./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/termination-memory-alloca/openbsd_cstpncpy-alloca-2.c --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_cstpncpy-alloca-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7b76662592910692d2490755f164af55585b3dcee5639fe741370705502efcb5 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-29 11:06:13,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-29 11:06:13,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-04-29 11:06:13,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-29 11:06:13,791 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-29 11:06:13,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-29 11:06:13,809 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-29 11:06:13,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-29 11:06:13,810 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-29 11:06:13,810 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-29 11:06:13,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-29 11:06:13,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-29 11:06:13,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-29 11:06:13,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-29 11:06:13,810 INFO L153 SettingsManager]: * Use SBE=true [2025-04-29 11:06:13,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-29 11:06:13,811 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-29 11:06:13,811 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:06:13,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:06:13,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-29 11:06:13,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-29 11:06:13,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-29 11:06:13,813 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 -> 7b76662592910692d2490755f164af55585b3dcee5639fe741370705502efcb5 [2025-04-29 11:06:14,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-29 11:06:14,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-29 11:06:14,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-29 11:06:14,064 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-29 11:06:14,065 INFO L274 PluginConnector]: CDTParser initialized [2025-04-29 11:06:14,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/termination-memory-alloca/openbsd_cstpncpy-alloca-2.c [2025-04-29 11:06:15,337 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ed681e5/4c755693d8e446d7b7570427e6509df8/FLAGbd1619620 [2025-04-29 11:06:15,516 INFO L389 CDTParser]: Found 1 translation units. [2025-04-29 11:06:15,517 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/termination-memory-alloca/openbsd_cstpncpy-alloca-2.c [2025-04-29 11:06:15,519 WARN L117 ultiparseSymbolTable]: System include stdlib.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:06:15,519 WARN L117 ultiparseSymbolTable]: System include alloca.h could not be resolved by CDT -- only built-in system includes are available. [2025-04-29 11:06:15,530 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ed681e5/4c755693d8e446d7b7570427e6509df8/FLAGbd1619620 [2025-04-29 11:06:16,338 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7ed681e5/4c755693d8e446d7b7570427e6509df8 [2025-04-29 11:06:16,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-29 11:06:16,341 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-29 11:06:16,342 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-29 11:06:16,342 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-29 11:06:16,345 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-29 11:06:16,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c0dc6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16, skipping insertion in model container [2025-04-29 11:06:16,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-29 11:06:16,542 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:06:16,552 INFO L200 MainTranslator]: Completed pre-run [2025-04-29 11:06:16,581 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-29 11:06:16,592 INFO L204 MainTranslator]: Completed translation [2025-04-29 11:06:16,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16 WrapperNode [2025-04-29 11:06:16,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-29 11:06:16,594 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-29 11:06:16,594 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-29 11:06:16,594 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-29 11:06:16,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,606 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,620 INFO L138 Inliner]: procedures = 9, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2025-04-29 11:06:16,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-29 11:06:16,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-29 11:06:16,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-29 11:06:16,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-29 11:06:16,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,644 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0]. The 3 writes are split as follows [2, 1]. [2025-04-29 11:06:16,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,656 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,665 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,666 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-29 11:06:16,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-29 11:06:16,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-29 11:06:16,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-29 11:06:16,675 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (1/1) ... [2025-04-29 11:06:16,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-29 11:06:16,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-29 11:06:16,702 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) [2025-04-29 11:06:16,707 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 [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-29 11:06:16,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-29 11:06:16,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-29 11:06:16,780 INFO L234 CfgBuilder]: Building ICFG [2025-04-29 11:06:16,782 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-29 11:06:16,944 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-04-29 11:06:16,944 INFO L283 CfgBuilder]: Performing block encoding [2025-04-29 11:06:16,951 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-29 11:06:16,951 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-29 11:06:16,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:06:16 BoogieIcfgContainer [2025-04-29 11:06:16,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-29 11:06:16,953 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-29 11:06:16,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-29 11:06:16,956 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-29 11:06:16,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 11:06:16" (1/3) ... [2025-04-29 11:06:16,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e31d7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:06:16, skipping insertion in model container [2025-04-29 11:06:16,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 11:06:16" (2/3) ... [2025-04-29 11:06:16,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e31d7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 11:06:16, skipping insertion in model container [2025-04-29 11:06:16,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:06:16" (3/3) ... [2025-04-29 11:06:16,959 INFO L128 eAbstractionObserver]: Analyzing ICFG openbsd_cstpncpy-alloca-2.c [2025-04-29 11:06:16,970 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-29 11:06:16,971 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG openbsd_cstpncpy-alloca-2.c that has 1 procedures, 22 locations, 29 edges, 1 initial locations, 2 loop locations, and 2 error locations. [2025-04-29 11:06:17,009 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-29 11:06:17,016 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;@3cf56df2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-29 11:06:17,017 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-29 11:06:17,019 INFO L278 IsEmpty]: Start isEmpty. Operand has 22 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:06:17,023 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-04-29 11:06:17,023 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:06:17,023 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-29 11:06:17,023 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-04-29 11:06:17,027 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:06:17,028 INFO L85 PathProgramCache]: Analyzing trace with hash 889510730, now seen corresponding path program 1 times [2025-04-29 11:06:17,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:06:17,033 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577840702] [2025-04-29 11:06:17,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:06:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:06:17,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-29 11:06:17,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-29 11:06:17,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:06:17,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:06:17,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:06:17,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:06:17,168 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577840702] [2025-04-29 11:06:17,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577840702] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:06:17,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:06:17,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:06:17,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181883507] [2025-04-29 11:06:17,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:06:17,172 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:06:17,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:06:17,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:06:17,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:06:17,187 INFO L87 Difference]: Start difference. First operand has 22 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2025-04-29 11:06:17,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:06:17,212 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2025-04-29 11:06:17,213 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:06:17,216 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 [2025-04-29 11:06:17,216 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:06:17,220 INFO L225 Difference]: With dead ends: 28 [2025-04-29 11:06:17,220 INFO L226 Difference]: Without dead ends: 8 [2025-04-29 11:06:17,221 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 [2025-04-29 11:06:17,224 INFO L437 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 38 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 [2025-04-29 11:06:17,225 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 38 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:06:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-04-29 11:06:17,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-04-29 11:06:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-29 11:06:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2025-04-29 11:06:17,248 INFO L79 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2025-04-29 11:06:17,248 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:06:17,248 INFO L485 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2025-04-29 11:06:17,248 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) [2025-04-29 11:06:17,248 INFO L278 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2025-04-29 11:06:17,249 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-29 11:06:17,249 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:06:17,249 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:06:17,249 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-29 11:06:17,249 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-04-29 11:06:17,249 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:06:17,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028903, now seen corresponding path program 1 times [2025-04-29 11:06:17,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:06:17,250 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503775717] [2025-04-29 11:06:17,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:06:17,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:06:17,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-29 11:06:17,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-29 11:06:17,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:06:17,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:06:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:06:17,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:06:17,301 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503775717] [2025-04-29 11:06:17,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503775717] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:06:17,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:06:17,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:06:17,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325257296] [2025-04-29 11:06:17,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:06:17,302 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:06:17,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:06:17,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:06:17,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:06:17,303 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2025-04-29 11:06:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:06:17,315 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2025-04-29 11:06:17,315 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:06:17,315 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2025-04-29 11:06:17,315 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:06:17,316 INFO L225 Difference]: With dead ends: 13 [2025-04-29 11:06:17,316 INFO L226 Difference]: Without dead ends: 8 [2025-04-29 11:06:17,316 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 [2025-04-29 11:06:17,316 INFO L437 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 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 [2025-04-29 11:06:17,316 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:06:17,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2025-04-29 11:06:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2025-04-29 11:06:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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) [2025-04-29 11:06:17,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2025-04-29 11:06:17,318 INFO L79 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2025-04-29 11:06:17,318 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:06:17,318 INFO L485 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2025-04-29 11:06:17,318 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2025-04-29 11:06:17,318 INFO L278 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2025-04-29 11:06:17,318 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-29 11:06:17,318 INFO L210 NwaCegarLoop]: Found error trace [2025-04-29 11:06:17,318 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-29 11:06:17,318 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-29 11:06:17,318 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-04-29 11:06:17,319 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-29 11:06:17,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1806875945, now seen corresponding path program 1 times [2025-04-29 11:06:17,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-29 11:06:17,319 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862734220] [2025-04-29 11:06:17,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-29 11:06:17,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-29 11:06:17,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-29 11:06:17,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-29 11:06:17,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-29 11:06:17,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-29 11:06:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-29 11:06:17,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-29 11:06:17,366 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862734220] [2025-04-29 11:06:17,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862734220] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-29 11:06:17,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-29 11:06:17,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-29 11:06:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801870507] [2025-04-29 11:06:17,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-29 11:06:17,367 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-29 11:06:17,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-29 11:06:17,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-29 11:06:17,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-29 11:06:17,368 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2025-04-29 11:06:17,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-29 11:06:17,375 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2025-04-29 11:06:17,376 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-29 11:06:17,376 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2025-04-29 11:06:17,376 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-29 11:06:17,376 INFO L225 Difference]: With dead ends: 8 [2025-04-29 11:06:17,376 INFO L226 Difference]: Without dead ends: 0 [2025-04-29 11:06:17,377 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 [2025-04-29 11:06:17,377 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5 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 [2025-04-29 11:06:17,378 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-29 11:06:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-29 11:06:17,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-29 11:06:17,380 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) [2025-04-29 11:06:17,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-29 11:06:17,381 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2025-04-29 11:06:17,381 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-29 11:06:17,381 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-29 11:06:17,381 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2025-04-29 11:06:17,381 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-29 11:06:17,381 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-29 11:06:17,384 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-04-29 11:06:17,384 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-04-29 11:06:17,384 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-29 11:06:17,386 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-04-29 11:06:17,388 INFO L312 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-04-29 11:06:17,397 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-29 11:06:17,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 11:06:17 BoogieIcfgContainer [2025-04-29 11:06:17,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-29 11:06:17,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-29 11:06:17,411 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-29 11:06:17,411 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-29 11:06:17,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 11:06:16" (3/4) ... [2025-04-29 11:06:17,413 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-29 11:06:17,418 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-04-29 11:06:17,419 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-29 11:06:17,419 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-29 11:06:17,419 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-29 11:06:17,470 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-29 11:06:17,471 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-29 11:06:17,471 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-29 11:06:17,472 INFO L158 Benchmark]: Toolchain (without parser) took 1130.27ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 43.1MB in the end (delta: 65.7MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-04-29 11:06:17,472 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 201.3MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:06:17,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.52ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 94.4MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:06:17,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.69ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:06:17,474 INFO L158 Benchmark]: Boogie Preprocessor took 50.92ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 91.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-29 11:06:17,474 INFO L158 Benchmark]: RCFGBuilder took 278.08ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 78.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:06:17,475 INFO L158 Benchmark]: TraceAbstraction took 455.24ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 48.8MB in the end (delta: 28.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-29 11:06:17,475 INFO L158 Benchmark]: Witness Printer took 60.25ms. Allocated memory is still 142.6MB. Free memory was 48.8MB in the beginning and 43.1MB in the end (delta: 5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-29 11:06:17,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 201.3MB. Free memory is still 130.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.52ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 94.4MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.69ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 93.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.92ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 91.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.08ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 78.1MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 455.24ms. Allocated memory is still 142.6MB. Free memory was 77.7MB in the beginning and 48.8MB in the end (delta: 28.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 60.25ms. Allocated memory is still 142.6MB. Free memory was 48.8MB in the beginning and 43.1MB in the end (delta: 5.7MB). 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: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: 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, 22 locations, 29 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 33 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=22occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 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! [2025-04-29 11:06:17,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE