./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/list-ext-properties/simple-ext.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/list-ext-properties/simple-ext.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 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 --- Real Ultimate output --- This is Ultimate 0.3.0-wip.fs.system-includes-da04345-m [2025-04-30 10:19:23,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-30 10:19:23,884 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-04-30 10:19:23,891 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-30 10:19:23,891 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-30 10:19:23,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-30 10:19:23,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-30 10:19:23,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-30 10:19:23,914 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-30 10:19:23,914 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-30 10:19:23,915 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-30 10:19:23,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-30 10:19:23,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * Use SBE=true [2025-04-30 10:19:23,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-30 10:19:23,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-30 10:19:23,917 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:19:23,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:19:23,918 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-30 10:19:23,918 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-30 10:19:23,918 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-30 10:19:23,918 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-30 10:19:23,918 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:19:23,918 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-30 10:19:23,918 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-30 10:19:23,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-30 10:19:23,919 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 -> 79d8454f49f42d774b494771accf13f0b47382db45ac5cfdb4c7afee633f8cd7 [2025-04-30 10:19:24,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-30 10:19:24,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-30 10:19:24,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-30 10:19:24,138 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-30 10:19:24,138 INFO L274 PluginConnector]: CDTParser initialized [2025-04-30 10:19:24,139 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/simple-ext.i [2025-04-30 10:19:25,433 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e121c60d/5076a11668ec4496af0c3bb959c36e7a/FLAGaada51519 [2025-04-30 10:19:25,681 INFO L389 CDTParser]: Found 1 translation units. [2025-04-30 10:19:25,683 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/list-ext-properties/simple-ext.i [2025-04-30 10:19:25,691 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e121c60d/5076a11668ec4496af0c3bb959c36e7a/FLAGaada51519 [2025-04-30 10:19:26,482 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e121c60d/5076a11668ec4496af0c3bb959c36e7a [2025-04-30 10:19:26,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-30 10:19:26,485 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-30 10:19:26,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-30 10:19:26,486 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-30 10:19:26,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-30 10:19:26,490 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b114290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26, skipping insertion in model container [2025-04-30 10:19:26,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-30 10:19:26,772 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:19:26,779 INFO L200 MainTranslator]: Completed pre-run [2025-04-30 10:19:26,831 INFO L211 PostProcessor]: Analyzing one entry point: main [2025-04-30 10:19:26,855 INFO L204 MainTranslator]: Completed translation [2025-04-30 10:19:26,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26 WrapperNode [2025-04-30 10:19:26,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-30 10:19:26,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-30 10:19:26,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-30 10:19:26,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-30 10:19:26,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,887 INFO L138 Inliner]: procedures = 124, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2025-04-30 10:19:26,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-30 10:19:26,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-30 10:19:26,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-30 10:19:26,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-30 10:19:26,894 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,897 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,906 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2025-04-30 10:19:26,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,914 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,919 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-30 10:19:26,925 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-30 10:19:26,925 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-30 10:19:26,925 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-30 10:19:26,926 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (1/1) ... [2025-04-30 10:19:26,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-30 10:19:26,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:26,955 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 10:19:26,957 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 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2025-04-30 10:19:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-30 10:19:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-30 10:19:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-30 10:19:27,065 INFO L234 CfgBuilder]: Building ICFG [2025-04-30 10:19:27,066 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-30 10:19:27,084 INFO L726 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2025-04-30 10:19:27,214 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-04-30 10:19:27,216 INFO L283 CfgBuilder]: Performing block encoding [2025-04-30 10:19:27,223 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-30 10:19:27,223 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-04-30 10:19:27,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:19:27 BoogieIcfgContainer [2025-04-30 10:19:27,224 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-30 10:19:27,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-30 10:19:27,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-30 10:19:27,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-30 10:19:27,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.04 10:19:26" (1/3) ... [2025-04-30 10:19:27,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c207b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:19:27, skipping insertion in model container [2025-04-30 10:19:27,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.04 10:19:26" (2/3) ... [2025-04-30 10:19:27,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c207b6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.04 10:19:27, skipping insertion in model container [2025-04-30 10:19:27,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:19:27" (3/3) ... [2025-04-30 10:19:27,231 INFO L128 eAbstractionObserver]: Analyzing ICFG simple-ext.i [2025-04-30 10:19:27,241 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-30 10:19:27,242 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG simple-ext.i that has 2 procedures, 34 locations, 45 edges, 1 initial locations, 3 loop locations, and 4 error locations. [2025-04-30 10:19:27,278 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-30 10:19:27,288 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;@d560167, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-30 10:19:27,289 INFO L341 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-04-30 10:19:27,292 INFO L278 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.5) internal successors, (39), 31 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-30 10:19:27,296 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-30 10:19:27,297 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:27,297 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:27,297 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:27,301 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:27,302 INFO L85 PathProgramCache]: Analyzing trace with hash 425437654, now seen corresponding path program 1 times [2025-04-30 10:19:27,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:27,307 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790998679] [2025-04-30 10:19:27,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:27,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:27,378 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-30 10:19:27,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-30 10:19:27,387 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:27,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:27,426 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 10:19:27,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:27,428 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790998679] [2025-04-30 10:19:27,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790998679] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:27,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:19:27,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-30 10:19:27,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039310301] [2025-04-30 10:19:27,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:27,433 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-30 10:19:27,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:27,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-30 10:19:27,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:19:27,449 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.5) internal successors, (39), 31 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 10:19:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:27,465 INFO L93 Difference]: Finished difference Result 47 states and 58 transitions. [2025-04-30 10:19:27,466 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-30 10:19:27,468 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 10:19:27,468 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:27,472 INFO L225 Difference]: With dead ends: 47 [2025-04-30 10:19:27,472 INFO L226 Difference]: Without dead ends: 22 [2025-04-30 10:19:27,475 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-30 10:19:27,478 INFO L437 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:27,480 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2025-04-30 10:19:27,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2025-04-30 10:19:27,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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 10:19:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2025-04-30 10:19:27,504 INFO L79 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 10 [2025-04-30 10:19:27,504 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:27,504 INFO L485 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2025-04-30 10:19:27,505 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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 10:19:27,505 INFO L278 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2025-04-30 10:19:27,506 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-04-30 10:19:27,506 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:27,506 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:27,506 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-30 10:19:27,507 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:27,507 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1343304763, now seen corresponding path program 1 times [2025-04-30 10:19:27,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:27,508 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635164030] [2025-04-30 10:19:27,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:27,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:27,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-30 10:19:27,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-30 10:19:27,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:27,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:27,645 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 10:19:27,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:27,645 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635164030] [2025-04-30 10:19:27,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635164030] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:27,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:19:27,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:19:27,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549737065] [2025-04-30 10:19:27,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:27,646 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:19:27,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:27,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:19:27,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:19:27,647 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 10:19:27,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:27,692 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2025-04-30 10:19:27,693 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:19:27,693 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2025-04-30 10:19:27,693 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:27,693 INFO L225 Difference]: With dead ends: 36 [2025-04-30 10:19:27,693 INFO L226 Difference]: Without dead ends: 34 [2025-04-30 10:19:27,693 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 10:19:27,695 INFO L437 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:27,695 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 45 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:27,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-04-30 10:19:27,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2025-04-30 10:19:27,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 29 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 10:19:27,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2025-04-30 10:19:27,700 INFO L79 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 11 [2025-04-30 10:19:27,700 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:27,700 INFO L485 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2025-04-30 10:19:27,700 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 10:19:27,700 INFO L278 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2025-04-30 10:19:27,700 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-30 10:19:27,700 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:27,700 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:27,701 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-30 10:19:27,701 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:27,701 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:27,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1234747703, now seen corresponding path program 1 times [2025-04-30 10:19:27,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:27,701 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796693601] [2025-04-30 10:19:27,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:27,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:27,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-30 10:19:27,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-30 10:19:27,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:27,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:27,797 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 10:19:27,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:27,798 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796693601] [2025-04-30 10:19:27,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796693601] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:27,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:19:27,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-30 10:19:27,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429822884] [2025-04-30 10:19:27,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:27,799 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-30 10:19:27,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:27,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-30 10:19:27,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-30 10:19:27,799 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 10:19:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:27,830 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2025-04-30 10:19:27,831 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:19:27,831 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2025-04-30 10:19:27,831 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:27,831 INFO L225 Difference]: With dead ends: 38 [2025-04-30 10:19:27,831 INFO L226 Difference]: Without dead ends: 36 [2025-04-30 10:19:27,832 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 10:19:27,832 INFO L437 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:27,833 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 45 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:27,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2025-04-30 10:19:27,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2025-04-30 10:19:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 34 states have internal predecessors, (39), 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 10:19:27,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2025-04-30 10:19:27,835 INFO L79 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 12 [2025-04-30 10:19:27,835 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:27,836 INFO L485 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2025-04-30 10:19:27,836 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 10:19:27,836 INFO L278 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2025-04-30 10:19:27,836 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2025-04-30 10:19:27,836 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:27,836 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:27,836 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-30 10:19:27,836 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:27,837 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:27,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1529982797, now seen corresponding path program 1 times [2025-04-30 10:19:27,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:27,837 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354450360] [2025-04-30 10:19:27,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:27,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:27,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-04-30 10:19:27,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-04-30 10:19:27,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:27,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:28,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-30 10:19:28,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:28,018 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354450360] [2025-04-30 10:19:28,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354450360] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:28,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:19:28,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-30 10:19:28,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876812785] [2025-04-30 10:19:28,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:28,019 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:19:28,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:28,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:19:28,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:19:28,019 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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 10:19:28,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:28,091 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2025-04-30 10:19:28,091 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:19:28,092 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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 17 [2025-04-30 10:19:28,092 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:28,092 INFO L225 Difference]: With dead ends: 48 [2025-04-30 10:19:28,092 INFO L226 Difference]: Without dead ends: 35 [2025-04-30 10:19:28,092 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-04-30 10:19:28,093 INFO L437 NwaCegarLoop]: 18 mSDtfsCounter, 9 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:28,093 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 63 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:28,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-04-30 10:19:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-04-30 10:19:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 34 states have internal predecessors, (38), 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 10:19:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2025-04-30 10:19:28,096 INFO L79 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 17 [2025-04-30 10:19:28,096 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:28,096 INFO L485 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2025-04-30 10:19:28,096 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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 10:19:28,096 INFO L278 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2025-04-30 10:19:28,096 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-04-30 10:19:28,096 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:28,097 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:28,097 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-30 10:19:28,097 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:28,097 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:28,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1150657456, now seen corresponding path program 1 times [2025-04-30 10:19:28,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:28,097 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194457940] [2025-04-30 10:19:28,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:28,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:28,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-30 10:19:28,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-30 10:19:28,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:28,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:19:28,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:28,222 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194457940] [2025-04-30 10:19:28,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194457940] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:19:28,223 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517632328] [2025-04-30 10:19:28,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:28,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:28,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:28,226 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 10:19:28,227 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 10:19:28,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-30 10:19:28,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-30 10:19:28,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:28,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:28,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-30 10:19:28,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:19:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-30 10:19:28,367 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:19:28,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517632328] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:28,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:19:28,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-04-30 10:19:28,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321357179] [2025-04-30 10:19:28,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:28,368 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-30 10:19:28,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:28,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-30 10:19:28,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-04-30 10:19:28,369 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 10:19:28,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:28,411 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2025-04-30 10:19:28,411 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-30 10:19:28,411 INFO L79 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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) Word has length 19 [2025-04-30 10:19:28,412 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:28,412 INFO L225 Difference]: With dead ends: 35 [2025-04-30 10:19:28,412 INFO L226 Difference]: Without dead ends: 34 [2025-04-30 10:19:28,412 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 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 10:19:28,414 INFO L437 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:28,414 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 55 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:28,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-04-30 10:19:28,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-04-30 10:19:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 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 10:19:28,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2025-04-30 10:19:28,417 INFO L79 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 19 [2025-04-30 10:19:28,417 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:28,417 INFO L485 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2025-04-30 10:19:28,417 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 10:19:28,417 INFO L278 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2025-04-30 10:19:28,417 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-04-30 10:19:28,417 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:28,417 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:28,426 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 10:19:28,618 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:28,618 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:28,619 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:28,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1310642842, now seen corresponding path program 1 times [2025-04-30 10:19:28,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:28,620 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829562014] [2025-04-30 10:19:28,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:28,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:28,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-30 10:19:28,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-30 10:19:28,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:28,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:28,722 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-30 10:19:28,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:28,722 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829562014] [2025-04-30 10:19:28,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829562014] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:28,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-30 10:19:28,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-30 10:19:28,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235510187] [2025-04-30 10:19:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:28,723 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:19:28,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:28,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:19:28,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:19:28,723 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 10:19:28,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:28,752 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2025-04-30 10:19:28,753 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-30 10:19:28,753 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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) Word has length 20 [2025-04-30 10:19:28,753 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:28,753 INFO L225 Difference]: With dead ends: 36 [2025-04-30 10:19:28,753 INFO L226 Difference]: Without dead ends: 35 [2025-04-30 10:19:28,754 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-30 10:19:28,754 INFO L437 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:28,754 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 43 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:28,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-04-30 10:19:28,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 28. [2025-04-30 10:19:28,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 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 10:19:28,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2025-04-30 10:19:28,761 INFO L79 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 20 [2025-04-30 10:19:28,761 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:28,761 INFO L485 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2025-04-30 10:19:28,761 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 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 10:19:28,761 INFO L278 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2025-04-30 10:19:28,761 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-04-30 10:19:28,761 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:28,761 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:28,761 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-30 10:19:28,761 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:28,762 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:28,762 INFO L85 PathProgramCache]: Analyzing trace with hash -576720126, now seen corresponding path program 1 times [2025-04-30 10:19:28,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:28,762 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830457187] [2025-04-30 10:19:28,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:28,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:28,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-30 10:19:28,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-30 10:19:28,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:28,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:28,842 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:28,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:28,843 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830457187] [2025-04-30 10:19:28,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830457187] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:19:28,843 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631385926] [2025-04-30 10:19:28,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:28,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:28,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:28,845 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 10:19:28,846 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 10:19:28,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-30 10:19:28,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-30 10:19:28,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:28,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:28,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-30 10:19:28,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:19:28,952 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:28,952 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-30 10:19:28,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631385926] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-30 10:19:28,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-30 10:19:28,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-04-30 10:19:28,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761718703] [2025-04-30 10:19:28,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-30 10:19:28,953 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-30 10:19:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:28,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-30 10:19:28,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:19:28,954 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 10:19:28,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:28,981 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2025-04-30 10:19:28,981 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-30 10:19:28,981 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 25 [2025-04-30 10:19:28,982 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:28,982 INFO L225 Difference]: With dead ends: 31 [2025-04-30 10:19:28,982 INFO L226 Difference]: Without dead ends: 30 [2025-04-30 10:19:28,982 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-04-30 10:19:28,982 INFO L437 NwaCegarLoop]: 14 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:28,983 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-04-30 10:19:28,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2025-04-30 10:19:28,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 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 10:19:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2025-04-30 10:19:28,985 INFO L79 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 25 [2025-04-30 10:19:28,985 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:28,985 INFO L485 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2025-04-30 10:19:28,985 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 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 10:19:28,985 INFO L278 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2025-04-30 10:19:28,986 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-04-30 10:19:28,986 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:28,986 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:28,991 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 10:19:29,190 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,SelfDestructingSolverStorable6 [2025-04-30 10:19:29,190 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:29,190 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:29,191 INFO L85 PathProgramCache]: Analyzing trace with hash -698454620, now seen corresponding path program 1 times [2025-04-30 10:19:29,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:29,191 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760100639] [2025-04-30 10:19:29,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:29,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:29,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:19:29,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:19:29,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:29,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:29,246 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:29,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:29,246 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760100639] [2025-04-30 10:19:29,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760100639] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:19:29,246 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416970486] [2025-04-30 10:19:29,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-30 10:19:29,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:29,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:29,248 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 10:19:29,256 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 10:19:29,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-04-30 10:19:29,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-04-30 10:19:29,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-30 10:19:29,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:29,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-30 10:19:29,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:19:29,355 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:29,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:19:29,394 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:29,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416970486] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:19:29,395 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:19:29,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-30 10:19:29,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754687898] [2025-04-30 10:19:29,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:19:29,395 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-30 10:19:29,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:29,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-30 10:19:29,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-04-30 10:19:29,396 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 10:19:29,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:29,448 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2025-04-30 10:19:29,448 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-30 10:19:29,448 INFO L79 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 26 [2025-04-30 10:19:29,448 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:29,449 INFO L225 Difference]: With dead ends: 46 [2025-04-30 10:19:29,449 INFO L226 Difference]: Without dead ends: 45 [2025-04-30 10:19:29,449 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 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 10:19:29,449 INFO L437 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:29,449 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 69 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-30 10:19:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-04-30 10:19:29,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2025-04-30 10:19:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 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 10:19:29,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2025-04-30 10:19:29,457 INFO L79 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 26 [2025-04-30 10:19:29,458 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:29,458 INFO L485 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2025-04-30 10:19:29,458 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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 10:19:29,458 INFO L278 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2025-04-30 10:19:29,460 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-04-30 10:19:29,460 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:29,460 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:29,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-30 10:19:29,660 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:29,660 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:29,661 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:29,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1761792142, now seen corresponding path program 2 times [2025-04-30 10:19:29,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:29,661 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316813212] [2025-04-30 10:19:29,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:19:29,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:29,674 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 41 statements into 2 equivalence classes. [2025-04-30 10:19:29,682 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-04-30 10:19:29,683 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:19:29,683 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:29,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:29,884 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316813212] [2025-04-30 10:19:29,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316813212] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:19:29,884 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330241499] [2025-04-30 10:19:29,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-30 10:19:29,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:29,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:29,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:19:29,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-30 10:19:29,945 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 41 statements into 2 equivalence classes. [2025-04-30 10:19:29,969 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 41 of 41 statements. [2025-04-30 10:19:29,969 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-30 10:19:29,969 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:29,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-30 10:19:29,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:19:30,028 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:30,029 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:19:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-30 10:19:30,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330241499] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:19:30,186 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:19:30,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2025-04-30 10:19:30,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617662516] [2025-04-30 10:19:30,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:19:30,187 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-30 10:19:30,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:30,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-30 10:19:30,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-04-30 10:19:30,188 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 24 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 24 states have internal predecessors, (71), 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 10:19:30,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:30,261 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2025-04-30 10:19:30,261 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-30 10:19:30,262 INFO L79 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 24 states have internal predecessors, (71), 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 41 [2025-04-30 10:19:30,262 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:30,262 INFO L225 Difference]: With dead ends: 76 [2025-04-30 10:19:30,262 INFO L226 Difference]: Without dead ends: 75 [2025-04-30 10:19:30,263 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2025-04-30 10:19:30,263 INFO L437 NwaCegarLoop]: 15 mSDtfsCounter, 18 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:30,264 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 125 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-30 10:19:30,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2025-04-30 10:19:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2025-04-30 10:19:30,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.056338028169014) internal successors, (75), 71 states have internal predecessors, (75), 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 10:19:30,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2025-04-30 10:19:30,273 INFO L79 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 41 [2025-04-30 10:19:30,273 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:30,273 INFO L485 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2025-04-30 10:19:30,273 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 24 states have internal predecessors, (71), 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 10:19:30,273 INFO L278 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2025-04-30 10:19:30,274 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-04-30 10:19:30,275 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:30,276 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:30,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-30 10:19:30,476 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:30,476 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:30,477 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:30,477 INFO L85 PathProgramCache]: Analyzing trace with hash -324207310, now seen corresponding path program 3 times [2025-04-30 10:19:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:30,477 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929685194] [2025-04-30 10:19:30,477 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:19:30,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:30,491 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 71 statements into 11 equivalence classes. [2025-04-30 10:19:30,503 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 31 of 71 statements. [2025-04-30 10:19:30,503 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-30 10:19:30,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:30,744 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-04-30 10:19:30,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:30,744 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929685194] [2025-04-30 10:19:30,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929685194] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:19:30,744 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304523066] [2025-04-30 10:19:30,744 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-30 10:19:30,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:30,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:30,748 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:19:30,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-30 10:19:30,807 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 71 statements into 11 equivalence classes. [2025-04-30 10:19:30,831 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 31 of 71 statements. [2025-04-30 10:19:30,832 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-30 10:19:30,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:30,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-04-30 10:19:30,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:19:30,860 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-04-30 10:19:30,942 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-04-30 10:19:30,955 INFO L325 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-04-30 10:19:30,956 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-04-30 10:19:30,998 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-04-30 10:19:31,004 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-04-30 10:19:31,006 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2025-04-30 10:19:31,050 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-04-30 10:19:31,066 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-04-30 10:19:31,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:19:31,134 WARN L849 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_364 (Array Int Int)) (v_ArrVal_366 (Array Int Int))) (or (not (= v_ArrVal_364 (let ((.cse0 (+ |c_ULTIMATE.start_main_~p~0#1.offset| 4))) (store (select |c_#memory_int#1| |c_ULTIMATE.start_main_~p~0#1.base|) .cse0 (select v_ArrVal_364 .cse0))))) (not (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_364) |c_ULTIMATE.start_main_~t~0#1.base| v_ArrVal_366) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) is different from false [2025-04-30 10:19:31,161 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-30 10:19:31,162 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 79 [2025-04-30 10:19:31,179 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 58 [2025-04-30 10:19:31,238 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-04-30 10:19:31,244 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2025-04-30 10:19:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-04-30 10:19:31,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304523066] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:19:31,343 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:19:31,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2025-04-30 10:19:31,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357726379] [2025-04-30 10:19:31,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:19:31,343 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-30 10:19:31,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:31,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-30 10:19:31,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=244, Unknown=6, NotChecked=32, Total=342 [2025-04-30 10:19:31,344 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 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 10:19:31,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:31,470 INFO L93 Difference]: Finished difference Result 140 states and 145 transitions. [2025-04-30 10:19:31,470 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-30 10:19:31,470 INFO L79 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 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 71 [2025-04-30 10:19:31,471 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:31,471 INFO L225 Difference]: With dead ends: 140 [2025-04-30 10:19:31,471 INFO L226 Difference]: Without dead ends: 83 [2025-04-30 10:19:31,477 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=353, Unknown=6, NotChecked=40, Total=506 [2025-04-30 10:19:31,477 INFO L437 NwaCegarLoop]: 17 mSDtfsCounter, 104 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 40 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:31,477 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 119 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 99 Invalid, 0 Unknown, 40 Unchecked, 0.1s Time] [2025-04-30 10:19:31,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2025-04-30 10:19:31,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80. [2025-04-30 10:19:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.0632911392405062) internal successors, (84), 79 states have internal predecessors, (84), 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 10:19:31,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 84 transitions. [2025-04-30 10:19:31,482 INFO L79 Accepts]: Start accepts. Automaton has 80 states and 84 transitions. Word has length 71 [2025-04-30 10:19:31,482 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:31,482 INFO L485 AbstractCegarLoop]: Abstraction has 80 states and 84 transitions. [2025-04-30 10:19:31,483 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0) internal successors, (57), 19 states have internal predecessors, (57), 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 10:19:31,483 INFO L278 IsEmpty]: Start isEmpty. Operand 80 states and 84 transitions. [2025-04-30 10:19:31,484 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-04-30 10:19:31,484 INFO L210 NwaCegarLoop]: Found error trace [2025-04-30 10:19:31,484 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:31,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-30 10:19:31,688 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-04-30 10:19:31,688 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-04-30 10:19:31,688 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-30 10:19:31,689 INFO L85 PathProgramCache]: Analyzing trace with hash -611629273, now seen corresponding path program 4 times [2025-04-30 10:19:31,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-30 10:19:31,689 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803683535] [2025-04-30 10:19:31,689 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-30 10:19:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-30 10:19:31,701 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 79 statements into 2 equivalence classes. [2025-04-30 10:19:31,712 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 46 of 79 statements. [2025-04-30 10:19:31,714 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-30 10:19:31,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-04-30 10:19:32,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-30 10:19:32,072 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803683535] [2025-04-30 10:19:32,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803683535] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-30 10:19:32,073 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369687704] [2025-04-30 10:19:32,073 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-30 10:19:32,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:32,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-30 10:19:32,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-30 10:19:32,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-30 10:19:32,135 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 79 statements into 2 equivalence classes. [2025-04-30 10:19:32,166 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 46 of 79 statements. [2025-04-30 10:19:32,166 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-04-30 10:19:32,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-30 10:19:32,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 64 conjuncts are in the unsatisfiable core [2025-04-30 10:19:32,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-30 10:19:32,176 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-04-30 10:19:32,250 INFO L325 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2025-04-30 10:19:32,250 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2025-04-30 10:19:32,258 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-04-30 10:19:32,313 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-04-30 10:19:32,318 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2025-04-30 10:19:32,386 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-04-30 10:19:32,391 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-04-30 10:19:32,398 INFO L325 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-04-30 10:19:32,398 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-04-30 10:19:32,444 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2025-04-30 10:19:32,449 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-04-30 10:19:32,568 INFO L325 Elim1Store]: treesize reduction 14, result has 39.1 percent of original size [2025-04-30 10:19:32,568 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 35 [2025-04-30 10:19:32,574 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2025-04-30 10:19:32,581 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2025-04-30 10:19:32,586 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-04-30 10:19:32,659 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2025-04-30 10:19:32,687 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 20 proven. 14 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2025-04-30 10:19:32,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-30 10:19:32,777 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-30 10:19:32,777 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2025-04-30 10:19:32,782 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2025-04-30 10:19:32,887 WARN L849 $PredicateComparison]: unable to prove that (and (or (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (forall ((v_ArrVal_458 (Array Int Int)) (|v_ULTIMATE.start_main_~t~0#1.base_14| Int) (v_ArrVal_462 (Array Int Int))) (or (not (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_458) |v_ULTIMATE.start_main_~t~0#1.base_14| v_ArrVal_462) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~t~0#1.base_14|) 0))))) (forall ((v_ArrVal_458 (Array Int Int)) (|v_ULTIMATE.start_main_~t~0#1.base_14| Int) (v_ArrVal_462 (Array Int Int))) (or (not (= (select (select (store (store |c_#memory_int#1| |c_ULTIMATE.start_main_~p~0#1.base| v_ArrVal_458) |v_ULTIMATE.start_main_~t~0#1.base_14| v_ArrVal_462) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)) (= |v_ULTIMATE.start_main_~t~0#1.base_14| |c_ULTIMATE.start_main_~a~0#1.base|) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~t~0#1.base_14|) 0))))) is different from false [2025-04-30 10:19:33,146 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-30 10:19:33,147 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 823 treesize of output 816 [2025-04-30 10:19:33,164 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 223 [2025-04-30 10:19:33,174 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 219 [2025-04-30 10:19:33,183 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 215 [2025-04-30 10:19:33,280 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-04-30 10:19:33,287 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-04-30 10:19:33,297 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 114 [2025-04-30 10:19:33,307 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-04-30 10:19:33,322 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2025-04-30 10:19:33,325 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 54 [2025-04-30 10:19:33,930 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 58 proven. 6 refuted. 0 times theorem prover too weak. 216 trivial. 9 not checked. [2025-04-30 10:19:33,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369687704] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-30 10:19:33,931 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-30 10:19:33,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 12] total 28 [2025-04-30 10:19:33,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745818449] [2025-04-30 10:19:33,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-30 10:19:33,931 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-04-30 10:19:33,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-30 10:19:33,932 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-04-30 10:19:33,932 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=594, Unknown=2, NotChecked=50, Total=756 [2025-04-30 10:19:33,932 INFO L87 Difference]: Start difference. First operand 80 states and 84 transitions. Second operand has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 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 10:19:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-30 10:19:34,205 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2025-04-30 10:19:34,205 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-04-30 10:19:34,205 INFO L79 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 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 79 [2025-04-30 10:19:34,206 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-30 10:19:34,206 INFO L225 Difference]: With dead ends: 81 [2025-04-30 10:19:34,206 INFO L226 Difference]: Without dead ends: 0 [2025-04-30 10:19:34,206 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=819, Unknown=2, NotChecked=60, Total=1056 [2025-04-30 10:19:34,207 INFO L437 NwaCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-30 10:19:34,207 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 156 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 141 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2025-04-30 10:19:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-30 10:19:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-30 10:19:34,207 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 10:19:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-30 10:19:34,208 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2025-04-30 10:19:34,208 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-30 10:19:34,208 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-30 10:19:34,208 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 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 10:19:34,208 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-30 10:19:34,208 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-30 10:19:34,210 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-04-30 10:19:34,210 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-04-30 10:19:34,210 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-04-30 10:19:34,210 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-04-30 10:19:34,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-30 10:19:34,411 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-30 10:19:34,414 INFO L422 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1] [2025-04-30 10:19:34,415 INFO L312 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-04-30 10:19:34,489 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-30 10:19:34,496 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset [2025-04-30 10:19:34,497 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~p~0!offset [2025-04-30 10:19:34,497 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-04-30 10:19:34,497 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-04-30 10:19:34,497 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~p~0!base,]]] [2025-04-30 10:19:34,497 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!base [2025-04-30 10:19:34,497 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~p~0!base [2025-04-30 10:19:34,504 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset [2025-04-30 10:19:34,504 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!base [2025-04-30 10:19:34,504 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~p~0!base [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~p~0!offset [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!offset [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~a~0!base [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~p~0!base [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$#1.offset [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$#1.offset,GLOBAL] [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$#1.offset,GLOBAL],[IdentifierExpression[~a~0!base,]]] [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#1 [2025-04-30 10:19:34,505 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] [2025-04-30 10:19:34,506 WARN L932 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,]]] [2025-04-30 10:19:34,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.04 10:19:34 BoogieIcfgContainer [2025-04-30 10:19:34,506 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-30 10:19:34,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-30 10:19:34,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-30 10:19:34,507 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-30 10:19:34,507 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.04 10:19:27" (3/4) ... [2025-04-30 10:19:34,509 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-04-30 10:19:34,513 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure myexit [2025-04-30 10:19:34,516 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-04-30 10:19:34,516 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-04-30 10:19:34,516 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-04-30 10:19:34,516 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-04-30 10:19:34,570 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-04-30 10:19:34,571 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-04-30 10:19:34,571 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-30 10:19:34,571 INFO L158 Benchmark]: Toolchain (without parser) took 8086.03ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 106.5MB in the beginning and 178.8MB in the end (delta: -72.2MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2025-04-30 10:19:34,571 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:19:34,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.66ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 86.4MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:19:34,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.34ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 84.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:19:34,572 INFO L158 Benchmark]: Boogie Preprocessor took 36.57ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-30 10:19:34,572 INFO L158 Benchmark]: RCFGBuilder took 298.70ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 68.3MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-04-30 10:19:34,572 INFO L158 Benchmark]: TraceAbstraction took 7280.68ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 67.8MB in the beginning and 185.1MB in the end (delta: -117.3MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2025-04-30 10:19:34,572 INFO L158 Benchmark]: Witness Printer took 64.21ms. Allocated memory is still 226.5MB. Free memory was 185.1MB in the beginning and 178.8MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-04-30 10:19:34,573 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.66ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 86.4MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.34ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 84.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.57ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.5MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.70ms. Allocated memory is still 142.6MB. Free memory was 82.5MB in the beginning and 68.3MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7280.68ms. Allocated memory was 142.6MB in the beginning and 226.5MB in the end (delta: 83.9MB). Free memory was 67.8MB in the beginning and 185.1MB in the end (delta: -117.3MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * Witness Printer took 64.21ms. Allocated memory is still 226.5MB. Free memory was 185.1MB in the beginning and 178.8MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~p~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~p~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~p~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~p~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~p~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~a~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~a~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~p~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$#1.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$#1.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$#1.offset,GLOBAL],[IdentifierExpression[~a~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#1 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#1,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#1,GLOBAL],[IdentifierExpression[~a~0!base,]]] * 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: 543]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 543]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 554]: 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 2 procedures, 34 locations, 45 edges, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 11, TraceHistogramMax: 11, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 197 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 197 mSDsluCounter, 805 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 58 IncrementalHoareTripleChecker+Unchecked, 603 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 558 IncrementalHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 202 mSDtfsCounter, 558 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 542 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 109 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=10, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 24 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 592 NumberOfCodeBlocks, 446 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 788 ConstructedInterpolants, 42 QuantifiedInterpolants, 4699 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1061 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 1696/1924 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 4 specifications checked. All of them hold - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: (i == 0) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: ((i == 0) || (1 <= i)) RESULT: Ultimate proved your program to be correct! [2025-04-30 10:19:34,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE