16,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/termination-memory-alloca/ex3b-alloca.i [2025-04-30 10:24:17,828 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1485561/9cab2042de85482b968bbda88639c4ac/FLAGe5e1c04cc [2025-04-30 10:24:18,069 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:24:18,070 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/termination-memory-alloca/ex3b-alloca.i [2025-04-30 10:24:18,081 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1485561/9cab2042de85482b968bbda88639c4ac/FLAGe5e1c04cc [2025-04-30 10:24:18,829 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f1485561/9cab2042de85482b968bbda88639c4ac [2025-04-30 10:24:18,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:24:18,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:24:18,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:24:18,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:24:18,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:24:18,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:24:18" (1/1) ... [2025-04-30 10:24:18,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff70a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:18, skipping insertion in model container [2025-04-30 10:24:18,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:24:18" (1/1) ... [2025-04-30 10:24:18,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:24:19,113 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:24:19,119 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:24:19,177 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:24:19,195 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:24:19,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19 WrapperNode [2025-04-30 10:24:19,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:24:19,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:24:19,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:24:19,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:24:19,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,225 INFO L138 Inliner]: procedures = 111, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-04-30 10:24:19,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:24:19,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:24:19,225 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:24:19,225 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:24:19,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,248 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [6, 2, 4]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 5 writes are split as follows [2, 1, 2]. [2025-04-30 10:24:19,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,251 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:24:19,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:24:19,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:24:19,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:24:19,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (1/1) ... [2025-04-30 10:24:19,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:24:19,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:24:19,285 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 10:24:19,287 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 10:24:19,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:24:19,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:24:19,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:24:19,378 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:24:19,380 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:24:19,452 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-04-30 10:24:19,452 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:24:19,457 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:24:19,457 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:24:19,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:24:19 BoogieIcfgContainer [2025-04-30 10:24:19,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:24:19,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:24:19,459 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:24:19,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:24:19,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:24:18" (1/3) ... [2025-04-30 10:24:19,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3103c20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:24:19, skipping insertion in model container [2025-04-30 10:24:19,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:24:19" (2/3) ... [2025-04-30 10:24:19,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3103c20d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:24:19, skipping insertion in model container [2025-04-30 10:24:19,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:24:19" (3/3) ... [2025-04-30 10:24:19,463 INFO L128 eAbstractionObserver]: Analyzing ICFG ex3b-alloca.i [2025-04-30 10:24:19,471 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:24:19,472 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ex3b-alloca.i that has 1 procedures, 19 locations, 21 edges, 1 initial locations, 1 loop locations, and 4 error locations. [2025-04-30 10:24:19,508 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:24:19,515 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;@44ada608, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:24:19,517 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-30 10:24:19,520 INFO L278 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 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 10:24:19,523 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-30 10:24:19,523 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:24:19,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:24:19,524 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:24:19,527 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:24:19,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1805892906, now seen corresponding path program 1 times [2025-04-30 10:24:19,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:24:19,533 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703791787] [2025-04-30 10:24:19,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:19,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:24:19,601 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-30 10:24:19,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-30 10:24:19,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:19,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-04-30 10:24:19,636 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1906009646] [2025-04-30 10:24:19,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:19,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:24:19,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:24:19,639 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:24:19,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-30 10:24:19,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-30 10:24:19,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-30 10:24:19,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:19,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:24:19,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-04-30 10:24:19,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:24:19,814 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2025-04-30 10:24:19,827 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 10:24:19,827 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:24:19,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:24:19,827 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703791787] [2025-04-30 10:24:19,828 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-30 10:24:19,828 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906009646] [2025-04-30 10:24:19,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906009646] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:24:19,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:24:19,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:24:19,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444057944] [2025-04-30 10:24:19,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:24:19,833 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:24:19,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:24:19,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:24:19,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:24:19,845 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.5) internal successors, (21), 18 states have internal predecessors, (21), 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 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 10:24:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:24:19,899 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2025-04-30 10:24:19,899 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:24:19,902 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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) Word has length 7 [2025-04-30 10:24:19,903 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:24:19,906 INFO L225 Difference]: With dead ends: 29 [2025-04-30 10:24:19,907 INFO L226 Difference]: Without dead ends: 16 [2025-04-30 10:24:19,908 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-30 10:24:19,910 INFO L437 NwaCegarLoop]: 14 mSDtfsCounter, 13 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:24:19,910 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 34 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:24:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-04-30 10:24:19,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2025-04-30 10:24:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:24:19,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-30 10:24:19,935 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2025-04-30 10:24:19,935 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:24:19,935 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-30 10:24:19,935 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 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 10:24:19,936 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-30 10:24:19,936 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-30 10:24:19,936 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:24:19,936 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:24:19,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-30 10:24:20,141 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-04-30 10:24:20,142 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:24:20,143 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:24:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash 148105291, now seen corresponding path program 1 times [2025-04-30 10:24:20,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:24:20,143 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872726696] [2025-04-30 10:24:20,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:20,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:24:20,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:24:20,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:24:20,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:20,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-04-30 10:24:20,172 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116298680] [2025-04-30 10:24:20,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:24:20,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:24:20,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:24:20,176 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:24:20,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-30 10:24:20,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:24:20,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:24:20,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:20,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:24:20,348 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-30 10:24:20,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-30 10:24:20,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-30 10:24:20,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:24:20,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-30 10:24:20,372 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-30 10:24:20,373 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-30 10:24:20,376 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-04-30 10:24:20,377 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-04-30 10:24:20,377 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-04-30 10:24:20,377 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-04-30 10:24:20,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-30 10:24:20,577 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-30 10:24:20,580 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-04-30 10:24:20,604 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:24:20,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:24:20 BoogieIcfgContainer [2025-04-30 10:24:20,607 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:24:20,608 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:24:20,608 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:24:20,609 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:24:20,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:24:19" (3/4) ... [2025-04-30 10:24:20,610 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-30 10:24:20,639 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 3. [2025-04-30 10:24:20,677 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:24:20,677 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:24:20,678 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:24:20,678 INFO L158 Benchmark]: Toolchain (without parser) took 1846.06ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 91.4MB in the end (delta: 17.7MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2025-04-30 10:24:20,678 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 192.9MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:24:20,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 363.40ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 89.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:24:20,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.12ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 87.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:24:20,679 INFO L158 Benchmark]: Boogie Preprocessor took 35.85ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 86.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:24:20,679 INFO L158 Benchmark]: RCFGBuilder took 195.69ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 74.1MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:24:20,679 INFO L158 Benchmark]: TraceAbstraction took 1148.70ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 97.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:24:20,679 INFO L158 Benchmark]: Witness Printer took 69.76ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 91.4MB in the end (delta: 6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:24:20,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 192.9MB. Free memory is still 118.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 363.40ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 89.9MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.12ms. Allocated memory is still 142.6MB. Free memory was 89.9MB in the beginning and 87.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.85ms. Allocated memory is still 142.6MB. Free memory was 87.8MB in the beginning and 86.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 195.69ms. Allocated memory is still 142.6MB. Free memory was 86.2MB in the beginning and 74.1MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1148.70ms. Allocated memory is still 142.6MB. Free memory was 73.4MB in the beginning and 97.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.76ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 91.4MB in the end (delta: 6.3MB). 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: 556]: integer overflow possible integer overflow possible We found a FailurePath: [L562] CALL test_fun(__VERIFIER_nondet_int(),__VERIFIER_nondet_int()) [L549] int* x_ref = __builtin_alloca (sizeof(int)); [L550] int* y_ref = __builtin_alloca (sizeof(int)); [L551] int* c = __builtin_alloca (sizeof(int)); [L552] *x_ref = x [L553] *y_ref = y [L554] *c = 0 [L555] EXPR \read(*x_ref) [L555] (*x_ref > 1) && (*x_ref < *y_ref) VAL [c={3:0}, x_ref={4:0}, y_ref={5:0}] [L555] (*x_ref > 1) && (*x_ref < *y_ref) [L555] EXPR \read(*x_ref) [L555] EXPR \read(*y_ref) [L555] (*x_ref > 1) && (*x_ref < *y_ref) VAL [c={3:0}, x_ref={4:0}, y_ref={5:0}] [L555] COND TRUE (*x_ref > 1) && (*x_ref < *y_ref) [L556] EXPR \read(*x_ref) [L556] EXPR \read(*x_ref) [L556] (*x_ref) * (*x_ref) VAL [c={3:0}, x_ref={4:0}, y_ref={5:0}] - UnprovableResult [Line: 556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 557]: 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 1 procedures, 19 locations, 21 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 3 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 6 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-30 10:24:20,692 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)