./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcpy-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/array-memsafety/openbsd_cstrcpy-alloca-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 4b6873ae1a0d665798beb3dd9c0c48e89806da7dd46f1d2066800a52e0a2aa51 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:18:11,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:18:11,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-04-30 10:18:11,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:18:11,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:18:11,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:18:11,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:18:11,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:18:11,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:18:11,989 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:18:11,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:18:11,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:18:11,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:18:11,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:18:11,990 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:18:11,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:18:11,991 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:18:11,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:18:11,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:18:11,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:18:11,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:18:11,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:18:11,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:18:11,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:18:11,994 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b6873ae1a0d665798beb3dd9c0c48e89806da7dd46f1d2066800a52e0a2aa51 [2025-04-30 10:18:12,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:18:12,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:18:12,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:18:12,197 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:18:12,197 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:18:12,198 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cstrcpy-alloca-2.i [2025-04-30 10:18:13,483 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f948792f6/1aa6e378b5c24526a146be2ab2ca443d/FLAG46be582d0 [2025-04-30 10:18:13,718 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:18:13,719 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-memsafety/openbsd_cstrcpy-alloca-2.i [2025-04-30 10:18:13,727 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f948792f6/1aa6e378b5c24526a146be2ab2ca443d/FLAG46be582d0 [2025-04-30 10:18:14,533 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f948792f6/1aa6e378b5c24526a146be2ab2ca443d [2025-04-30 10:18:14,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:18:14,536 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:18:14,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:18:14,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:18:14,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:18:14,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a81c9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14, skipping insertion in model container [2025-04-30 10:18:14,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,556 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:18:14,813 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:18:14,820 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:18:14,871 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:18:14,886 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:18:14,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14 WrapperNode [2025-04-30 10:18:14,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:18:14,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:18:14,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:18:14,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:18:14,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,917 INFO L138 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 72 [2025-04-30 10:18:14,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:18:14,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:18:14,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:18:14,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:18:14,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,933 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [3, 1]. 75 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]. [2025-04-30 10:18:14,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,934 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,936 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:18:14,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:18:14,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:18:14,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:18:14,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (1/1) ... [2025-04-30 10:18:14,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:18:14,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:18:14,969 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 10:18:14,971 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 10:18:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:18:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:18:14,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:18:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:18:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-30 10:18:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:18:14,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:18:14,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:18:15,053 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:18:15,055 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:18:15,147 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-04-30 10:18:15,147 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:18:15,153 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:18:15,153 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-04-30 10:18:15,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:18:15 BoogieIcfgContainer [2025-04-30 10:18:15,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:18:15,155 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:18:15,155 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:18:15,158 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:18:15,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:18:14" (1/3) ... [2025-04-30 10:18:15,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bac68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:18:15, skipping insertion in model container [2025-04-30 10:18:15,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:18:14" (2/3) ... [2025-04-30 10:18:15,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62bac68b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:18:15, skipping insertion in model container [2025-04-30 10:18:15,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:18:15" (3/3) ... [2025-04-30 10:18:15,160 INFO L128 eAbstractionObserver]: Analyzing ICFG openbsd_cstrcpy-alloca-2.i [2025-04-30 10:18:15,169 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:18:15,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG openbsd_cstrcpy-alloca-2.i that has 1 procedures, 28 locations, 34 edges, 1 initial locations, 2 loop locations, and 6 error locations. [2025-04-30 10:18:15,207 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:18:15,216 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;@100633f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:18:15,218 INFO L341 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-04-30 10:18:15,221 INFO L278 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.619047619047619) internal successors, (34), 27 states have internal predecessors, (34), 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 10:18:15,224 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-04-30 10:18:15,224 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,225 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,225 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,228 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,228 INFO L85 PathProgramCache]: Analyzing trace with hash 889510861, now seen corresponding path program 1 times [2025-04-30 10:18:15,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,234 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150207298] [2025-04-30 10:18:15,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-30 10:18:15,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-30 10:18:15,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:15,381 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 10:18:15,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:15,381 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150207298] [2025-04-30 10:18:15,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150207298] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:15,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:15,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:18:15,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045906115] [2025-04-30 10:18:15,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:15,387 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:18:15,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:15,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:18:15,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:15,398 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.619047619047619) internal successors, (34), 27 states have internal predecessors, (34), 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) [2025-04-30 10:18:15,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:15,430 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2025-04-30 10:18:15,432 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:18:15,432 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2025-04-30 10:18:15,433 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:15,437 INFO L225 Difference]: With dead ends: 40 [2025-04-30 10:18:15,437 INFO L226 Difference]: Without dead ends: 18 [2025-04-30 10:18:15,439 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:15,441 INFO L437 NwaCegarLoop]: 20 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:15,441 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:15,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-04-30 10:18:15,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-04-30 10:18:15,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 10:18:15,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-04-30 10:18:15,461 INFO L79 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 6 [2025-04-30 10:18:15,461 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:15,461 INFO L485 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-04-30 10:18:15,462 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:18:15,462 INFO L278 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-04-30 10:18:15,463 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-30 10:18:15,463 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,463 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,463 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:18:15,463 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,464 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1805032971, now seen corresponding path program 1 times [2025-04-30 10:18:15,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,464 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410384173] [2025-04-30 10:18:15,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-30 10:18:15,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-30 10:18:15,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:15,526 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 10:18:15,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:15,526 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410384173] [2025-04-30 10:18:15,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410384173] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:15,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:15,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:18:15,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503579450] [2025-04-30 10:18:15,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:15,527 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:18:15,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:15,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:18:15,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:15,528 INFO L87 Difference]: Start difference. First operand 18 states and 20 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) [2025-04-30 10:18:15,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:15,563 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2025-04-30 10:18:15,563 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:18:15,563 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 [2025-04-30 10:18:15,563 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:15,564 INFO L225 Difference]: With dead ends: 32 [2025-04-30 10:18:15,564 INFO L226 Difference]: Without dead ends: 27 [2025-04-30 10:18:15,564 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:15,564 INFO L437 NwaCegarLoop]: 14 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:15,565 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 23 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-04-30 10:18:15,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2025-04-30 10:18:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.380952380952381) internal successors, (29), 24 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) [2025-04-30 10:18:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2025-04-30 10:18:15,573 INFO L79 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 7 [2025-04-30 10:18:15,573 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:15,574 INFO L485 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2025-04-30 10:18:15,574 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) [2025-04-30 10:18:15,574 INFO L278 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2025-04-30 10:18:15,574 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-30 10:18:15,575 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,575 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,575 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:18:15,575 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,576 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1805092553, now seen corresponding path program 1 times [2025-04-30 10:18:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,576 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013449887] [2025-04-30 10:18:15,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,583 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-30 10:18:15,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-30 10:18:15,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:15,624 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 10:18:15,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:15,624 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013449887] [2025-04-30 10:18:15,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013449887] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:15,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:15,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:18:15,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376788266] [2025-04-30 10:18:15,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:15,625 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-30 10:18:15,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:15,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-30 10:18:15,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:15,626 INFO L87 Difference]: Start difference. First operand 25 states and 29 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) [2025-04-30 10:18:15,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:15,640 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2025-04-30 10:18:15,640 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-30 10:18:15,640 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 [2025-04-30 10:18:15,641 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:15,641 INFO L225 Difference]: With dead ends: 25 [2025-04-30 10:18:15,641 INFO L226 Difference]: Without dead ends: 20 [2025-04-30 10:18:15,642 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-30 10:18:15,643 INFO L437 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:15,644 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 11 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:15,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-04-30 10:18:15,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2025-04-30 10:18:15,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 10:18:15,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2025-04-30 10:18:15,648 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2025-04-30 10:18:15,648 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:15,649 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2025-04-30 10:18:15,649 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) [2025-04-30 10:18:15,649 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2025-04-30 10:18:15,650 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-30 10:18:15,650 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,650 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,650 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:18:15,650 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,651 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,651 INFO L85 PathProgramCache]: Analyzing trace with hash 746751858, now seen corresponding path program 1 times [2025-04-30 10:18:15,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,651 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448089464] [2025-04-30 10:18:15,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-30 10:18:15,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-30 10:18:15,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:15,741 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 10:18:15,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:15,742 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448089464] [2025-04-30 10:18:15,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448089464] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:15,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:15,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:18:15,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123368280] [2025-04-30 10:18:15,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:15,743 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:18:15,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:15,743 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:18:15,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:15,743 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10:18:15,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:15,756 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2025-04-30 10:18:15,757 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:18:15,757 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2025-04-30 10:18:15,757 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:15,757 INFO L225 Difference]: With dead ends: 25 [2025-04-30 10:18:15,757 INFO L226 Difference]: Without dead ends: 13 [2025-04-30 10:18:15,757 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:15,758 INFO L437 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:15,758 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-30 10:18:15,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-30 10:18:15,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) 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 10:18:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-30 10:18:15,761 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2025-04-30 10:18:15,761 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:15,761 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-30 10:18:15,761 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10:18:15,761 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-30 10:18:15,761 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-30 10:18:15,761 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,761 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,761 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:18:15,762 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,762 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1773208076, now seen corresponding path program 1 times [2025-04-30 10:18:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,762 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777641307] [2025-04-30 10:18:15,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-30 10:18:15,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-30 10:18:15,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:15,810 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 10:18:15,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:15,810 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777641307] [2025-04-30 10:18:15,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777641307] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:15,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:15,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:18:15,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378086022] [2025-04-30 10:18:15,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:15,811 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:18:15,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:15,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:18:15,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:15,812 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10:18:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:15,833 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2025-04-30 10:18:15,833 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:18:15,833 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2025-04-30 10:18:15,833 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:15,834 INFO L225 Difference]: With dead ends: 21 [2025-04-30 10:18:15,835 INFO L226 Difference]: Without dead ends: 19 [2025-04-30 10:18:15,835 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:15,836 INFO L437 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:15,836 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-04-30 10:18:15,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-04-30 10:18:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 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 10:18:15,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2025-04-30 10:18:15,838 INFO L79 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2025-04-30 10:18:15,838 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:15,838 INFO L485 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2025-04-30 10:18:15,838 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10:18:15,838 INFO L278 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2025-04-30 10:18:15,839 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-04-30 10:18:15,839 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,839 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,839 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-30 10:18:15,839 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,839 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1925859348, now seen corresponding path program 1 times [2025-04-30 10:18:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,839 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64516709] [2025-04-30 10:18:15,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-30 10:18:15,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-30 10:18:15,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:15,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-30 10:18:15,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:15,907 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64516709] [2025-04-30 10:18:15,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64516709] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:15,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:18:15,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:18:15,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627409077] [2025-04-30 10:18:15,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:15,908 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:18:15,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:15,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:18:15,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:15,908 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 10:18:15,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:15,929 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2025-04-30 10:18:15,930 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:18:15,930 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 16 [2025-04-30 10:18:15,930 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:15,931 INFO L225 Difference]: With dead ends: 35 [2025-04-30 10:18:15,931 INFO L226 Difference]: Without dead ends: 19 [2025-04-30 10:18:15,931 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:18:15,932 INFO L437 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:15,932 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:15,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-04-30 10:18:15,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-04-30 10:18:15,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 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 10:18:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2025-04-30 10:18:15,934 INFO L79 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 16 [2025-04-30 10:18:15,934 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:15,934 INFO L485 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2025-04-30 10:18:15,934 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 10:18:15,934 INFO L278 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2025-04-30 10:18:15,934 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-04-30 10:18:15,934 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:15,934 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:15,934 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:18:15,934 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:15,935 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1357990698, now seen corresponding path program 1 times [2025-04-30 10:18:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:15,935 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573290545] [2025-04-30 10:18:15,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:15,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-30 10:18:15,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-30 10:18:15,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:15,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:16,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:16,019 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573290545] [2025-04-30 10:18:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573290545] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:18:16,019 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485481902] [2025-04-30 10:18:16,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:16,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:18:16,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:18:16,021 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 10:18:16,023 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 10:18:16,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-30 10:18:16,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-30 10:18:16,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:16,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:16,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-30 10:18:16,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:18:16,119 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:16,120 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:18:16,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485481902] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:18:16,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:18:16,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-04-30 10:18:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824226502] [2025-04-30 10:18:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:18:16,121 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:18:16,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:16,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:18:16,122 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-30 10:18:16,122 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 10:18:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:16,150 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2025-04-30 10:18:16,150 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:18:16,151 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2025-04-30 10:18:16,151 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:16,151 INFO L225 Difference]: With dead ends: 19 [2025-04-30 10:18:16,151 INFO L226 Difference]: Without dead ends: 18 [2025-04-30 10:18:16,151 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-30 10:18:16,152 INFO L437 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:16,152 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 33 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:16,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-04-30 10:18:16,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-04-30 10:18:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:18:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2025-04-30 10:18:16,156 INFO L79 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2025-04-30 10:18:16,157 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:16,157 INFO L485 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2025-04-30 10:18:16,157 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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 10:18:16,157 INFO L278 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2025-04-30 10:18:16,157 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-04-30 10:18:16,157 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:16,157 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:16,163 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 10:18:16,358 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:18:16,358 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:16,358 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:16,359 INFO L85 PathProgramCache]: Analyzing trace with hash -851961255, now seen corresponding path program 1 times [2025-04-30 10:18:16,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:16,359 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244959654] [2025-04-30 10:18:16,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:16,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:16,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-30 10:18:16,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-30 10:18:16,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:16,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:16,415 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:16,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:16,416 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244959654] [2025-04-30 10:18:16,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244959654] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:18:16,416 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180049542] [2025-04-30 10:18:16,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:18:16,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:18:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:18:16,444 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 10:18:16,445 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 10:18:16,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-30 10:18:16,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-30 10:18:16,500 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:18:16,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:16,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-30 10:18:16,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:18:16,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:16,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:18:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:18:16,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180049542] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:18:16,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:18:16,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-30 10:18:16,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224584843] [2025-04-30 10:18:16,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:18:16,594 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-30 10:18:16,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:16,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-30 10:18:16,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:18:16,594 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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 10:18:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:16,633 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2025-04-30 10:18:16,634 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-30 10:18:16,634 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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 17 [2025-04-30 10:18:16,634 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:16,634 INFO L225 Difference]: With dead ends: 37 [2025-04-30 10:18:16,634 INFO L226 Difference]: Without dead ends: 36 [2025-04-30 10:18:16,634 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:18:16,635 INFO L437 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:16,635 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:16,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-04-30 10:18:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2025-04-30 10:18:16,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 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 10:18:16,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2025-04-30 10:18:16,638 INFO L79 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2025-04-30 10:18:16,638 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:16,638 INFO L485 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2025-04-30 10:18:16,638 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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 10:18:16,638 INFO L278 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2025-04-30 10:18:16,638 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-04-30 10:18:16,638 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:18:16,639 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:16,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-30 10:18:16,839 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,SelfDestructingSolverStorable7 [2025-04-30 10:18:16,839 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-04-30 10:18:16,839 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:18:16,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1267788017, now seen corresponding path program 2 times [2025-04-30 10:18:16,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:18:16,840 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24180922] [2025-04-30 10:18:16,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:18:16,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:18:16,850 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-04-30 10:18:16,855 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 35 statements. [2025-04-30 10:18:16,855 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:18:16,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-04-30 10:18:16,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:18:16,887 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24180922] [2025-04-30 10:18:16,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24180922] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:18:16,887 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553363406] [2025-04-30 10:18:16,887 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:18:16,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:18:16,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:18:16,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:18:16,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-30 10:18:16,935 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-04-30 10:18:16,942 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 35 statements. [2025-04-30 10:18:16,942 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-30 10:18:16,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:18:16,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:18:16,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:18:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-04-30 10:18:16,998 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:18:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-04-30 10:18:17,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553363406] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:18:17,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:18:17,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2025-04-30 10:18:17,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972302227] [2025-04-30 10:18:17,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:18:17,052 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-30 10:18:17,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:18:17,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-30 10:18:17,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:18:17,052 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 10:18:17,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:18:17,098 INFO L93 Difference]: Finished difference Result 36 states and 36 transitions. [2025-04-30 10:18:17,099 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:18:17,099 INFO L79 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 35 [2025-04-30 10:18:17,099 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:18:17,099 INFO L225 Difference]: With dead ends: 36 [2025-04-30 10:18:17,099 INFO L226 Difference]: Without dead ends: 0 [2025-04-30 10:18:17,099 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-04-30 10:18:17,100 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:18:17,100 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:18:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-30 10:18:17,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-30 10:18:17,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:18:17,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-30 10:18:17,100 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2025-04-30 10:18:17,100 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:18:17,100 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-30 10:18:17,100 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 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 10:18:17,100 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-30 10:18:17,100 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-30 10:18:17,103 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-04-30 10:18:17,103 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-04-30 10:18:17,103 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-04-30 10:18:17,103 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-04-30 10:18:17,103 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-04-30 10:18:17,103 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-04-30 10:18:17,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-30 10:18:17,308 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:18:17,327 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:18:17,330 INFO L312 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-04-30 10:18:17,378 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:18:17,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:18:17 BoogieIcfgContainer [2025-04-30 10:18:17,388 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:18:17,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:18:17,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:18:17,389 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:18:17,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:18:15" (3/4) ... [2025-04-30 10:18:17,391 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:18:17,397 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-04-30 10:18:17,398 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-30 10:18:17,398 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-04-30 10:18:17,398 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:18:17,453 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:18:17,455 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:18:17,456 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:18:17,456 INFO L158 Benchmark]: Toolchain (without parser) took 2920.56ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 118.6MB in the end (delta: 9.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2025-04-30 10:18:17,456 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:18:17,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.66ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 109.1MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:18:17,457 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.66ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 106.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:18:17,457 INFO L158 Benchmark]: Boogie Preprocessor took 23.84ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 104.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:18:17,457 INFO L158 Benchmark]: RCFGBuilder took 211.01ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 92.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:18:17,457 INFO L158 Benchmark]: TraceAbstraction took 2233.31ms. Allocated memory is still 167.8MB. Free memory was 91.3MB in the beginning and 125.0MB in the end (delta: -33.8MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2025-04-30 10:18:17,457 INFO L158 Benchmark]: Witness Printer took 67.11ms. Allocated memory is still 167.8MB. Free memory was 125.0MB in the beginning and 118.6MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:18:17,458 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 114.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.66ms. Allocated memory is still 167.8MB. Free memory was 128.2MB in the beginning and 109.1MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.66ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 106.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.84ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 104.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 211.01ms. Allocated memory is still 167.8MB. Free memory was 104.6MB in the beginning and 92.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2233.31ms. Allocated memory is still 167.8MB. Free memory was 91.3MB in the beginning and 125.0MB in the end (delta: -33.8MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Witness Printer took 67.11ms. Allocated memory is still 167.8MB. Free memory was 125.0MB in the beginning and 118.6MB in the end (delta: 6.4MB). 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: 534]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 534]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 534]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 534]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 538]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 538]: 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, 28 locations, 34 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 96 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=8, InterpolantAutomatonStates: 43, 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, 9 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 192 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 616 SizeOfPredicates, 2 NumberOfNonLiveVariables, 200 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 154/213 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 6 specifications checked. All of them hold - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: (((((1 <= i) && (i <= 2147483646)) && (1 <= length2)) && (length2 <= 2147483647)) || (((i == 0) && (1 <= length2)) && (length2 <= 2147483647))) RESULT: Ultimate proved your program to be correct! [2025-04-30 10:18:17,471 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