./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27f6dd6670246e3ca4e6c623cb9f51b5c6047d451228e1aee45d57f14ef18408 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:35:34,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:35:34,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-24 19:35:34,089 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:35:34,089 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:35:34,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:35:34,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:35:34,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:35:34,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:35:34,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:35:34,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:35:34,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:35:34,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:35:34,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:35:34,134 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:35:34,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:35:34,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 19:35:34,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:35:34,137 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:35:34,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 19:35:34,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:35:34,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 19:35:34,143 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:35:34,143 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 19:35:34,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:35:34,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 19:35:34,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:35:34,144 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:35:34,144 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:35:34,144 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:35:34,144 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:35:34,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:35:34,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:35:34,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:35:34,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 19:35:34,145 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:35:34,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:35:34,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:35:34,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:35:34,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:35:34,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:35:34,150 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27f6dd6670246e3ca4e6c623cb9f51b5c6047d451228e1aee45d57f14ef18408 [2024-10-24 19:35:34,416 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:35:34,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:35:34,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:35:34,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:35:34,457 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:35:34,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c [2024-10-24 19:35:36,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:35:36,200 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:35:36,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c [2024-10-24 19:35:36,207 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b93a47c/1e2745059aca416e86ef2f848c690813/FLAGc86b9a999 [2024-10-24 19:35:36,606 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34b93a47c/1e2745059aca416e86ef2f848c690813 [2024-10-24 19:35:36,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:35:36,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:35:36,616 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:35:36,616 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:35:36,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:35:36,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28eacf10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36, skipping insertion in model container [2024-10-24 19:35:36,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:35:36,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:35:36,821 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:35:36,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:35:36,847 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:35:36,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36 WrapperNode [2024-10-24 19:35:36,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:35:36,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:35:36,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:35:36,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:35:36,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,880 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-10-24 19:35:36,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:35:36,882 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:35:36,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:35:36,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:35:36,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,894 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,906 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-24 19:35:36,920 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,922 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,931 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,932 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:35:36,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:35:36,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:35:36,935 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:35:36,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (1/1) ... [2024-10-24 19:35:36,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:35:37,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:35:37,045 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) [2024-10-24 19:35:37,051 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 [2024-10-24 19:35:37,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:35:37,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:35:37,154 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:35:37,156 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:35:37,253 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-24 19:35:37,254 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:35:37,277 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:35:37,278 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 19:35:37,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:37 BoogieIcfgContainer [2024-10-24 19:35:37,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:35:37,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:35:37,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:35:37,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:35:37,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:35:36" (1/3) ... [2024-10-24 19:35:37,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efb1bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:37, skipping insertion in model container [2024-10-24 19:35:37,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:36" (2/3) ... [2024-10-24 19:35:37,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efb1bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:37, skipping insertion in model container [2024-10-24 19:35:37,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:37" (3/3) ... [2024-10-24 19:35:37,296 INFO L112 eAbstractionObserver]: Analyzing ICFG or-01-false.c [2024-10-24 19:35:37,315 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:35:37,316 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:35:37,390 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:35:37,396 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;@57d9b0a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:35:37,397 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 19:35:37,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 19:35:37,406 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:35:37,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 19:35:37,407 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 19:35:37,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:35:37,415 INFO L85 PathProgramCache]: Analyzing trace with hash 63141352, now seen corresponding path program 1 times [2024-10-24 19:35:37,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:35:37,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799091261] [2024-10-24 19:35:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:35:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:35:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:35:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:35:37,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:35:37,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799091261] [2024-10-24 19:35:37,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799091261] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:35:37,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:35:37,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:35:37,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619215591] [2024-10-24 19:35:37,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:35:37,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:35:37,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:35:37,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:35:37,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:35:37,703 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-24 19:35:37,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:35:37,754 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2024-10-24 19:35:37,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:35:37,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2024-10-24 19:35:37,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:35:37,769 INFO L225 Difference]: With dead ends: 28 [2024-10-24 19:35:37,770 INFO L226 Difference]: Without dead ends: 14 [2024-10-24 19:35:37,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:35:37,775 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:35:37,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 10 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:35:37,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-24 19:35:37,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2024-10-24 19:35:37,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:37,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2024-10-24 19:35:37,803 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2024-10-24 19:35:37,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:35:37,804 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2024-10-24 19:35:37,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2024-10-24 19:35:37,804 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-10-24 19:35:37,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-24 19:35:37,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:35:37,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-24 19:35:37,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:35:37,806 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 19:35:37,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:35:37,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1957436683, now seen corresponding path program 1 times [2024-10-24 19:35:37,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:35:37,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073281363] [2024-10-24 19:35:37,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:35:37,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:35:37,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:35:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:35:37,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:35:37,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073281363] [2024-10-24 19:35:37,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073281363] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:35:37,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:35:37,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:35:37,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958182698] [2024-10-24 19:35:37,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:35:37,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:35:37,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:35:37,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:35:37,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:35:37,853 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:35:37,870 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2024-10-24 19:35:37,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:35:37,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-24 19:35:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:35:37,871 INFO L225 Difference]: With dead ends: 21 [2024-10-24 19:35:37,871 INFO L226 Difference]: Without dead ends: 12 [2024-10-24 19:35:37,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:35:37,873 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:35:37,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:35:37,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-24 19:35:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-24 19:35:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 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) [2024-10-24 19:35:37,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-10-24 19:35:37,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2024-10-24 19:35:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:35:37,882 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-10-24 19:35:37,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:37,883 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-10-24 19:35:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-24 19:35:37,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:35:37,884 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:35:37,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:35:37,884 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 19:35:37,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:35:37,886 INFO L85 PathProgramCache]: Analyzing trace with hash 551052683, now seen corresponding path program 1 times [2024-10-24 19:35:37,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:35:37,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031193738] [2024-10-24 19:35:37,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:35:37,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:35:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:35:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:35:38,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:35:38,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031193738] [2024-10-24 19:35:38,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031193738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:35:38,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:35:38,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:35:38,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941278803] [2024-10-24 19:35:38,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:35:38,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:35:38,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:35:38,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:35:38,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:35:38,025 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:38,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:35:38,121 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-10-24 19:35:38,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:35:38,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-24 19:35:38,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:35:38,124 INFO L225 Difference]: With dead ends: 18 [2024-10-24 19:35:38,124 INFO L226 Difference]: Without dead ends: 17 [2024-10-24 19:35:38,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:35:38,127 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 19:35:38,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 19:35:38,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-24 19:35:38,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2024-10-24 19:35:38,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 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) [2024-10-24 19:35:38,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2024-10-24 19:35:38,139 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 7 [2024-10-24 19:35:38,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:35:38,140 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2024-10-24 19:35:38,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:38,141 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2024-10-24 19:35:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-24 19:35:38,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:35:38,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:35:38,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:35:38,142 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 19:35:38,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:35:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash -97235953, now seen corresponding path program 1 times [2024-10-24 19:35:38,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:35:38,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162475616] [2024-10-24 19:35:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:35:38,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:35:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:35:38,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:35:38,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:35:38,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 19:35:38,194 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:35:38,195 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-24 19:35:38,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-24 19:35:38,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:35:38,200 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-24 19:35:38,213 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:35:38,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:35:38 BoogieIcfgContainer [2024-10-24 19:35:38,216 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:35:38,217 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:35:38,217 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:35:38,217 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:35:38,218 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:37" (3/4) ... [2024-10-24 19:35:38,220 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 19:35:38,221 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:35:38,221 INFO L158 Benchmark]: Toolchain (without parser) took 1608.83ms. Allocated memory is still 178.3MB. Free memory was 112.5MB in the beginning and 97.6MB in the end (delta: 14.9MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,221 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 104.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:35:38,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.21ms. Allocated memory is still 178.3MB. Free memory was 112.4MB in the beginning and 101.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,222 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.49ms. Allocated memory is still 178.3MB. Free memory was 101.2MB in the beginning and 99.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,223 INFO L158 Benchmark]: Boogie Preprocessor took 51.53ms. Allocated memory is still 178.3MB. Free memory was 99.8MB in the beginning and 151.9MB in the end (delta: -52.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,223 INFO L158 Benchmark]: RCFGBuilder took 346.50ms. Allocated memory is still 178.3MB. Free memory was 151.9MB in the beginning and 140.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,223 INFO L158 Benchmark]: TraceAbstraction took 933.78ms. Allocated memory is still 178.3MB. Free memory was 140.3MB in the beginning and 98.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,223 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 178.3MB. Free memory was 98.4MB in the beginning and 97.6MB in the end (delta: 735.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:35:38,225 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 104.9MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 232.21ms. Allocated memory is still 178.3MB. Free memory was 112.4MB in the beginning and 101.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.49ms. Allocated memory is still 178.3MB. Free memory was 101.2MB in the beginning and 99.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.53ms. Allocated memory is still 178.3MB. Free memory was 99.8MB in the beginning and 151.9MB in the end (delta: -52.1MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. * RCFGBuilder took 346.50ms. Allocated memory is still 178.3MB. Free memory was 151.9MB in the beginning and 140.9MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 933.78ms. Allocated memory is still 178.3MB. Free memory was 140.3MB in the beginning and 98.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 178.3MB. Free memory was 98.4MB in the beginning and 97.6MB in the end (delta: 735.4kB). Peak memory consumption was 2.1MB. 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 - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 21. Possible FailurePath: [L14] int a, b; [L15] int x; [L16] a = 16 [L17] b = 30 [L18] x = __VERIFIER_nondet_int() [L20] COND TRUE x>=0 VAL [a=16, b=30, x=2147483647] [L21] EXPR b|a VAL [a=16, x=2147483647] [L21] b = b|a [L22] x+b VAL [a=16] - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 17 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-24 19:35:38,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27f6dd6670246e3ca4e6c623cb9f51b5c6047d451228e1aee45d57f14ef18408 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:35:40,515 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:35:40,602 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-10-24 19:35:40,607 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:35:40,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:35:40,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-10-24 19:35:40,643 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:35:40,644 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:35:40,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:35:40,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:35:40,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:35:40,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:35:40,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:35:40,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:35:40,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:35:40,650 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:35:40,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:35:40,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 19:35:40,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:35:40,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 19:35:40,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:35:40,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 19:35:40,656 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:35:40,656 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 19:35:40,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:35:40,656 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 19:35:40,656 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 19:35:40,657 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:35:40,657 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 19:35:40,657 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:35:40,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:35:40,658 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:35:40,658 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:35:40,658 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:35:40,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:35:40,659 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:35:40,659 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:35:40,659 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 19:35:40,661 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 19:35:40,661 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 19:35:40,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:35:40,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:35:40,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:35:40,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:35:40,664 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 19:35:40,664 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27f6dd6670246e3ca4e6c623cb9f51b5c6047d451228e1aee45d57f14ef18408 [2024-10-24 19:35:41,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:35:41,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:35:41,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:35:41,033 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:35:41,035 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:35:41,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c [2024-10-24 19:35:42,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:35:42,881 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:35:42,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-bwb/or-01-false.c [2024-10-24 19:35:42,892 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800d8feef/1a014b00634841bfa53b6bde7507779e/FLAGba4791e51 [2024-10-24 19:35:42,905 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/800d8feef/1a014b00634841bfa53b6bde7507779e [2024-10-24 19:35:42,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:35:42,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:35:42,910 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:35:42,910 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:35:42,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:35:42,917 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:42" (1/1) ... [2024-10-24 19:35:42,918 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c8ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:42, skipping insertion in model container [2024-10-24 19:35:42,918 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:35:42" (1/1) ... [2024-10-24 19:35:42,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:35:43,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:35:43,105 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:35:43,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:35:43,133 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:35:43,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43 WrapperNode [2024-10-24 19:35:43,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:35:43,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:35:43,138 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:35:43,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:35:43,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,166 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-10-24 19:35:43,166 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:35:43,167 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:35:43,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:35:43,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:35:43,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,186 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-24 19:35:43,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:35:43,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:35:43,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:35:43,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:35:43,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (1/1) ... [2024-10-24 19:35:43,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:35:43,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:35:43,243 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) [2024-10-24 19:35:43,246 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 [2024-10-24 19:35:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:35:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:35:43,352 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:35:43,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:35:43,468 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-10-24 19:35:43,469 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:35:43,502 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:35:43,503 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 19:35:43,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:43 BoogieIcfgContainer [2024-10-24 19:35:43,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:35:43,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:35:43,506 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:35:43,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:35:43,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:35:42" (1/3) ... [2024-10-24 19:35:43,511 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af6555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:43, skipping insertion in model container [2024-10-24 19:35:43,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:35:43" (2/3) ... [2024-10-24 19:35:43,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af6555b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:35:43, skipping insertion in model container [2024-10-24 19:35:43,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:43" (3/3) ... [2024-10-24 19:35:43,514 INFO L112 eAbstractionObserver]: Analyzing ICFG or-01-false.c [2024-10-24 19:35:43,531 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:35:43,532 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:35:43,594 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:35:43,603 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;@36870d91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:35:43,605 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 19:35:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 5 states have (on average 1.8) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:35:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-24 19:35:43,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:35:43,615 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-24 19:35:43,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 19:35:43,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:35:43,623 INFO L85 PathProgramCache]: Analyzing trace with hash 52247, now seen corresponding path program 1 times [2024-10-24 19:35:43,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:35:43,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91663041] [2024-10-24 19:35:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:35:43,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:35:43,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:35:43,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:35:43,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-24 19:35:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:35:43,694 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 19:35:43,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 19:35:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:35:43,849 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 19:35:43,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-24 19:35:43,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91663041] [2024-10-24 19:35:43,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91663041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:35:43,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:35:43,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 19:35:43,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711720815] [2024-10-24 19:35:43,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:35:43,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:35:43,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-24 19:35:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:35:43,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:35:43,888 INFO L87 Difference]: Start difference. First operand has 8 states, 5 states have (on average 1.8) internal successors, (9), 7 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-24 19:35:43,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 19:35:43,972 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2024-10-24 19:35:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:35:43,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2024-10-24 19:35:43,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 19:35:43,983 INFO L225 Difference]: With dead ends: 11 [2024-10-24 19:35:43,983 INFO L226 Difference]: Without dead ends: 6 [2024-10-24 19:35:43,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:35:43,990 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 19:35:43,992 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 19:35:44,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-10-24 19:35:44,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2024-10-24 19:35:44,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-10-24 19:35:44,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2024-10-24 19:35:44,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2024-10-24 19:35:44,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 19:35:44,024 INFO L471 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2024-10-24 19:35:44,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-10-24 19:35:44,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2024-10-24 19:35:44,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-24 19:35:44,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 19:35:44,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-24 19:35:44,029 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-24 19:35:44,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:35:44,229 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 19:35:44,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:35:44,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1619702, now seen corresponding path program 1 times [2024-10-24 19:35:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 19:35:44,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767373995] [2024-10-24 19:35:44,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:35:44,230 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:35:44,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 19:35:44,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-24 19:35:44,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-24 19:35:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:35:44,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 19:35:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 19:35:44,278 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 19:35:44,279 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 19:35:44,280 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-24 19:35:44,282 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-24 19:35:44,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-24 19:35:44,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-24 19:35:44,487 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 19:35:44,501 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:35:44,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:35:44 BoogieIcfgContainer [2024-10-24 19:35:44,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:35:44,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:35:44,506 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:35:44,506 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:35:44,507 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:35:43" (3/4) ... [2024-10-24 19:35:44,508 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-24 19:35:44,543 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:35:44,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:35:44,544 INFO L158 Benchmark]: Toolchain (without parser) took 1634.64ms. Allocated memory is still 60.8MB. Free memory was 42.0MB in the beginning and 26.4MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 19:35:44,544 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 33.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:35:44,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.49ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 30.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 19:35:44,545 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.97ms. Allocated memory is still 60.8MB. Free memory was 30.4MB in the beginning and 29.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:35:44,546 INFO L158 Benchmark]: Boogie Preprocessor took 34.90ms. Allocated memory is still 60.8MB. Free memory was 29.0MB in the beginning and 27.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:35:44,546 INFO L158 Benchmark]: RCFGBuilder took 301.70ms. Allocated memory is still 60.8MB. Free memory was 27.4MB in the beginning and 36.0MB in the end (delta: -8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-24 19:35:44,546 INFO L158 Benchmark]: TraceAbstraction took 998.88ms. Allocated memory is still 60.8MB. Free memory was 35.2MB in the beginning and 27.9MB in the end (delta: 7.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-10-24 19:35:44,547 INFO L158 Benchmark]: Witness Printer took 37.79ms. Allocated memory is still 60.8MB. Free memory was 27.9MB in the beginning and 26.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:35:44,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory is still 33.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.49ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 30.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.97ms. Allocated memory is still 60.8MB. Free memory was 30.4MB in the beginning and 29.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.90ms. Allocated memory is still 60.8MB. Free memory was 29.0MB in the beginning and 27.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.70ms. Allocated memory is still 60.8MB. Free memory was 27.4MB in the beginning and 36.0MB in the end (delta: -8.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 998.88ms. Allocated memory is still 60.8MB. Free memory was 35.2MB in the beginning and 27.9MB in the end (delta: 7.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 37.79ms. Allocated memory is still 60.8MB. Free memory was 27.9MB in the beginning and 26.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int a, b; [L15] int x; [L16] a = 16 [L17] b = 30 [L18] x = __VERIFIER_nondet_int() [L20] COND TRUE x>=0 [L21] b = b|a VAL [a=16, b=30, x=2147483618] [L22] x+b VAL [a=16] - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 1 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-24 19:35:44,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)