./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/float-benchs/filter2_reinit.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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 ../sv-benchmarks/c/float-benchs/filter2_reinit.c -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 77348271d6b3efbe553fb980482d4643f648de35ae877e068f35f88b7419ce44 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:51:07,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:51:07,083 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 01:51:07,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:51:07,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:51:07,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:51:07,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:51:07,113 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:51:07,114 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:51:07,114 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:51:07,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:51:07,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:51:07,115 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:51:07,115 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:51:07,115 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:51:07,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:51:07,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 01:51:07,116 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:51:07,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:51:07,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:51:07,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:51:07,116 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:51:07,117 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:51:07,117 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:51:07,118 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:51:07,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:51:07,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:51:07,119 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:51:07,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:51:07,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:51:07,119 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 -> 77348271d6b3efbe553fb980482d4643f648de35ae877e068f35f88b7419ce44 [2025-03-09 01:51:07,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:51:07,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:51:07,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:51:07,369 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:51:07,369 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:51:07,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/filter2_reinit.c [2025-03-09 01:51:08,507 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/828a2273a/586e37bf652c4bfbbc522984c1fac186/FLAG24966e7c3 [2025-03-09 01:51:08,714 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:51:08,715 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/filter2_reinit.c [2025-03-09 01:51:08,733 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/828a2273a/586e37bf652c4bfbbc522984c1fac186/FLAG24966e7c3 [2025-03-09 01:51:09,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/828a2273a/586e37bf652c4bfbbc522984c1fac186 [2025-03-09 01:51:09,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:51:09,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:51:09,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:51:09,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:51:09,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:51:09,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c7fe49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09, skipping insertion in model container [2025-03-09 01:51:09,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,090 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:51:09,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:51:09,197 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:51:09,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:51:09,224 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:51:09,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09 WrapperNode [2025-03-09 01:51:09,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:51:09,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:51:09,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:51:09,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:51:09,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,248 INFO L138 Inliner]: procedures = 15, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-03-09 01:51:09,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:51:09,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:51:09,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:51:09,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:51:09,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,261 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,269 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-09 01:51:09,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,273 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:51:09,276 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:51:09,276 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:51:09,276 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:51:09,277 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (1/1) ... [2025-03-09 01:51:09,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:51:09,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:51:09,300 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) [2025-03-09 01:51:09,303 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 [2025-03-09 01:51:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:51:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 01:51:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 01:51:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:51:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:51:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:51:09,356 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:51:09,357 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:51:09,476 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-03-09 01:51:09,476 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:51:09,484 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:51:09,484 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:51:09,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:51:09 BoogieIcfgContainer [2025-03-09 01:51:09,485 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:51:09,487 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:51:09,487 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:51:09,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:51:09,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:51:09" (1/3) ... [2025-03-09 01:51:09,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582e66ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:51:09, skipping insertion in model container [2025-03-09 01:51:09,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:51:09" (2/3) ... [2025-03-09 01:51:09,492 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@582e66ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:51:09, skipping insertion in model container [2025-03-09 01:51:09,492 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:51:09" (3/3) ... [2025-03-09 01:51:09,493 INFO L128 eAbstractionObserver]: Analyzing ICFG filter2_reinit.c [2025-03-09 01:51:09,505 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:51:09,506 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG filter2_reinit.c that has 2 procedures, 25 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-03-09 01:51:09,545 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:51:09,553 INFO L333 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;@5f7ff01a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:51:09,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 01:51:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 01:51:09,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 01:51:09,562 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:51:09,562 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:51:09,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 01:51:09,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:51:09,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1729852418, now seen corresponding path program 1 times [2025-03-09 01:51:09,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:51:09,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5589629] [2025-03-09 01:51:09,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:51:09,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:51:09,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 01:51:09,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 01:51:09,631 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:51:09,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:51:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 01:51:09,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:51:09,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5589629] [2025-03-09 01:51:09,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5589629] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:51:09,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633994442] [2025-03-09 01:51:09,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:51:09,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:51:09,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:51:09,683 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) [2025-03-09 01:51:09,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 01:51:09,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 01:51:09,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 01:51:09,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:51:09,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:51:09,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-09 01:51:09,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:51:09,767 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-03-09 01:51:09,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:51:09,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633994442] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:51:09,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 01:51:09,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-09 01:51:09,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916104961] [2025-03-09 01:51:09,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:51:09,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 01:51:09,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:51:09,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 01:51:09,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 01:51:09,794 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:51:09,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:51:09,806 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2025-03-09 01:51:09,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 01:51:09,810 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2025-03-09 01:51:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:51:09,813 INFO L225 Difference]: With dead ends: 46 [2025-03-09 01:51:09,814 INFO L226 Difference]: Without dead ends: 20 [2025-03-09 01:51:09,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 01:51:09,820 INFO L435 NwaCegarLoop]: 27 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, 27 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 [2025-03-09 01:51:09,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:51:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2025-03-09 01:51:09,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2025-03-09 01:51:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-09 01:51:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2025-03-09 01:51:09,852 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 25 [2025-03-09 01:51:09,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:51:09,853 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2025-03-09 01:51:09,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:51:09,853 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2025-03-09 01:51:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-03-09 01:51:09,855 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:51:09,855 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:51:09,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 01:51:10,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-09 01:51:10,060 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 01:51:10,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:51:10,060 INFO L85 PathProgramCache]: Analyzing trace with hash 458477151, now seen corresponding path program 1 times [2025-03-09 01:51:10,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:51:10,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345689036] [2025-03-09 01:51:10,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:51:10,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:51:10,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-09 01:51:10,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-09 01:51:10,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:51:10,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:51:10,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 01:51:10,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:51:10,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345689036] [2025-03-09 01:51:10,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345689036] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:51:10,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:51:10,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:51:10,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995998168] [2025-03-09 01:51:10,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:51:10,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:51:10,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:51:10,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:51:10,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:51:10,199 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:51:10,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:51:10,228 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2025-03-09 01:51:10,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:51:10,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2025-03-09 01:51:10,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:51:10,229 INFO L225 Difference]: With dead ends: 31 [2025-03-09 01:51:10,229 INFO L226 Difference]: Without dead ends: 29 [2025-03-09 01:51:10,229 INFO L434 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 [2025-03-09 01:51:10,230 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:51:10,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 52 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:51:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-03-09 01:51:10,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-03-09 01:51:10,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 01:51:10,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2025-03-09 01:51:10,237 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 25 [2025-03-09 01:51:10,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:51:10,238 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2025-03-09 01:51:10,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-09 01:51:10,239 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2025-03-09 01:51:10,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-03-09 01:51:10,239 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:51:10,240 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:51:10,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:51:10,240 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 01:51:10,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:51:10,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1032906381, now seen corresponding path program 1 times [2025-03-09 01:51:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:51:10,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860864421] [2025-03-09 01:51:10,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:51:10,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:51:10,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 01:51:10,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 01:51:10,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:51:10,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:51:10,401 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 01:51:10,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:51:10,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860864421] [2025-03-09 01:51:10,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860864421] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 01:51:10,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689736510] [2025-03-09 01:51:10,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:51:10,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 01:51:10,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:51:10,405 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) [2025-03-09 01:51:10,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 01:51:10,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-09 01:51:10,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-09 01:51:10,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:51:10,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:51:10,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 01:51:10,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 01:51:10,543 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-09 01:51:10,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 01:51:10,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689736510] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:51:10,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 01:51:10,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-03-09 01:51:10,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071601974] [2025-03-09 01:51:10,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:51:10,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 01:51:10,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:51:10,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 01:51:10,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 01:51:10,546 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 01:51:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:51:10,562 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2025-03-09 01:51:10,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:51:10,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2025-03-09 01:51:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:51:10,563 INFO L225 Difference]: With dead ends: 29 [2025-03-09 01:51:10,563 INFO L226 Difference]: Without dead ends: 28 [2025-03-09 01:51:10,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-03-09 01:51:10,564 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:51:10,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 58 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:51:10,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-09 01:51:10,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-03-09 01:51:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-09 01:51:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2025-03-09 01:51:10,568 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 38 [2025-03-09 01:51:10,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:51:10,568 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2025-03-09 01:51:10,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 01:51:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2025-03-09 01:51:10,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-03-09 01:51:10,568 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 01:51:10,568 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:51:10,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 01:51:10,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-09 01:51:10,773 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 01:51:10,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:51:10,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1955326712, now seen corresponding path program 1 times [2025-03-09 01:51:10,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:51:10,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447309707] [2025-03-09 01:51:10,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:51:10,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:51:10,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 01:51:10,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 01:51:10,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:51:10,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:51:10,843 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-09 01:51:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:51:10,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447309707] [2025-03-09 01:51:10,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447309707] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:51:10,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:51:10,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 01:51:10,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604090721] [2025-03-09 01:51:10,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:51:10,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:51:10,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:51:10,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:51:10,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:51:10,844 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 01:51:10,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 01:51:10,860 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2025-03-09 01:51:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:51:10,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2025-03-09 01:51:10,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 01:51:10,861 INFO L225 Difference]: With dead ends: 28 [2025-03-09 01:51:10,861 INFO L226 Difference]: Without dead ends: 0 [2025-03-09 01:51:10,861 INFO L434 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 [2025-03-09 01:51:10,862 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 01:51:10,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 01:51:10,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-09 01:51:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-09 01:51:10,863 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) [2025-03-09 01:51:10,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-09 01:51:10,863 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2025-03-09 01:51:10,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 01:51:10,863 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-09 01:51:10,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-09 01:51:10,863 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-09 01:51:10,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-09 01:51:10,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 01:51:10,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 01:51:10,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:51:10,868 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-09 01:51:10,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-09 01:51:10,892 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 01:51:10,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 01:51:10 BoogieIcfgContainer [2025-03-09 01:51:10,902 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 01:51:10,903 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 01:51:10,903 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 01:51:10,903 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 01:51:10,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:51:09" (3/4) ... [2025-03-09 01:51:10,905 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 01:51:10,908 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-03-09 01:51:10,911 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-03-09 01:51:10,911 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 01:51:10,911 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-09 01:51:10,911 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 01:51:10,975 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 01:51:10,975 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 01:51:10,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 01:51:10,976 INFO L158 Benchmark]: Toolchain (without parser) took 1905.83ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 85.5MB in the end (delta: 30.5MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2025-03-09 01:51:10,976 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:51:10,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.32ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 105.0MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:51:10,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.94ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 104.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:51:10,976 INFO L158 Benchmark]: Boogie Preprocessor took 25.35ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:51:10,977 INFO L158 Benchmark]: IcfgBuilder took 209.01ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 90.2MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 01:51:10,977 INFO L158 Benchmark]: TraceAbstraction took 1415.05ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 90.8MB in the end (delta: -552.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 01:51:10,977 INFO L158 Benchmark]: Witness Printer took 72.55ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 85.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 01:51:10,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.32ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 105.0MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.94ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 104.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.35ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 102.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 209.01ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 90.2MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1415.05ms. Allocated memory is still 142.6MB. Free memory was 90.2MB in the beginning and 90.8MB in the end (delta: -552.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.55ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 85.5MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: 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, 25 locations, 33 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 80 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=2, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 121/133 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 34]: Location Invariant Derived location invariant: (0 < (2147483649 + i)) RESULT: Ultimate proved your program to be correct! [2025-03-09 01:51:10,995 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