./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-crafted/Collatz_bounded.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz_bounded.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 fb8f212b8045dc9be8518316cbae752ce6111a4a93244dc89f86b0ea27a978ef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:12:45,545 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:12:45,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-11 20:12:45,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:12:45,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:12:45,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:12:45,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:12:45,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:12:45,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:12:45,646 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:12:45,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:12:45,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:12:45,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:12:45,648 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:12:45,648 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:12:45,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:12:45,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:12:45,649 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:12:45,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:12:45,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:12:45,652 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:12:45,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:12:45,655 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:12:45,656 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:12:45,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:12:45,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:12:45,656 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:12:45,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:12:45,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:12:45,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:12:45,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:12:45,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:12:45,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:12:45,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:12:45,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:12:45,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:12:45,660 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:12:45,660 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:12:45,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:12:45,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:12:45,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:12:45,661 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb8f212b8045dc9be8518316cbae752ce6111a4a93244dc89f86b0ea27a978ef [2024-10-11 20:12:45,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:12:45,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:12:45,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:12:45,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:12:45,997 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:12:45,999 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz_bounded.c [2024-10-11 20:12:47,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:12:47,620 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:12:47,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz_bounded.c [2024-10-11 20:12:47,627 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d0d8cd205/5e513925a4564eccb70226cb2de35dd4/FLAG862685e5e [2024-10-11 20:12:48,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/d0d8cd205/5e513925a4564eccb70226cb2de35dd4 [2024-10-11 20:12:48,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:12:48,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:12:48,023 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:12:48,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:12:48,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:12:48,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc502a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48, skipping insertion in model container [2024-10-11 20:12:48,030 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:12:48,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:12:48,235 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:12:48,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:12:48,267 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:12:48,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48 WrapperNode [2024-10-11 20:12:48,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:12:48,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:12:48,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:12:48,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:12:48,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,298 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2024-10-11 20:12:48,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:12:48,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:12:48,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:12:48,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:12:48,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,322 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-11 20:12:48,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,331 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:12:48,333 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:12:48,334 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:12:48,334 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:12:48,335 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (1/1) ... [2024-10-11 20:12:48,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:12:48,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:48,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:12:48,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:12:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:12:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:12:48,475 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:12:48,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:12:48,608 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-10-11 20:12:48,609 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:12:48,658 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:12:48,662 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 20:12:48,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:12:48 BoogieIcfgContainer [2024-10-11 20:12:48,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:12:48,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:12:48,665 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:12:48,668 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:12:48,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:12:48" (1/3) ... [2024-10-11 20:12:48,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e961c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:12:48, skipping insertion in model container [2024-10-11 20:12:48,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:12:48" (2/3) ... [2024-10-11 20:12:48,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e961c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:12:48, skipping insertion in model container [2024-10-11 20:12:48,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:12:48" (3/3) ... [2024-10-11 20:12:48,672 INFO L112 eAbstractionObserver]: Analyzing ICFG Collatz_bounded.c [2024-10-11 20:12:48,690 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:12:48,691 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-11 20:12:48,756 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:12:48,764 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;@323681c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:12:48,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-11 20:12:48,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 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) [2024-10-11 20:12:48,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 20:12:48,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:48,776 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 20:12:48,777 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)] === [2024-10-11 20:12:48,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash 67641555, now seen corresponding path program 1 times [2024-10-11 20:12:48,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:48,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661557071] [2024-10-11 20:12:48,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:48,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:49,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661557071] [2024-10-11 20:12:49,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661557071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:12:49,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:12:49,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 20:12:49,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514548058] [2024-10-11 20:12:49,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:12:49,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:12:49,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:12:49,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:12:49,064 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.8333333333333333) internal successors, (22), 18 states have internal predecessors, (22), 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 2.5) 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) [2024-10-11 20:12:49,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:49,128 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2024-10-11 20:12:49,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:12:49,131 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 [2024-10-11 20:12:49,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:49,137 INFO L225 Difference]: With dead ends: 23 [2024-10-11 20:12:49,137 INFO L226 Difference]: Without dead ends: 14 [2024-10-11 20:12:49,139 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 20:12:49,142 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:49,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:12:49,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-11 20:12:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-10-11 20:12:49,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:49,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2024-10-11 20:12:49,169 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2024-10-11 20:12:49,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:49,169 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2024-10-11 20:12:49,169 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) [2024-10-11 20:12:49,170 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-10-11 20:12:49,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 20:12:49,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:49,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 20:12:49,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:12:49,170 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)] === [2024-10-11 20:12:49,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:49,171 INFO L85 PathProgramCache]: Analyzing trace with hash 2096888258, now seen corresponding path program 1 times [2024-10-11 20:12:49,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:49,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742182922] [2024-10-11 20:12:49,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:49,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:49,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742182922] [2024-10-11 20:12:49,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742182922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:12:49,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:12:49,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:12:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279988413] [2024-10-11 20:12:49,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:12:49,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:12:49,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:12:49,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:12:49,331 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2024-10-11 20:12:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:49,461 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2024-10-11 20:12:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:12:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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 [2024-10-11 20:12:49,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:49,463 INFO L225 Difference]: With dead ends: 25 [2024-10-11 20:12:49,463 INFO L226 Difference]: Without dead ends: 22 [2024-10-11 20:12:49,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-11 20:12:49,466 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:49,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:49,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-10-11 20:12:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-10-11 20:12:49,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 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) [2024-10-11 20:12:49,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-10-11 20:12:49,479 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6 [2024-10-11 20:12:49,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:49,480 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-10-11 20:12:49,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2024-10-11 20:12:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-10-11 20:12:49,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-10-11 20:12:49,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:49,483 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:12:49,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:12:49,484 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:12:49,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:49,484 INFO L85 PathProgramCache]: Analyzing trace with hash 750926095, now seen corresponding path program 1 times [2024-10-11 20:12:49,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:49,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411959990] [2024-10-11 20:12:49,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:49,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:49,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:49,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:49,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411959990] [2024-10-11 20:12:49,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411959990] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:49,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509086159] [2024-10-11 20:12:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:49,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:49,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:49,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:49,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:12:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:49,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:12:49,698 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:49,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509086159] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:49,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:49,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 3] total 7 [2024-10-11 20:12:49,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339472902] [2024-10-11 20:12:49,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:49,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:12:49,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:49,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:12:49,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2024-10-11 20:12:49,935 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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) [2024-10-11 20:12:50,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:50,076 INFO L93 Difference]: Finished difference Result 39 states and 46 transitions. [2024-10-11 20:12:50,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 20:12:50,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-10-11 20:12:50,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:50,079 INFO L225 Difference]: With dead ends: 39 [2024-10-11 20:12:50,080 INFO L226 Difference]: Without dead ends: 36 [2024-10-11 20:12:50,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=48, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:12:50,082 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:50,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:50,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-10-11 20:12:50,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2024-10-11 20:12:50,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 20:12:50,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2024-10-11 20:12:50,095 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 12 [2024-10-11 20:12:50,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:50,096 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2024-10-11 20:12:50,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 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) [2024-10-11 20:12:50,096 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2024-10-11 20:12:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 20:12:50,098 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:50,098 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1] [2024-10-11 20:12:50,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 20:12:50,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:50,299 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)] === [2024-10-11 20:12:50,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:50,300 INFO L85 PathProgramCache]: Analyzing trace with hash 31269346, now seen corresponding path program 1 times [2024-10-11 20:12:50,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:50,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440203471] [2024-10-11 20:12:50,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:50,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440203471] [2024-10-11 20:12:50,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440203471] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:50,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649929577] [2024-10-11 20:12:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:50,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:50,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:50,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:50,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:12:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:50,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 20:12:50,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:50,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:50,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649929577] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:50,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:50,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-11 20:12:50,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287921243] [2024-10-11 20:12:50,536 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:50,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:12:50,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:50,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:12:50,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-11 20:12:50,538 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-10-11 20:12:50,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:50,675 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2024-10-11 20:12:50,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:12:50,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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 18 [2024-10-11 20:12:50,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:50,677 INFO L225 Difference]: With dead ends: 59 [2024-10-11 20:12:50,677 INFO L226 Difference]: Without dead ends: 57 [2024-10-11 20:12:50,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-10-11 20:12:50,678 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:50,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:50,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-11 20:12:50,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-10-11 20:12:50,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 56 states have internal predecessors, (64), 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) [2024-10-11 20:12:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2024-10-11 20:12:50,696 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 18 [2024-10-11 20:12:50,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:50,696 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2024-10-11 20:12:50,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 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) [2024-10-11 20:12:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2024-10-11 20:12:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 20:12:50,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:50,700 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 1, 1, 1] [2024-10-11 20:12:50,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:12:50,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:50,901 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)] === [2024-10-11 20:12:50,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:50,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1359765142, now seen corresponding path program 2 times [2024-10-11 20:12:50,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:50,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324988546] [2024-10-11 20:12:50,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:50,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:51,109 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:51,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:51,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324988546] [2024-10-11 20:12:51,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324988546] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:51,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660469921] [2024-10-11 20:12:51,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:12:51,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:51,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:51,112 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:51,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:12:51,152 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:12:51,152 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:12:51,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 20:12:51,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:51,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:51,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660469921] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:51,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:51,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-10-11 20:12:51,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195552205] [2024-10-11 20:12:51,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:51,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-11 20:12:51,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:51,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-11 20:12:51,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:12:51,346 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-11 20:12:51,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:51,568 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2024-10-11 20:12:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-11 20:12:51,568 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 16 states have internal predecessors, (83), 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 42 [2024-10-11 20:12:51,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:51,570 INFO L225 Difference]: With dead ends: 122 [2024-10-11 20:12:51,570 INFO L226 Difference]: Without dead ends: 121 [2024-10-11 20:12:51,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2024-10-11 20:12:51,571 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 64 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:51,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 2 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:12:51,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-10-11 20:12:51,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 107. [2024-10-11 20:12:51,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.150943396226415) internal successors, (122), 106 states have internal predecessors, (122), 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) [2024-10-11 20:12:51,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2024-10-11 20:12:51,583 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 42 [2024-10-11 20:12:51,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:51,584 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2024-10-11 20:12:51,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.533333333333333) internal successors, (83), 16 states have internal predecessors, (83), 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) [2024-10-11 20:12:51,584 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2024-10-11 20:12:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 20:12:51,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:51,586 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 1, 1, 1] [2024-10-11 20:12:51,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:12:51,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:51,786 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)] === [2024-10-11 20:12:51,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:51,787 INFO L85 PathProgramCache]: Analyzing trace with hash -208696720, now seen corresponding path program 3 times [2024-10-11 20:12:51,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:51,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968003989] [2024-10-11 20:12:51,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:51,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-11 20:12:52,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:52,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968003989] [2024-10-11 20:12:52,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968003989] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:52,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562914950] [2024-10-11 20:12:52,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:12:52,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:52,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:52,195 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:52,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:12:52,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 20:12:52,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:12:52,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:12:52,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:52,339 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2024-10-11 20:12:52,339 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:12:52,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562914950] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:12:52,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:12:52,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-11 20:12:52,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284939946] [2024-10-11 20:12:52,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:12:52,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:12:52,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:52,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:12:52,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:12:52,341 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2024-10-11 20:12:52,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:52,412 INFO L93 Difference]: Finished difference Result 210 states and 242 transitions. [2024-10-11 20:12:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:12:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) Word has length 54 [2024-10-11 20:12:52,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:52,414 INFO L225 Difference]: With dead ends: 210 [2024-10-11 20:12:52,414 INFO L226 Difference]: Without dead ends: 117 [2024-10-11 20:12:52,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:12:52,418 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:52,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:12:52,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-10-11 20:12:52,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 99. [2024-10-11 20:12:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.1122448979591837) internal successors, (109), 98 states have internal predecessors, (109), 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) [2024-10-11 20:12:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 109 transitions. [2024-10-11 20:12:52,439 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 109 transitions. Word has length 54 [2024-10-11 20:12:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:52,441 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 109 transitions. [2024-10-11 20:12:52,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 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) [2024-10-11 20:12:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 109 transitions. [2024-10-11 20:12:52,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 20:12:52,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:52,444 INFO L215 NwaCegarLoop]: trace histogram [19, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1] [2024-10-11 20:12:52,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 20:12:52,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 20:12:52,645 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:12:52,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:52,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1612879926, now seen corresponding path program 1 times [2024-10-11 20:12:52,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:52,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208714136] [2024-10-11 20:12:52,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:52,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:54,703 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 17 proven. 559 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:54,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:12:54,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208714136] [2024-10-11 20:12:54,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208714136] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:12:54,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237564108] [2024-10-11 20:12:54,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:54,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:54,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:12:54,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:12:54,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:12:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:12:54,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-10-11 20:12:54,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:12:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 17 proven. 559 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:55,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:12:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 34 proven. 542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:12:56,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237564108] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:12:56,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:12:56,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 29, 20] total 80 [2024-10-11 20:12:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794094777] [2024-10-11 20:12:56,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:12:56,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2024-10-11 20:12:56,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:12:56,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2024-10-11 20:12:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2667, Invalid=3813, Unknown=0, NotChecked=0, Total=6480 [2024-10-11 20:12:56,336 INFO L87 Difference]: Start difference. First operand 99 states and 109 transitions. Second operand has 81 states, 80 states have (on average 3.35) internal successors, (268), 81 states have internal predecessors, (268), 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) [2024-10-11 20:12:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:12:57,644 INFO L93 Difference]: Finished difference Result 885 states and 1009 transitions. [2024-10-11 20:12:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2024-10-11 20:12:57,644 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 3.35) internal successors, (268), 81 states have internal predecessors, (268), 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 96 [2024-10-11 20:12:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:12:57,651 INFO L225 Difference]: With dead ends: 885 [2024-10-11 20:12:57,652 INFO L226 Difference]: Without dead ends: 884 [2024-10-11 20:12:57,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 146 SyntacticMatches, 3 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5563 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=4423, Invalid=6707, Unknown=0, NotChecked=0, Total=11130 [2024-10-11 20:12:57,659 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 20:12:57,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 2 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 20:12:57,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-10-11 20:12:57,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 257. [2024-10-11 20:12:57,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 256 states have (on average 1.1328125) internal successors, (290), 256 states have internal predecessors, (290), 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) [2024-10-11 20:12:57,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 290 transitions. [2024-10-11 20:12:57,712 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 290 transitions. Word has length 96 [2024-10-11 20:12:57,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:12:57,712 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 290 transitions. [2024-10-11 20:12:57,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 3.35) internal successors, (268), 81 states have internal predecessors, (268), 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) [2024-10-11 20:12:57,713 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 290 transitions. [2024-10-11 20:12:57,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-11 20:12:57,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:12:57,725 INFO L215 NwaCegarLoop]: trace histogram [41, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1] [2024-10-11 20:12:57,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:12:57,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:12:57,926 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:12:57,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:12:57,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1400574480, now seen corresponding path program 2 times [2024-10-11 20:12:57,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:12:57,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678087860] [2024-10-11 20:12:57,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:12:57,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:12:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:13:04,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 39 proven. 2781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:04,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:13:04,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678087860] [2024-10-11 20:13:04,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678087860] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:13:04,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671127067] [2024-10-11 20:13:04,427 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:13:04,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:13:04,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:13:04,429 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:13:04,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:13:04,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:13:04,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:13:04,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-10-11 20:13:04,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:13:06,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 39 proven. 2781 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:06,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:13:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2820 backedges. 78 proven. 2742 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:13:07,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671127067] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:13:07,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:13:07,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 62, 42] total 179 [2024-10-11 20:13:07,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501778695] [2024-10-11 20:13:07,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:13:07,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 180 states [2024-10-11 20:13:07,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:13:07,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 180 interpolants. [2024-10-11 20:13:07,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12087, Invalid=20133, Unknown=0, NotChecked=0, Total=32220 [2024-10-11 20:13:07,977 INFO L87 Difference]: Start difference. First operand 257 states and 290 transitions. Second operand has 180 states, 179 states have (on average 3.340782122905028) internal successors, (598), 180 states have internal predecessors, (598), 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) [2024-10-11 20:13:13,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:13:13,854 INFO L93 Difference]: Finished difference Result 6157 states and 6965 transitions. [2024-10-11 20:13:13,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-10-11 20:13:13,855 INFO L78 Accepts]: Start accepts. Automaton has has 180 states, 179 states have (on average 3.340782122905028) internal successors, (598), 180 states have internal predecessors, (598), 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 206 [2024-10-11 20:13:13,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:13:13,878 INFO L225 Difference]: With dead ends: 6157 [2024-10-11 20:13:13,878 INFO L226 Difference]: Without dead ends: 6156 [2024-10-11 20:13:13,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 309 SyntacticMatches, 5 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45252 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=29616, Invalid=57114, Unknown=0, NotChecked=0, Total=86730 [2024-10-11 20:13:13,892 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 592 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1514 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:13:13,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 2 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1514 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 20:13:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6156 states. [2024-10-11 20:13:13,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6156 to 483. [2024-10-11 20:13:13,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.1224066390041494) internal successors, (541), 482 states have internal predecessors, (541), 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) [2024-10-11 20:13:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 541 transitions. [2024-10-11 20:13:13,985 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 541 transitions. Word has length 206 [2024-10-11 20:13:13,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:13:13,985 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 541 transitions. [2024-10-11 20:13:13,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 180 states, 179 states have (on average 3.340782122905028) internal successors, (598), 180 states have internal predecessors, (598), 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) [2024-10-11 20:13:13,986 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 541 transitions. [2024-10-11 20:13:13,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-10-11 20:13:13,989 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:13:13,989 INFO L215 NwaCegarLoop]: trace histogram [45, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2024-10-11 20:13:14,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 20:13:14,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 20:13:14,193 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-10-11 20:13:14,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:13:14,193 INFO L85 PathProgramCache]: Analyzing trace with hash 2064720340, now seen corresponding path program 3 times [2024-10-11 20:13:14,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:13:14,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240701646] [2024-10-11 20:13:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:13:14,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:13:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:14:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 66 proven. 3340 refuted. 4 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:14:06,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:14:06,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240701646] [2024-10-11 20:14:06,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240701646] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:14:06,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260679444] [2024-10-11 20:14:06,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:14:06,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:14:06,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:14:06,283 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:14:06,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process