./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:24:02,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:24:02,598 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:24:02,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:24:02,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:24:02,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:24:02,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:24:02,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:24:02,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:24:02,644 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:24:02,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:24:02,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:24:02,645 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:24:02,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:24:02,647 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:24:02,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:24:02,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:24:02,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:24:02,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:24:02,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:24:02,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:24:02,649 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:24:02,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:24:02,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:24:02,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:24:02,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:24:02,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:24:02,650 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:24:02,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:24:02,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:24:02,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:24:02,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:24:02,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:24:02,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:24:02,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:24:02,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:24:02,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:24:02,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:24:02,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:24:02,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:24:02,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:24:02,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:24:02,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:24:02,653 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:24:02,653 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d100da65e2ae9d5c43d48b49216d155078158e341858baee0b08b697e15c8e [2024-10-14 20:24:02,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:24:02,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:24:02,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:24:02,863 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:24:02,864 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:24:02,865 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i [2024-10-14 20:24:04,067 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:24:04,212 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:24:04,214 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum01_bug02.i [2024-10-14 20:24:04,225 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b17ccd9/d935056798254839841afe49264c229a/FLAG7f34448ee [2024-10-14 20:24:04,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06b17ccd9/d935056798254839841afe49264c229a [2024-10-14 20:24:04,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:24:04,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:24:04,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:24:04,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:24:04,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:24:04,248 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79b24464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04, skipping insertion in model container [2024-10-14 20:24:04,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:24:04,403 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:24:04,413 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:24:04,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:24:04,440 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:24:04,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04 WrapperNode [2024-10-14 20:24:04,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:24:04,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:24:04,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:24:04,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:24:04,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,469 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 47 [2024-10-14 20:24:04,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:24:04,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:24:04,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:24:04,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:24:04,478 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,479 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,486 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 20:24:04,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,487 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,491 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:24:04,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:24:04,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:24:04,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:24:04,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (1/1) ... [2024-10-14 20:24:04,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:24:04,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:04,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:24:04,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:24:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:24:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:24:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:24:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:24:04,633 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:24:04,635 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:24:04,776 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-10-14 20:24:04,794 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:24:04,824 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:24:04,825 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:24:04,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:24:04 BoogieIcfgContainer [2024-10-14 20:24:04,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:24:04,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:24:04,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:24:04,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:24:04,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:24:04" (1/3) ... [2024-10-14 20:24:04,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f84a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:24:04, skipping insertion in model container [2024-10-14 20:24:04,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:24:04" (2/3) ... [2024-10-14 20:24:04,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f84a31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:24:04, skipping insertion in model container [2024-10-14 20:24:04,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:24:04" (3/3) ... [2024-10-14 20:24:04,842 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i [2024-10-14 20:24:04,856 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:24:04,856 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-14 20:24:04,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:24:04,912 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;@4bb8fd62, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:24:04,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 20:24:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 states have internal predecessors, (32), 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) [2024-10-14 20:24:04,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-14 20:24:04,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:04,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-14 20:24:04,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:04,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2867881, now seen corresponding path program 1 times [2024-10-14 20:24:04,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:04,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783005617] [2024-10-14 20:24:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783005617] [2024-10-14 20:24:05,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783005617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:24:05,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579076797] [2024-10-14 20:24:05,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:24:05,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:24:05,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:24:05,066 INFO L87 Difference]: Start difference. First operand has 27 states, 18 states have (on average 1.7777777777777777) internal successors, (32), 26 states have internal predecessors, (32), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,086 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2024-10-14 20:24:05,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:24:05,088 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-14 20:24:05,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,093 INFO L225 Difference]: With dead ends: 36 [2024-10-14 20:24:05,093 INFO L226 Difference]: Without dead ends: 21 [2024-10-14 20:24:05,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:24:05,097 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-10-14 20:24:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-10-14 20:24:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 20 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) [2024-10-14 20:24:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-10-14 20:24:05,119 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 4 [2024-10-14 20:24:05,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,120 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-10-14 20:24:05,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-10-14 20:24:05,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-14 20:24:05,120 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,120 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-14 20:24:05,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:24:05,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2867106, now seen corresponding path program 1 times [2024-10-14 20:24:05,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541384675] [2024-10-14 20:24:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541384675] [2024-10-14 20:24:05,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541384675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 20:24:05,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815665999] [2024-10-14 20:24:05,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:24:05,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:24:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:24:05,218 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,230 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2024-10-14 20:24:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:24:05,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-10-14 20:24:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,231 INFO L225 Difference]: With dead ends: 21 [2024-10-14 20:24:05,231 INFO L226 Difference]: Without dead ends: 20 [2024-10-14 20:24:05,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:24:05,232 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-14 20:24:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-14 20:24:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 19 states have internal predecessors, (21), 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) [2024-10-14 20:24:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-10-14 20:24:05,235 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 4 [2024-10-14 20:24:05,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,236 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-10-14 20:24:05,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-10-14 20:24:05,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:24:05,236 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,236 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:24:05,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 20:24:05,237 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,239 INFO L85 PathProgramCache]: Analyzing trace with hash 88880359, now seen corresponding path program 1 times [2024-10-14 20:24:05,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068238917] [2024-10-14 20:24:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068238917] [2024-10-14 20:24:05,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068238917] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:24:05,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146849803] [2024-10-14 20:24:05,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:24:05,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:24:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,301 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,339 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2024-10-14 20:24:05,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:24:05,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:24:05,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,341 INFO L225 Difference]: With dead ends: 34 [2024-10-14 20:24:05,341 INFO L226 Difference]: Without dead ends: 31 [2024-10-14 20:24:05,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,343 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 38 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-10-14 20:24:05,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 21. [2024-10-14 20:24:05,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 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) [2024-10-14 20:24:05,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2024-10-14 20:24:05,350 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 5 [2024-10-14 20:24:05,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,350 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2024-10-14 20:24:05,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,350 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2024-10-14 20:24:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:24:05,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,351 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:24:05,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 20:24:05,351 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,351 INFO L85 PathProgramCache]: Analyzing trace with hash 88881545, now seen corresponding path program 1 times [2024-10-14 20:24:05,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934547134] [2024-10-14 20:24:05,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934547134] [2024-10-14 20:24:05,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934547134] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 20:24:05,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504991272] [2024-10-14 20:24:05,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:24:05,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:24:05,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:24:05,400 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,418 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2024-10-14 20:24:05,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:24:05,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:24:05,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,420 INFO L225 Difference]: With dead ends: 39 [2024-10-14 20:24:05,420 INFO L226 Difference]: Without dead ends: 37 [2024-10-14 20:24:05,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:24:05,422 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-10-14 20:24:05,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2024-10-14 20:24:05,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.608695652173913) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2024-10-14 20:24:05,428 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 5 [2024-10-14 20:24:05,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,428 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2024-10-14 20:24:05,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-10-14 20:24:05,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:24:05,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:24:05,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:24:05,429 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1539633391, now seen corresponding path program 1 times [2024-10-14 20:24:05,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281173984] [2024-10-14 20:24:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281173984] [2024-10-14 20:24:05,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281173984] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:24:05,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970893184] [2024-10-14 20:24:05,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:24:05,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:24:05,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,505 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2024-10-14 20:24:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,527 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2024-10-14 20:24:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:24:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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 [2024-10-14 20:24:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,529 INFO L225 Difference]: With dead ends: 52 [2024-10-14 20:24:05,529 INFO L226 Difference]: Without dead ends: 25 [2024-10-14 20:24:05,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,530 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 31 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-14 20:24:05,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2024-10-14 20:24:05,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 23 states have internal predecessors, (25), 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) [2024-10-14 20:24:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2024-10-14 20:24:05,537 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 6 [2024-10-14 20:24:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,538 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2024-10-14 20:24:05,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 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) [2024-10-14 20:24:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2024-10-14 20:24:05,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 20:24:05,539 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,539 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:05,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 20:24:05,539 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash -2124662771, now seen corresponding path program 1 times [2024-10-14 20:24:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537715860] [2024-10-14 20:24:05,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537715860] [2024-10-14 20:24:05,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537715860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:24:05,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016708440] [2024-10-14 20:24:05,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:24:05,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:24:05,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,583 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,600 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2024-10-14 20:24:05,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:24:05,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-14 20:24:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,601 INFO L225 Difference]: With dead ends: 28 [2024-10-14 20:24:05,601 INFO L226 Difference]: Without dead ends: 27 [2024-10-14 20:24:05,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,607 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-14 20:24:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2024-10-14 20:24:05,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 25 states have internal predecessors, (27), 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) [2024-10-14 20:24:05,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2024-10-14 20:24:05,612 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 8 [2024-10-14 20:24:05,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,613 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2024-10-14 20:24:05,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,613 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2024-10-14 20:24:05,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-14 20:24:05,613 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,613 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:05,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 20:24:05,613 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1440036401, now seen corresponding path program 1 times [2024-10-14 20:24:05,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801921295] [2024-10-14 20:24:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801921295] [2024-10-14 20:24:05,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801921295] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:24:05,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584002738] [2024-10-14 20:24:05,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:24:05,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:24:05,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,650 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,670 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2024-10-14 20:24:05,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:24:05,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-14 20:24:05,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,670 INFO L225 Difference]: With dead ends: 26 [2024-10-14 20:24:05,670 INFO L226 Difference]: Without dead ends: 25 [2024-10-14 20:24:05,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,671 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 26 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-10-14 20:24:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-14 20:24:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.368421052631579) internal successors, (26), 24 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) [2024-10-14 20:24:05,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-10-14 20:24:05,674 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 9 [2024-10-14 20:24:05,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,674 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-10-14 20:24:05,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,675 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-10-14 20:24:05,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-14 20:24:05,675 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:05,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 20:24:05,675 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1691454353, now seen corresponding path program 1 times [2024-10-14 20:24:05,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881568976] [2024-10-14 20:24:05,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881568976] [2024-10-14 20:24:05,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881568976] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:05,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:24:05,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:24:05,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257627433] [2024-10-14 20:24:05,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:05,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:24:05,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:05,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:24:05,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,732 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:05,766 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2024-10-14 20:24:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:24:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-10-14 20:24:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:05,767 INFO L225 Difference]: With dead ends: 30 [2024-10-14 20:24:05,767 INFO L226 Difference]: Without dead ends: 28 [2024-10-14 20:24:05,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:24:05,768 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:05,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:05,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-14 20:24:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-14 20:24:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 27 states have internal predecessors, (29), 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) [2024-10-14 20:24:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-10-14 20:24:05,772 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 10 [2024-10-14 20:24:05,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:05,773 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-10-14 20:24:05,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-10-14 20:24:05,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:24:05,773 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:05,773 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:05,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 20:24:05,774 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:05,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:05,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1123070022, now seen corresponding path program 1 times [2024-10-14 20:24:05,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:05,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412015788] [2024-10-14 20:24:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:05,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412015788] [2024-10-14 20:24:05,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412015788] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:05,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908725545] [2024-10-14 20:24:05,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:05,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:05,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:05,825 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:05,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:24:05,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:05,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:24:05,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:05,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:06,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908725545] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:06,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:06,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-14 20:24:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496655496] [2024-10-14 20:24:06,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:06,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:24:06,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:24:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:24:06,021 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:06,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:06,113 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-10-14 20:24:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:24:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-14 20:24:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:06,115 INFO L225 Difference]: With dead ends: 40 [2024-10-14 20:24:06,116 INFO L226 Difference]: Without dead ends: 35 [2024-10-14 20:24:06,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:24:06,117 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 62 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:06,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 35 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:06,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-10-14 20:24:06,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 25. [2024-10-14 20:24:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 24 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) [2024-10-14 20:24:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2024-10-14 20:24:06,120 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2024-10-14 20:24:06,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:06,120 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2024-10-14 20:24:06,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2024-10-14 20:24:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:24:06,122 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:06,122 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:06,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:24:06,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:06,327 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:06,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:06,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1123068836, now seen corresponding path program 1 times [2024-10-14 20:24:06,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:06,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860398600] [2024-10-14 20:24:06,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:06,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:06,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:06,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:06,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860398600] [2024-10-14 20:24:06,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860398600] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:06,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946787674] [2024-10-14 20:24:06,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:06,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:06,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:06,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:06,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:24:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:06,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:24:06,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:06,420 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:24:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946787674] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:06,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:24:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2024-10-14 20:24:06,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894087506] [2024-10-14 20:24:06,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:06,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:24:06,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:06,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:24:06,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:24:06,421 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-10-14 20:24:06,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:06,430 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2024-10-14 20:24:06,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:24:06,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) Word has length 14 [2024-10-14 20:24:06,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:06,431 INFO L225 Difference]: With dead ends: 25 [2024-10-14 20:24:06,431 INFO L226 Difference]: Without dead ends: 24 [2024-10-14 20:24:06,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:24:06,432 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:06,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:06,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-10-14 20:24:06,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-10-14 20:24:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 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) [2024-10-14 20:24:06,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2024-10-14 20:24:06,434 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 14 [2024-10-14 20:24:06,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:06,434 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2024-10-14 20:24:06,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 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) [2024-10-14 20:24:06,435 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2024-10-14 20:24:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 20:24:06,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:06,435 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:06,447 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:24:06,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 20:24:06,640 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:06,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:06,641 INFO L85 PathProgramCache]: Analyzing trace with hash -455395496, now seen corresponding path program 1 times [2024-10-14 20:24:06,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:06,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598384595] [2024-10-14 20:24:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:06,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:06,666 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:06,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598384595] [2024-10-14 20:24:06,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598384595] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:06,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920965631] [2024-10-14 20:24:06,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:06,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:06,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:06,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:06,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:24:06,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:06,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:24:06,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:06,729 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:06,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920965631] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:06,764 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:06,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2024-10-14 20:24:06,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71803998] [2024-10-14 20:24:06,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:06,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:24:06,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:06,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:24:06,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:24:06,766 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:06,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:06,794 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2024-10-14 20:24:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:24:06,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-14 20:24:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:06,795 INFO L225 Difference]: With dead ends: 61 [2024-10-14 20:24:06,795 INFO L226 Difference]: Without dead ends: 60 [2024-10-14 20:24:06,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:24:06,796 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:06,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 52 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:06,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-14 20:24:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2024-10-14 20:24:06,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 50 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) [2024-10-14 20:24:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2024-10-14 20:24:06,804 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 15 [2024-10-14 20:24:06,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:06,804 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2024-10-14 20:24:06,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:06,804 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2024-10-14 20:24:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-14 20:24:06,804 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:06,804 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:24:06,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 20:24:07,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:07,005 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:07,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:07,006 INFO L85 PathProgramCache]: Analyzing trace with hash -455389538, now seen corresponding path program 1 times [2024-10-14 20:24:07,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:07,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509492641] [2024-10-14 20:24:07,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:07,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:07,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:07,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:07,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509492641] [2024-10-14 20:24:07,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509492641] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:07,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [870595045] [2024-10-14 20:24:07,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:07,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:07,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:07,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:07,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:24:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:07,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:24:07,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:07,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:07,166 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:07,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:07,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [870595045] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:07,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:07,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-10-14 20:24:07,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533480476] [2024-10-14 20:24:07,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:07,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 20:24:07,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:07,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 20:24:07,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-10-14 20:24:07,227 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 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) [2024-10-14 20:24:07,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:07,326 INFO L93 Difference]: Finished difference Result 90 states and 111 transitions. [2024-10-14 20:24:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:24:07,328 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 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 15 [2024-10-14 20:24:07,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:07,328 INFO L225 Difference]: With dead ends: 90 [2024-10-14 20:24:07,328 INFO L226 Difference]: Without dead ends: 50 [2024-10-14 20:24:07,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-10-14 20:24:07,329 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:07,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 54 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:07,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-14 20:24:07,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2024-10-14 20:24:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2619047619047619) internal successors, (53), 45 states have internal predecessors, (53), 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) [2024-10-14 20:24:07,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-10-14 20:24:07,336 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 15 [2024-10-14 20:24:07,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:07,336 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-10-14 20:24:07,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 14 states have internal predecessors, (42), 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) [2024-10-14 20:24:07,336 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-10-14 20:24:07,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-14 20:24:07,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:07,337 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-14 20:24:07,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:24:07,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:07,537 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:07,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:07,538 INFO L85 PathProgramCache]: Analyzing trace with hash 190457212, now seen corresponding path program 1 times [2024-10-14 20:24:07,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:07,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493753799] [2024-10-14 20:24:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:07,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:07,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:07,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493753799] [2024-10-14 20:24:07,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493753799] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:07,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432180164] [2024-10-14 20:24:07,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:07,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:07,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:07,599 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:07,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:24:07,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:07,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:24:07,632 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:07,661 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:24:07,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432180164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:07,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:24:07,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-14 20:24:07,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001293217] [2024-10-14 20:24:07,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:07,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:24:07,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:07,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:24:07,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:24:07,662 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:07,684 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2024-10-14 20:24:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:24:07,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-14 20:24:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:07,685 INFO L225 Difference]: With dead ends: 46 [2024-10-14 20:24:07,685 INFO L226 Difference]: Without dead ends: 45 [2024-10-14 20:24:07,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:24:07,686 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:07,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 26 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-10-14 20:24:07,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-10-14 20:24:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 44 states have internal predecessors, (50), 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) [2024-10-14 20:24:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2024-10-14 20:24:07,690 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 19 [2024-10-14 20:24:07,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:07,690 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2024-10-14 20:24:07,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:24:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2024-10-14 20:24:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 20:24:07,692 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:07,692 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-14 20:24:07,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 20:24:07,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-14 20:24:07,898 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:07,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:07,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1609206342, now seen corresponding path program 1 times [2024-10-14 20:24:07,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:07,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736650571] [2024-10-14 20:24:07,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:07,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736650571] [2024-10-14 20:24:07,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736650571] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534251059] [2024-10-14 20:24:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:07,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:07,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:07,950 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:07,950 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:24:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:07,981 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:24:07,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:08,017 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:08,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534251059] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:08,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:08,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-14 20:24:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547449198] [2024-10-14 20:24:08,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:08,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:24:08,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:24:08,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:24:08,062 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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) [2024-10-14 20:24:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:08,110 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2024-10-14 20:24:08,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:24:08,110 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-10-14 20:24:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:08,111 INFO L225 Difference]: With dead ends: 67 [2024-10-14 20:24:08,111 INFO L226 Difference]: Without dead ends: 66 [2024-10-14 20:24:08,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:24:08,111 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 4 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:08,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:08,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-14 20:24:08,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2024-10-14 20:24:08,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 61 states have (on average 1.180327868852459) internal successors, (72), 63 states have internal predecessors, (72), 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) [2024-10-14 20:24:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 72 transitions. [2024-10-14 20:24:08,117 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 72 transitions. Word has length 20 [2024-10-14 20:24:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:08,118 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 72 transitions. [2024-10-14 20:24:08,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.454545454545454) internal successors, (49), 12 states have internal predecessors, (49), 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) [2024-10-14 20:24:08,118 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2024-10-14 20:24:08,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-14 20:24:08,119 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:08,119 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1] [2024-10-14 20:24:08,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 20:24:08,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:08,320 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:08,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:08,321 INFO L85 PathProgramCache]: Analyzing trace with hash 718618285, now seen corresponding path program 1 times [2024-10-14 20:24:08,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:08,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163299618] [2024-10-14 20:24:08,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:08,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:08,394 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:08,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:08,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163299618] [2024-10-14 20:24:08,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163299618] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:08,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646624118] [2024-10-14 20:24:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:08,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:08,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:08,397 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:08,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:24:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:08,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:24:08,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:08,503 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:08,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646624118] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:08,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:08,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 20 [2024-10-14 20:24:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398817612] [2024-10-14 20:24:08,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:08,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-14 20:24:08,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:08,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-14 20:24:08,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-10-14 20:24:08,592 INFO L87 Difference]: Start difference. First operand 64 states and 72 transitions. Second operand has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 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) [2024-10-14 20:24:08,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:08,872 INFO L93 Difference]: Finished difference Result 109 states and 131 transitions. [2024-10-14 20:24:08,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-10-14 20:24:08,872 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2024-10-14 20:24:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:08,874 INFO L225 Difference]: With dead ends: 109 [2024-10-14 20:24:08,874 INFO L226 Difference]: Without dead ends: 108 [2024-10-14 20:24:08,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=259, Invalid=1381, Unknown=0, NotChecked=0, Total=1640 [2024-10-14 20:24:08,876 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 59 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:08,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 71 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:08,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-14 20:24:08,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 105. [2024-10-14 20:24:08,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 102 states have (on average 1.1862745098039216) internal successors, (121), 104 states have internal predecessors, (121), 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) [2024-10-14 20:24:08,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2024-10-14 20:24:08,887 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 26 [2024-10-14 20:24:08,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:08,887 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2024-10-14 20:24:08,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.9) internal successors, (78), 21 states have internal predecessors, (78), 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) [2024-10-14 20:24:08,887 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2024-10-14 20:24:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-14 20:24:08,888 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:08,888 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-10-14 20:24:08,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:24:09,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:09,089 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:09,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash -195236597, now seen corresponding path program 2 times [2024-10-14 20:24:09,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:09,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211971449] [2024-10-14 20:24:09,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:09,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:09,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211971449] [2024-10-14 20:24:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211971449] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8458064] [2024-10-14 20:24:09,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:24:09,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:09,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:09,154 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:09,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:24:09,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:24:09,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:09,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:24:09,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:09,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:09,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8458064] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:09,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:09,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-14 20:24:09,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595642542] [2024-10-14 20:24:09,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:09,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 20:24:09,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 20:24:09,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:24:09,329 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 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) [2024-10-14 20:24:09,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:09,393 INFO L93 Difference]: Finished difference Result 312 states and 373 transitions. [2024-10-14 20:24:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:24:09,394 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 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 [2024-10-14 20:24:09,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:09,395 INFO L225 Difference]: With dead ends: 312 [2024-10-14 20:24:09,395 INFO L226 Difference]: Without dead ends: 311 [2024-10-14 20:24:09,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-10-14 20:24:09,396 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 53 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:09,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 95 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:09,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-10-14 20:24:09,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 297. [2024-10-14 20:24:09,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 294 states have (on average 1.248299319727891) internal successors, (367), 296 states have internal predecessors, (367), 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) [2024-10-14 20:24:09,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 367 transitions. [2024-10-14 20:24:09,427 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 367 transitions. Word has length 42 [2024-10-14 20:24:09,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:09,427 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 367 transitions. [2024-10-14 20:24:09,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 7.5) internal successors, (90), 12 states have internal predecessors, (90), 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) [2024-10-14 20:24:09,428 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 367 transitions. [2024-10-14 20:24:09,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:24:09,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:09,428 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 3, 3, 3, 2, 1, 1, 1] [2024-10-14 20:24:09,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-14 20:24:09,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:24:09,630 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:09,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash 952700979, now seen corresponding path program 1 times [2024-10-14 20:24:09,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:09,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737478740] [2024-10-14 20:24:09,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:09,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:09,788 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:24:09,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:09,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737478740] [2024-10-14 20:24:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737478740] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:09,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755792617] [2024-10-14 20:24:09,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:09,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:09,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:09,790 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:09,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-14 20:24:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:09,826 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-14 20:24:09,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:09,994 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:24:09,994 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:10,111 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 38 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-14 20:24:10,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755792617] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:10,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:10,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2024-10-14 20:24:10,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416347619] [2024-10-14 20:24:10,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:10,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-14 20:24:10,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:10,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-14 20:24:10,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2024-10-14 20:24:10,114 INFO L87 Difference]: Start difference. First operand 297 states and 367 transitions. Second operand has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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) [2024-10-14 20:24:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:10,188 INFO L93 Difference]: Finished difference Result 496 states and 619 transitions. [2024-10-14 20:24:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 20:24:10,188 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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 43 [2024-10-14 20:24:10,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:10,193 INFO L225 Difference]: With dead ends: 496 [2024-10-14 20:24:10,193 INFO L226 Difference]: Without dead ends: 237 [2024-10-14 20:24:10,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 64 SyntacticMatches, 7 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 450 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=568, Unknown=0, NotChecked=0, Total=702 [2024-10-14 20:24:10,199 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:10,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 67 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:10,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-10-14 20:24:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-10-14 20:24:10,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 234 states have (on average 1.235042735042735) internal successors, (289), 236 states have internal predecessors, (289), 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) [2024-10-14 20:24:10,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 289 transitions. [2024-10-14 20:24:10,213 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 289 transitions. Word has length 43 [2024-10-14 20:24:10,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:10,214 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 289 transitions. [2024-10-14 20:24:10,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.0) internal successors, (81), 26 states have internal predecessors, (81), 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) [2024-10-14 20:24:10,214 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 289 transitions. [2024-10-14 20:24:10,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:24:10,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:10,216 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2024-10-14 20:24:10,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-14 20:24:10,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-14 20:24:10,421 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:10,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:10,421 INFO L85 PathProgramCache]: Analyzing trace with hash -408589197, now seen corresponding path program 2 times [2024-10-14 20:24:10,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:10,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796346663] [2024-10-14 20:24:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:10,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:10,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:10,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796346663] [2024-10-14 20:24:10,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796346663] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:10,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813369340] [2024-10-14 20:24:10,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:24:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:10,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:10,543 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:10,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-14 20:24:10,569 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-14 20:24:10,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:10,570 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:24:10,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:10,731 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-14 20:24:10,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:10,845 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-10-14 20:24:10,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813369340] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:10,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:10,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-10-14 20:24:10,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097788159] [2024-10-14 20:24:10,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:10,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 20:24:10,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:10,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 20:24:10,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:24:10,847 INFO L87 Difference]: Start difference. First operand 237 states and 289 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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) [2024-10-14 20:24:10,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:10,992 INFO L93 Difference]: Finished difference Result 237 states and 289 transitions. [2024-10-14 20:24:10,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-14 20:24:10,992 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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 47 [2024-10-14 20:24:10,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:10,993 INFO L225 Difference]: With dead ends: 237 [2024-10-14 20:24:10,993 INFO L226 Difference]: Without dead ends: 236 [2024-10-14 20:24:10,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 86 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-10-14 20:24:10,994 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:10,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 36 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:24:10,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2024-10-14 20:24:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2024-10-14 20:24:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 234 states have (on average 1.1324786324786325) internal successors, (265), 235 states have internal predecessors, (265), 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) [2024-10-14 20:24:11,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 265 transitions. [2024-10-14 20:24:11,003 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 265 transitions. Word has length 47 [2024-10-14 20:24:11,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:11,004 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 265 transitions. [2024-10-14 20:24:11,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 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) [2024-10-14 20:24:11,004 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 265 transitions. [2024-10-14 20:24:11,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-14 20:24:11,007 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:11,007 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 5, 5, 5, 4, 1, 1, 1] [2024-10-14 20:24:11,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:24:11,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-14 20:24:11,211 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:11,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:11,211 INFO L85 PathProgramCache]: Analyzing trace with hash 309086989, now seen corresponding path program 2 times [2024-10-14 20:24:11,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:11,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065678326] [2024-10-14 20:24:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:11,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:11,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065678326] [2024-10-14 20:24:11,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065678326] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633547149] [2024-10-14 20:24:11,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:24:11,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:11,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:11,434 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:11,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-14 20:24:11,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:24:11,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:11,478 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-14 20:24:11,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:11,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:11,905 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:11,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633547149] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:11,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:11,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 36 [2024-10-14 20:24:11,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813007264] [2024-10-14 20:24:11,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:11,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-14 20:24:11,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:11,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-14 20:24:11,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 20:24:11,907 INFO L87 Difference]: Start difference. First operand 236 states and 265 transitions. Second operand has 38 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 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) [2024-10-14 20:24:12,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:12,042 INFO L93 Difference]: Finished difference Result 1741 states and 1994 transitions. [2024-10-14 20:24:12,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-10-14 20:24:12,043 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 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 72 [2024-10-14 20:24:12,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:12,047 INFO L225 Difference]: With dead ends: 1741 [2024-10-14 20:24:12,047 INFO L226 Difference]: Without dead ends: 1740 [2024-10-14 20:24:12,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=379, Invalid=1027, Unknown=0, NotChecked=0, Total=1406 [2024-10-14 20:24:12,048 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 72 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:12,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 140 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:12,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2024-10-14 20:24:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 629. [2024-10-14 20:24:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 627 states have (on average 1.127591706539075) internal successors, (707), 628 states have internal predecessors, (707), 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) [2024-10-14 20:24:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 707 transitions. [2024-10-14 20:24:12,085 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 707 transitions. Word has length 72 [2024-10-14 20:24:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:12,085 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 707 transitions. [2024-10-14 20:24:12,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 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) [2024-10-14 20:24:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 707 transitions. [2024-10-14 20:24:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-14 20:24:12,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:12,086 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1] [2024-10-14 20:24:12,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-14 20:24:12,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:12,290 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:12,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:12,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1281765141, now seen corresponding path program 3 times [2024-10-14 20:24:12,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:12,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167896791] [2024-10-14 20:24:12,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:12,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:12,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167896791] [2024-10-14 20:24:12,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167896791] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:12,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102307493] [2024-10-14 20:24:12,464 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:24:12,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:12,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:12,465 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:12,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-14 20:24:12,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-14 20:24:12,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:12,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:24:12,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:12,607 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 0 proven. 445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:12,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102307493] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:12,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:12,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-10-14 20:24:12,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643423149] [2024-10-14 20:24:12,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:12,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-14 20:24:12,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:12,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-14 20:24:12,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-10-14 20:24:12,810 INFO L87 Difference]: Start difference. First operand 629 states and 707 transitions. Second operand has 25 states, 24 states have (on average 8.25) internal successors, (198), 24 states have internal predecessors, (198), 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) [2024-10-14 20:24:12,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:12,911 INFO L93 Difference]: Finished difference Result 1113 states and 1261 transitions. [2024-10-14 20:24:12,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 20:24:12,912 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 8.25) internal successors, (198), 24 states have internal predecessors, (198), 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 [2024-10-14 20:24:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:12,914 INFO L225 Difference]: With dead ends: 1113 [2024-10-14 20:24:12,914 INFO L226 Difference]: Without dead ends: 1112 [2024-10-14 20:24:12,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-10-14 20:24:12,915 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 121 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:12,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 182 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:12,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2024-10-14 20:24:12,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1095. [2024-10-14 20:24:12,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1095 states, 1093 states have (on average 1.1335773101555353) internal successors, (1239), 1094 states have internal predecessors, (1239), 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) [2024-10-14 20:24:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1239 transitions. [2024-10-14 20:24:12,949 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1239 transitions. Word has length 96 [2024-10-14 20:24:12,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:12,949 INFO L471 AbstractCegarLoop]: Abstraction has 1095 states and 1239 transitions. [2024-10-14 20:24:12,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 8.25) internal successors, (198), 24 states have internal predecessors, (198), 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) [2024-10-14 20:24:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1239 transitions. [2024-10-14 20:24:12,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 20:24:12,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:12,951 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 14, 5, 5, 5, 1, 1, 1] [2024-10-14 20:24:12,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-14 20:24:13,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:13,151 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:13,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1957359251, now seen corresponding path program 3 times [2024-10-14 20:24:13,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:13,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787494646] [2024-10-14 20:24:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:13,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:13,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:13,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 0 proven. 1163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:13,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787494646] [2024-10-14 20:24:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787494646] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:13,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653274319] [2024-10-14 20:24:13,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:24:13,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:13,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:13,839 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:13,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-14 20:24:13,899 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-10-14 20:24:13,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:13,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-10-14 20:24:13,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:14,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 62 proven. 1101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:14,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1163 backedges. 62 proven. 1101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:15,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653274319] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:15,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:15,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 40, 40] total 87 [2024-10-14 20:24:15,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852102916] [2024-10-14 20:24:15,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:15,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-10-14 20:24:15,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-10-14 20:24:15,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1368, Invalid=6288, Unknown=0, NotChecked=0, Total=7656 [2024-10-14 20:24:15,222 INFO L87 Difference]: Start difference. First operand 1095 states and 1239 transitions. Second operand has 88 states, 87 states have (on average 3.7126436781609193) internal successors, (323), 88 states have internal predecessors, (323), 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) [2024-10-14 20:24:17,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:17,579 INFO L93 Difference]: Finished difference Result 6177 states and 7491 transitions. [2024-10-14 20:24:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-10-14 20:24:17,580 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 3.7126436781609193) internal successors, (323), 88 states have internal predecessors, (323), 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 142 [2024-10-14 20:24:17,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:17,592 INFO L225 Difference]: With dead ends: 6177 [2024-10-14 20:24:17,592 INFO L226 Difference]: Without dead ends: 6176 [2024-10-14 20:24:17,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9880 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5544, Invalid=29988, Unknown=0, NotChecked=0, Total=35532 [2024-10-14 20:24:17,598 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 201 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:17,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 141 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:24:17,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2024-10-14 20:24:17,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 3896. [2024-10-14 20:24:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3894 states have (on average 1.1435541859270673) internal successors, (4453), 3895 states have internal predecessors, (4453), 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) [2024-10-14 20:24:17,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 4453 transitions. [2024-10-14 20:24:17,745 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 4453 transitions. Word has length 142 [2024-10-14 20:24:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:17,745 INFO L471 AbstractCegarLoop]: Abstraction has 3896 states and 4453 transitions. [2024-10-14 20:24:17,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 3.7126436781609193) internal successors, (323), 88 states have internal predecessors, (323), 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) [2024-10-14 20:24:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 4453 transitions. [2024-10-14 20:24:17,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-10-14 20:24:17,748 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:17,748 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1] [2024-10-14 20:24:17,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:24:17,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-14 20:24:17,949 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:17,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:17,949 INFO L85 PathProgramCache]: Analyzing trace with hash -687300437, now seen corresponding path program 4 times [2024-10-14 20:24:17,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:17,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132365934] [2024-10-14 20:24:17,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:17,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2167 backedges. 0 proven. 2167 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:18,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:18,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132365934] [2024-10-14 20:24:18,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132365934] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:18,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217125407] [2024-10-14 20:24:18,407 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:24:18,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:18,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:18,409 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:18,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-14 20:24:18,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:24:18,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:18,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 20:24:18,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:18,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2167 backedges. 909 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2024-10-14 20:24:18,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:24:18,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217125407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:24:18,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:24:18,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [23] total 41 [2024-10-14 20:24:18,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866283647] [2024-10-14 20:24:18,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:24:18,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 20:24:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:18,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 20:24:18,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=1342, Unknown=0, NotChecked=0, Total=1722 [2024-10-14 20:24:18,869 INFO L87 Difference]: Start difference. First operand 3896 states and 4453 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 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) [2024-10-14 20:24:18,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:18,974 INFO L93 Difference]: Finished difference Result 3897 states and 4453 transitions. [2024-10-14 20:24:18,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 20:24:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 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 204 [2024-10-14 20:24:18,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:18,977 INFO L225 Difference]: With dead ends: 3897 [2024-10-14 20:24:18,977 INFO L226 Difference]: Without dead ends: 255 [2024-10-14 20:24:18,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=380, Invalid=1342, Unknown=0, NotChecked=0, Total=1722 [2024-10-14 20:24:18,983 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:18,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 62 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:24:18,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-10-14 20:24:18,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2024-10-14 20:24:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 254 states have (on average 1.0039370078740157) internal successors, (255), 254 states have internal predecessors, (255), 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) [2024-10-14 20:24:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 255 transitions. [2024-10-14 20:24:18,993 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 255 transitions. Word has length 204 [2024-10-14 20:24:18,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:18,993 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 255 transitions. [2024-10-14 20:24:18,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 18 states have internal predecessors, (59), 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) [2024-10-14 20:24:18,993 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 255 transitions. [2024-10-14 20:24:18,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-10-14 20:24:18,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:18,995 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 34, 34, 34, 34, 30, 5, 5, 5, 1, 1, 1] [2024-10-14 20:24:19,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-14 20:24:19,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:19,199 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:19,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1417918355, now seen corresponding path program 4 times [2024-10-14 20:24:19,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:19,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951093063] [2024-10-14 20:24:19,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:19,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:21,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951093063] [2024-10-14 20:24:21,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951093063] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:21,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190273782] [2024-10-14 20:24:21,049 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:24:21,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:21,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:21,051 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:21,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-14 20:24:21,136 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:24:21,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:21,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-14 20:24:21,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:21,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:21,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:24,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4083 backedges. 0 proven. 4083 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:24,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190273782] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:24,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:24,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70, 70] total 140 [2024-10-14 20:24:24,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829439567] [2024-10-14 20:24:24,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:24,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2024-10-14 20:24:24,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:24,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2024-10-14 20:24:24,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2024-10-14 20:24:24,295 INFO L87 Difference]: Start difference. First operand 255 states and 255 transitions. Second operand has 142 states, 141 states have (on average 3.602836879432624) internal successors, (508), 141 states have internal predecessors, (508), 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) [2024-10-14 20:24:24,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:24,662 INFO L93 Difference]: Finished difference Result 508 states and 543 transitions. [2024-10-14 20:24:24,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2024-10-14 20:24:24,663 INFO L78 Accepts]: Start accepts. Automaton has has 142 states, 141 states have (on average 3.602836879432624) internal successors, (508), 141 states have internal predecessors, (508), 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 254 [2024-10-14 20:24:24,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:24,664 INFO L225 Difference]: With dead ends: 508 [2024-10-14 20:24:24,664 INFO L226 Difference]: Without dead ends: 507 [2024-10-14 20:24:24,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5917 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=5111, Invalid=14911, Unknown=0, NotChecked=0, Total=20022 [2024-10-14 20:24:24,666 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 13 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:24,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 253 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:24:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-10-14 20:24:24,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 507. [2024-10-14 20:24:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 506 states have (on average 1.0019762845849802) internal successors, (507), 506 states have internal predecessors, (507), 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) [2024-10-14 20:24:24,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 507 transitions. [2024-10-14 20:24:24,693 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 507 transitions. Word has length 254 [2024-10-14 20:24:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:24,693 INFO L471 AbstractCegarLoop]: Abstraction has 507 states and 507 transitions. [2024-10-14 20:24:24,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 141 states have (on average 3.602836879432624) internal successors, (508), 141 states have internal predecessors, (508), 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) [2024-10-14 20:24:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 507 transitions. [2024-10-14 20:24:24,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2024-10-14 20:24:24,698 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:24,698 INFO L215 NwaCegarLoop]: trace histogram [71, 71, 70, 70, 70, 70, 66, 5, 5, 5, 1, 1, 1] [2024-10-14 20:24:24,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 20:24:24,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:24,902 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:24,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:24,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1381485523, now seen corresponding path program 5 times [2024-10-14 20:24:24,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:24,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768886983] [2024-10-14 20:24:24,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:24,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:24:32,871 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:32,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:24:32,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768886983] [2024-10-14 20:24:32,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768886983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:24:32,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134459370] [2024-10-14 20:24:32,872 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:24:32,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:24:32,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:24:32,873 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:24:32,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-14 20:24:33,070 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2024-10-14 20:24:33,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:24:33,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 143 conjuncts are in the unsatisfiable core [2024-10-14 20:24:33,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:24:33,557 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:33,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:24:45,109 INFO L134 CoverageAnalysis]: Checked inductivity of 17205 backedges. 0 proven. 17205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:24:45,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134459370] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:24:45,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:24:45,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [142, 142, 142] total 284 [2024-10-14 20:24:45,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335820293] [2024-10-14 20:24:45,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:24:45,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 286 states [2024-10-14 20:24:45,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:24:45,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 286 interpolants. [2024-10-14 20:24:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20591, Invalid=60919, Unknown=0, NotChecked=0, Total=81510 [2024-10-14 20:24:45,121 INFO L87 Difference]: Start difference. First operand 507 states and 507 transitions. Second operand has 286 states, 285 states have (on average 3.550877192982456) internal successors, (1012), 285 states have internal predecessors, (1012), 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) [2024-10-14 20:24:46,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:24:46,386 INFO L93 Difference]: Finished difference Result 1012 states and 1083 transitions. [2024-10-14 20:24:46,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2024-10-14 20:24:46,387 INFO L78 Accepts]: Start accepts. Automaton has has 286 states, 285 states have (on average 3.550877192982456) internal successors, (1012), 285 states have internal predecessors, (1012), 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 506 [2024-10-14 20:24:46,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:24:46,390 INFO L225 Difference]: With dead ends: 1012 [2024-10-14 20:24:46,390 INFO L226 Difference]: Without dead ends: 1011 [2024-10-14 20:24:46,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 868 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24781 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=20591, Invalid=60919, Unknown=0, NotChecked=0, Total=81510 [2024-10-14 20:24:46,393 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:24:46,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 476 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:24:46,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-10-14 20:24:46,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2024-10-14 20:24:46,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 1010 states have (on average 1.000990099009901) internal successors, (1011), 1010 states have internal predecessors, (1011), 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) [2024-10-14 20:24:46,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1011 transitions. [2024-10-14 20:24:46,418 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1011 transitions. Word has length 506 [2024-10-14 20:24:46,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:24:46,418 INFO L471 AbstractCegarLoop]: Abstraction has 1011 states and 1011 transitions. [2024-10-14 20:24:46,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 286 states, 285 states have (on average 3.550877192982456) internal successors, (1012), 285 states have internal predecessors, (1012), 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) [2024-10-14 20:24:46,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1011 transitions. [2024-10-14 20:24:46,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1011 [2024-10-14 20:24:46,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:24:46,437 INFO L215 NwaCegarLoop]: trace histogram [143, 143, 142, 142, 142, 142, 138, 5, 5, 5, 1, 1, 1] [2024-10-14 20:24:46,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 20:24:46,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-14 20:24:46,638 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-10-14 20:24:46,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:24:46,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2095819693, now seen corresponding path program 6 times [2024-10-14 20:24:46,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:24:46,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995737849] [2024-10-14 20:24:46,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:24:46,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:24:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:25:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 70665 backedges. 0 proven. 70665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:25:23,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:25:23,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995737849] [2024-10-14 20:25:23,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995737849] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:25:23,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011457346] [2024-10-14 20:25:23,641 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:25:23,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:25:23,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:25:23,643 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:25:23,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:25:24,186 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 139 check-sat command(s) [2024-10-14 20:25:24,187 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:25:24,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 287 conjuncts are in the unsatisfiable core [2024-10-14 20:25:24,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:25:25,046 INFO L134 CoverageAnalysis]: Checked inductivity of 70665 backedges. 0 proven. 70665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:25:25,047 INFO L311 TraceCheckSpWp]: Computing backward predicates...