./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/c.08.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/termination-restricted-15/c.08.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 e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:17:20,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:17:20,256 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-09 11:17:20,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:17:20,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:17:20,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:17:20,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:17:20,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:17:20,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:17:20,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:17:20,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:17:20,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:17:20,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:17:20,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:17:20,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:17:20,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:17:20,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:17:20,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:17:20,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:17:20,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:17:20,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:17:20,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:17:20,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:17:20,296 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:17:20,296 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:17:20,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:17:20,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:17:20,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:17:20,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:17:20,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:17:20,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:17:20,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:17:20,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:17:20,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:17:20,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:17:20,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:17:20,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:17:20,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:17:20,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:17:20,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:17:20,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:17:20,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b41eab3134232576005c452e063ce9699dbf2a52c4538827c4a32ddc3b6274 [2024-11-09 11:17:20,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:17:20,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:17:20,553 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:17:20,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:17:20,555 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:17:20,556 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/c.08.c [2024-11-09 11:17:21,898 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:17:22,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:17:22,039 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/c.08.c [2024-11-09 11:17:22,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48d91897/2bce91f41f5a4ca7879946a381e94ce6/FLAG8198f9646 [2024-11-09 11:17:22,065 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48d91897/2bce91f41f5a4ca7879946a381e94ce6 [2024-11-09 11:17:22,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:17:22,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:17:22,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:17:22,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:17:22,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:17:22,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a26ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22, skipping insertion in model container [2024-11-09 11:17:22,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,102 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:17:22,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:17:22,256 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:17:22,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:17:22,276 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:17:22,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22 WrapperNode [2024-11-09 11:17:22,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:17:22,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:17:22,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:17:22,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:17:22,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,296 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-09 11:17:22,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:17:22,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:17:22,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:17:22,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:17:22,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,305 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,309 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-09 11:17:22,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:17:22,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:17:22,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:17:22,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:17:22,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (1/1) ... [2024-11-09 11:17:22,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:17:22,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:17:22,366 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) [2024-11-09 11:17:22,369 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 [2024-11-09 11:17:22,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:17:22,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:17:22,476 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:17:22,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:17:22,560 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-09 11:17:22,562 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:17:22,574 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:17:22,578 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 11:17:22,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:17:22 BoogieIcfgContainer [2024-11-09 11:17:22,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:17:22,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:17:22,582 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:17:22,585 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:17:22,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:17:22" (1/3) ... [2024-11-09 11:17:22,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662e8d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:17:22, skipping insertion in model container [2024-11-09 11:17:22,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:17:22" (2/3) ... [2024-11-09 11:17:22,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662e8d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:17:22, skipping insertion in model container [2024-11-09 11:17:22,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:17:22" (3/3) ... [2024-11-09 11:17:22,589 INFO L112 eAbstractionObserver]: Analyzing ICFG c.08.c [2024-11-09 11:17:22,602 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:17:22,603 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 11:17:22,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:17:22,661 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;@47de27d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:17:22,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 11:17:22,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 11:17:22,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:17:22,671 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 11:17:22,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:17:22,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:17:22,678 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2024-11-09 11:17:22,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:17:22,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456638822] [2024-11-09 11:17:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:17:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:22,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:17:22,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456638822] [2024-11-09 11:17:22,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456638822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:17:22,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:17:22,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:17:22,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57501443] [2024-11-09 11:17:22,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:17:22,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:17:22,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:17:22,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:17:22,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:17:22,857 INFO L87 Difference]: Start difference. First operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 11:17:22,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:17:22,896 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-11-09 11:17:22,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:17:22,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-09 11:17:22,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:17:22,907 INFO L225 Difference]: With dead ends: 36 [2024-11-09 11:17:22,907 INFO L226 Difference]: Without dead ends: 14 [2024-11-09 11:17:22,909 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 [2024-11-09 11:17:22,913 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:17:22,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:17:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-09 11:17:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-11-09 11:17:22,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 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) [2024-11-09 11:17:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-11-09 11:17:22,939 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2024-11-09 11:17:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:17:22,940 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-11-09 11:17:22,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 11:17:22,940 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-09 11:17:22,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 11:17:22,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:17:22,941 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 11:17:22,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:17:22,942 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:17:22,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:17:22,943 INFO L85 PathProgramCache]: Analyzing trace with hash 28699849, now seen corresponding path program 1 times [2024-11-09 11:17:22,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:17:22,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209249054] [2024-11-09 11:17:22,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:22,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:17:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:22,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:17:22,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209249054] [2024-11-09 11:17:22,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209249054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:17:22,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:17:22,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:17:23,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569788125] [2024-11-09 11:17:23,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:17:23,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:17:23,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:17:23,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:17:23,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:17:23,002 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-09 11:17:23,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:17:23,018 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-11-09 11:17:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:17:23,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2024-11-09 11:17:23,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:17:23,019 INFO L225 Difference]: With dead ends: 14 [2024-11-09 11:17:23,019 INFO L226 Difference]: Without dead ends: 12 [2024-11-09 11:17:23,019 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 [2024-11-09 11:17:23,020 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:17:23,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:17:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-09 11:17:23,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-09 11:17:23,024 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) [2024-11-09 11:17:23,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2024-11-09 11:17:23,024 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2024-11-09 11:17:23,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:17:23,025 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2024-11-09 11:17:23,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2024-11-09 11:17:23,026 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2024-11-09 11:17:23,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 11:17:23,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:17:23,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:17:23,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 11:17:23,027 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:17:23,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:17:23,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1810752843, now seen corresponding path program 1 times [2024-11-09 11:17:23,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:17:23,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777818262] [2024-11-09 11:17:23,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:23,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:17:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:23,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:23,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:17:23,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777818262] [2024-11-09 11:17:23,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777818262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:17:23,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:17:23,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:17:23,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782064383] [2024-11-09 11:17:23,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:17:23,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:17:23,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:17:23,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:17:23,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:17:23,069 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:17:23,078 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2024-11-09 11:17:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:17:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 11:17:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:17:23,079 INFO L225 Difference]: With dead ends: 12 [2024-11-09 11:17:23,079 INFO L226 Difference]: Without dead ends: 11 [2024-11-09 11:17:23,079 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 [2024-11-09 11:17:23,080 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:17:23,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:17:23,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2024-11-09 11:17:23,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2024-11-09 11:17:23,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2024-11-09 11:17:23,084 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2024-11-09 11:17:23,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:17:23,085 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-11-09 11:17:23,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,086 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-11-09 11:17:23,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 11:17:23,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:17:23,086 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:17:23,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 11:17:23,087 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:17:23,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:17:23,088 INFO L85 PathProgramCache]: Analyzing trace with hash 298763343, now seen corresponding path program 1 times [2024-11-09 11:17:23,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:17:23,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520765726] [2024-11-09 11:17:23,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:23,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:17:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:23,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:23,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:17:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520765726] [2024-11-09 11:17:23,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520765726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:17:23,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:17:23,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:17:23,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696331352] [2024-11-09 11:17:23,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:17:23,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:17:23,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:17:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:17:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:17:23,150 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:17:23,163 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2024-11-09 11:17:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:17:23,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 11:17:23,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:17:23,164 INFO L225 Difference]: With dead ends: 17 [2024-11-09 11:17:23,164 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 11:17:23,165 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 [2024-11-09 11:17:23,165 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:17:23,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:17:23,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 11:17:23,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 11:17:23,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2024-11-09 11:17:23,170 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 8 [2024-11-09 11:17:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:17:23,170 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2024-11-09 11:17:23,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 11:17:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 11:17:23,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:17:23,171 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 11:17:23,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 11:17:23,172 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:17:23,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:17:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash -565707353, now seen corresponding path program 1 times [2024-11-09 11:17:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:17:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922593676] [2024-11-09 11:17:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:17:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:23,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:23,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:17:23,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922593676] [2024-11-09 11:17:23,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922593676] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:17:23,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386642281] [2024-11-09 11:17:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:23,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:17:23,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:17:23,262 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:17:23,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:17:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:23,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 11:17:23,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:17:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:23,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:17:23,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:17:23,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386642281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:17:23,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:17:23,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-09 11:17:23,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447159513] [2024-11-09 11:17:23,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:17:23,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:17:23,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:17:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:17:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:17:23,406 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:17:23,433 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2024-11-09 11:17:23,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 11:17:23,434 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 11:17:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:17:23,435 INFO L225 Difference]: With dead ends: 32 [2024-11-09 11:17:23,436 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 11:17:23,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:17:23,437 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:17:23,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:17:23,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 11:17:23,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 11:17:23,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2024-11-09 11:17:23,443 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 13 [2024-11-09 11:17:23,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:17:23,443 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2024-11-09 11:17:23,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,444 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2024-11-09 11:17:23,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-09 11:17:23,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:17:23,445 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2024-11-09 11:17:23,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 11:17:23,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:17:23,649 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:17:23,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:17:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash -899009969, now seen corresponding path program 2 times [2024-11-09 11:17:23,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:17:23,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124520875] [2024-11-09 11:17:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:17:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:17:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:17:23,742 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 11:17:23,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:17:23,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124520875] [2024-11-09 11:17:23,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124520875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:17:23,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118496379] [2024-11-09 11:17:23,743 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:17:23,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:17:23,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:17:23,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:17:23,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:17:23,779 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 11:17:23,779 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:17:23,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 11:17:23,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:17:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 11:17:23,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:17:23,861 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 11:17:23,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118496379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:17:23,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:17:23,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-09 11:17:23,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577177065] [2024-11-09 11:17:23,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:17:23,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:17:23,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:17:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:17:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:17:23,863 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:17:23,883 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2024-11-09 11:17:23,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:17:23,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-09 11:17:23,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:17:23,884 INFO L225 Difference]: With dead ends: 31 [2024-11-09 11:17:23,884 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 11:17:23,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:17:23,888 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:17:23,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:17:23,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 11:17:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 11:17:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 11:17:23,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2024-11-09 11:17:23,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:17:23,889 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 11:17:23,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:17:23,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 11:17:23,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 11:17:23,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-09 11:17:23,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-09 11:17:23,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-09 11:17:23,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-09 11:17:23,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-09 11:17:23,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-09 11:17:23,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 11:17:24,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 11:17:24,102 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-09 11:17:24,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 11:17:24,143 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 11:17:24,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:17:24 BoogieIcfgContainer [2024-11-09 11:17:24,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 11:17:24,154 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 11:17:24,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 11:17:24,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 11:17:24,155 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:17:22" (3/4) ... [2024-11-09 11:17:24,157 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 11:17:24,164 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 11:17:24,165 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 11:17:24,165 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 11:17:24,233 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 11:17:24,234 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 11:17:24,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 11:17:24,235 INFO L158 Benchmark]: Toolchain (without parser) took 2165.59ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 89.7MB in the beginning and 117.5MB in the end (delta: -27.8MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,235 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 161.5MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:17:24,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.96ms. Allocated memory is still 161.5MB. Free memory was 89.4MB in the beginning and 78.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.82ms. Allocated memory is still 161.5MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,235 INFO L158 Benchmark]: Boogie Preprocessor took 38.85ms. Allocated memory is still 161.5MB. Free memory was 76.8MB in the beginning and 132.3MB in the end (delta: -55.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,236 INFO L158 Benchmark]: RCFGBuilder took 242.82ms. Allocated memory is still 161.5MB. Free memory was 132.2MB in the beginning and 126.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,236 INFO L158 Benchmark]: TraceAbstraction took 1572.72ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 125.3MB in the beginning and 121.7MB in the end (delta: 3.6MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,236 INFO L158 Benchmark]: Witness Printer took 79.62ms. Allocated memory is still 195.0MB. Free memory was 121.7MB in the beginning and 117.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 11:17:24,237 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 161.5MB. Free memory is still 114.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.96ms. Allocated memory is still 161.5MB. Free memory was 89.4MB in the beginning and 78.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.82ms. Allocated memory is still 161.5MB. Free memory was 78.2MB in the beginning and 76.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.85ms. Allocated memory is still 161.5MB. Free memory was 76.8MB in the beginning and 132.3MB in the end (delta: -55.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * RCFGBuilder took 242.82ms. Allocated memory is still 161.5MB. Free memory was 132.2MB in the beginning and 126.5MB in the end (delta: 5.7MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1572.72ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 125.3MB in the beginning and 121.7MB in the end (delta: 3.6MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. * Witness Printer took 79.62ms. Allocated memory is still 195.0MB. Free memory was 121.7MB in the beginning and 117.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 33 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 42 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=5, InterpolantAutomatonStates: 22, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 106 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 379 SizeOfPredicates, 2 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 126/165 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: (i <= 2147483647) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((i <= 2147483647) && (0 <= j)) && (0 <= i)) RESULT: Ultimate proved your program to be correct! [2024-11-09 11:17:24,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE