./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/reducercommutativity/max.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/reducercommutativity/max.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 97795e7b99ddd869ecccb7f865206a167342b52333873684a94abd35acf6650e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:58:00,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:58:00,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-22 21:58:00,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:58:00,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:58:00,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:58:00,310 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:58:00,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:58:00,311 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:58:00,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:58:00,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:58:00,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:58:00,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:58:00,315 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:58:00,315 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:58:00,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:58:00,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 21:58:00,321 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:58:00,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:58:00,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:58:00,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:58:00,322 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 21:58:00,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:58:00,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 21:58:00,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:58:00,323 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-22 21:58:00,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:58:00,324 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:58:00,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 21:58:00,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:58:00,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:58:00,325 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:58:00,325 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:58:00,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:58:00,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:58:00,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:58:00,341 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:58:00,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 21:58:00,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:58:00,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:58:00,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:58:00,344 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:58:00,344 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:58:00,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:58:00,345 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97795e7b99ddd869ecccb7f865206a167342b52333873684a94abd35acf6650e [2024-11-22 21:58:00,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:58:00,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:58:00,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:58:00,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:58:00,632 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:58:00,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max.i [2024-11-22 21:58:02,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:58:02,270 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:58:02,271 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max.i [2024-11-22 21:58:02,279 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/719ecacbb/8afcb1b32df24f5ab0fca5c51d1396c3/FLAG0c285c415 [2024-11-22 21:58:02,654 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/719ecacbb/8afcb1b32df24f5ab0fca5c51d1396c3 [2024-11-22 21:58:02,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:58:02,656 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:58:02,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:58:02,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:58:02,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:58:02,663 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c532502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02, skipping insertion in model container [2024-11-22 21:58:02,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,681 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:58:02,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:58:02,871 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:58:02,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:58:02,902 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:58:02,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02 WrapperNode [2024-11-22 21:58:02,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:58:02,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:58:02,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:58:02,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:58:02,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,932 INFO L138 Inliner]: procedures = 16, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-11-22 21:58:02,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:58:02,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:58:02,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:58:02,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:58:02,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,943 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,954 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [2, 6, 10]. 56 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6, 0]. The 4 writes are split as follows [0, 0, 4]. [2024-11-22 21:58:02,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:58:02,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:58:02,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:58:02,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:58:02,976 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (1/1) ... [2024-11-22 21:58:02,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:58:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:03,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 21:58:03,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 21:58:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:58:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure max [2024-11-22 21:58:03,054 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2024-11-22 21:58:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:58:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 21:58:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 21:58:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 21:58:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 21:58:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 21:58:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 21:58:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:58:03,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:58:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 21:58:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 21:58:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 21:58:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 21:58:03,134 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:58:03,136 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:58:03,344 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-22 21:58:03,344 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:58:03,362 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:58:03,362 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 21:58:03,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:58:03 BoogieIcfgContainer [2024-11-22 21:58:03,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:58:03,365 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:58:03,366 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:58:03,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:58:03,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:58:02" (1/3) ... [2024-11-22 21:58:03,370 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d03c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:58:03, skipping insertion in model container [2024-11-22 21:58:03,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:58:02" (2/3) ... [2024-11-22 21:58:03,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d03c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:58:03, skipping insertion in model container [2024-11-22 21:58:03,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:58:03" (3/3) ... [2024-11-22 21:58:03,373 INFO L112 eAbstractionObserver]: Analyzing ICFG max.i [2024-11-22 21:58:03,387 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:58:03,388 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-22 21:58:03,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:58:03,451 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;@40b1f504, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:58:03,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-22 21:58:03,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 43 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-22 21:58:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-22 21:58:03,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:03,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:03,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:03,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:03,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1175413910, now seen corresponding path program 1 times [2024-11-22 21:58:03,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:03,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758845573] [2024-11-22 21:58:03,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:03,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:03,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:03,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:58:03,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:03,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758845573] [2024-11-22 21:58:03,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758845573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:03,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:58:03,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:58:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804557589] [2024-11-22 21:58:03,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:03,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:58:03,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:03,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:58:03,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:58:03,805 INFO L87 Difference]: Start difference. First operand has 48 states, 33 states have (on average 1.5454545454545454) internal successors, (51), 43 states have internal predecessors, (51), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:03,856 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2024-11-22 21:58:03,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:58:03,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-22 21:58:03,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:03,867 INFO L225 Difference]: With dead ends: 97 [2024-11-22 21:58:03,868 INFO L226 Difference]: Without dead ends: 45 [2024-11-22 21:58:03,871 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 [2024-11-22 21:58:03,875 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:03,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 135 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:03,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-22 21:58:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-22 21:58:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 41 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-22 21:58:03,915 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 10 [2024-11-22 21:58:03,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:03,916 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-22 21:58:03,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-22 21:58:03,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-22 21:58:03,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:03,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:03,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:58:03,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:03,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:03,919 INFO L85 PathProgramCache]: Analyzing trace with hash 743889603, now seen corresponding path program 1 times [2024-11-22 21:58:03,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:03,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067950739] [2024-11-22 21:58:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:03,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:58:04,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:04,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067950739] [2024-11-22 21:58:04,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067950739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:04,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044775011] [2024-11-22 21:58:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:04,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:04,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:04,104 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:58:04,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 21:58:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:04,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:58:04,202 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:58:04,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:58:04,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044775011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:04,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 21:58:04,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-22 21:58:04,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448293406] [2024-11-22 21:58:04,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:04,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:58:04,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:58:04,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:58:04,305 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:04,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:04,362 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-11-22 21:58:04,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:58:04,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-22 21:58:04,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:04,364 INFO L225 Difference]: With dead ends: 45 [2024-11-22 21:58:04,364 INFO L226 Difference]: Without dead ends: 44 [2024-11-22 21:58:04,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 21:58:04,377 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 3 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:04,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-22 21:58:04,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-22 21:58:04,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 40 states have internal predecessors, (45), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:04,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2024-11-22 21:58:04,384 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 16 [2024-11-22 21:58:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:04,384 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2024-11-22 21:58:04,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:04,385 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2024-11-22 21:58:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-22 21:58:04,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:04,386 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:04,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:04,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:04,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:04,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:04,591 INFO L85 PathProgramCache]: Analyzing trace with hash -736586839, now seen corresponding path program 1 times [2024-11-22 21:58:04,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:04,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024188376] [2024-11-22 21:58:04,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:04,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:04,681 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 21:58:04,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:04,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024188376] [2024-11-22 21:58:04,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024188376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:04,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006368304] [2024-11-22 21:58:04,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:04,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:04,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:04,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 21:58:04,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 21:58:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:04,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 21:58:04,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 21:58:04,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:58:04,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006368304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:04,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 21:58:04,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-22 21:58:04,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783399530] [2024-11-22 21:58:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:04,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:58:04,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:04,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:58:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:58:04,799 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:04,822 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-11-22 21:58:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:58:04,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-22 21:58:04,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:04,823 INFO L225 Difference]: With dead ends: 44 [2024-11-22 21:58:04,823 INFO L226 Difference]: Without dead ends: 42 [2024-11-22 21:58:04,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:58:04,825 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 27 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:04,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:04,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-22 21:58:04,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-22 21:58:04,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 38 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-11-22 21:58:04,832 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2024-11-22 21:58:04,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:04,833 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-22 21:58:04,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-11-22 21:58:04,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-22 21:58:04,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:04,834 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:04,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:05,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-22 21:58:05,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:05,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:05,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1585741264, now seen corresponding path program 1 times [2024-11-22 21:58:05,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:05,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103639233] [2024-11-22 21:58:05,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:05,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:58:05,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:05,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103639233] [2024-11-22 21:58:05,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103639233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:05,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463791935] [2024-11-22 21:58:05,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:05,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:05,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:05,153 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) [2024-11-22 21:58:05,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 21:58:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:05,214 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:58:05,215 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:05,257 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:58:05,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:58:05,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:58:05,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463791935] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:58:05,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:58:05,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-22 21:58:05,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952773398] [2024-11-22 21:58:05,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:58:05,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 21:58:05,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:05,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 21:58:05,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-22 21:58:05,334 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:05,396 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2024-11-22 21:58:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:58:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2024-11-22 21:58:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:05,398 INFO L225 Difference]: With dead ends: 61 [2024-11-22 21:58:05,398 INFO L226 Difference]: Without dead ends: 60 [2024-11-22 21:58:05,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-22 21:58:05,399 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 7 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:05,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 236 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 21:58:05,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-22 21:58:05,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-22 21:58:05,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 56 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2024-11-22 21:58:05,407 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 17 [2024-11-22 21:58:05,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:05,407 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2024-11-22 21:58:05,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2024-11-22 21:58:05,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 21:58:05,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:05,408 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:05,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 21:58:05,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:05,613 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:05,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:05,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1359355456, now seen corresponding path program 1 times [2024-11-22 21:58:05,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:05,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122796033] [2024-11-22 21:58:05,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:05,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 21:58:05,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:05,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122796033] [2024-11-22 21:58:05,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122796033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:05,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [324225935] [2024-11-22 21:58:05,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:05,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:05,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:05,697 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) [2024-11-22 21:58:05,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 21:58:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:05,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 21:58:05,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 21:58:05,792 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:58:05,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [324225935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:05,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 21:58:05,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 21:58:05,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220876530] [2024-11-22 21:58:05,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:05,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:58:05,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:05,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:58:05,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:05,797 INFO L87 Difference]: Start difference. First operand 60 states and 72 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:05,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:05,819 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2024-11-22 21:58:05,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:58:05,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-22 21:58:05,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:05,822 INFO L225 Difference]: With dead ends: 60 [2024-11-22 21:58:05,822 INFO L226 Difference]: Without dead ends: 58 [2024-11-22 21:58:05,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:05,823 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:05,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:05,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-22 21:58:05,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-22 21:58:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-11-22 21:58:05,832 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 19 [2024-11-22 21:58:05,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:05,832 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-11-22 21:58:05,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-11-22 21:58:05,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-22 21:58:05,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:05,833 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:05,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 21:58:06,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:06,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:06,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:06,035 INFO L85 PathProgramCache]: Analyzing trace with hash -670532734, now seen corresponding path program 1 times [2024-11-22 21:58:06,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:06,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034491393] [2024-11-22 21:58:06,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:06,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:06,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 21:58:06,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:06,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034491393] [2024-11-22 21:58:06,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034491393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:06,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [517056697] [2024-11-22 21:58:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:06,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:06,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:06,117 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) [2024-11-22 21:58:06,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 21:58:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:06,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 21:58:06,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 21:58:06,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:58:06,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [517056697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:06,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 21:58:06,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 21:58:06,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986807865] [2024-11-22 21:58:06,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:06,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:58:06,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:06,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:58:06,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:06,222 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:06,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:06,247 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-11-22 21:58:06,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:58:06,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-22 21:58:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:06,248 INFO L225 Difference]: With dead ends: 65 [2024-11-22 21:58:06,249 INFO L226 Difference]: Without dead ends: 64 [2024-11-22 21:58:06,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:06,249 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:06,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:06,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-22 21:58:06,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-11-22 21:58:06,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:06,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2024-11-22 21:58:06,256 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 21 [2024-11-22 21:58:06,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:06,257 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2024-11-22 21:58:06,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:06,257 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2024-11-22 21:58:06,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-22 21:58:06,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:06,258 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:06,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:06,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:06,459 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:06,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:06,459 INFO L85 PathProgramCache]: Analyzing trace with hash 688321808, now seen corresponding path program 1 times [2024-11-22 21:58:06,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:06,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926367394] [2024-11-22 21:58:06,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:06,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:06,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:06,508 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 21:58:06,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926367394] [2024-11-22 21:58:06,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926367394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243134887] [2024-11-22 21:58:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:06,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:06,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:06,512 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) [2024-11-22 21:58:06,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 21:58:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:06,567 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 21:58:06,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 21:58:06,582 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:58:06,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243134887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:06,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 21:58:06,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-22 21:58:06,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751045032] [2024-11-22 21:58:06,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:06,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:58:06,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:06,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:58:06,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:06,585 INFO L87 Difference]: Start difference. First operand 62 states and 75 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:06,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:06,604 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2024-11-22 21:58:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:58:06,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-22 21:58:06,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:06,605 INFO L225 Difference]: With dead ends: 65 [2024-11-22 21:58:06,606 INFO L226 Difference]: Without dead ends: 64 [2024-11-22 21:58:06,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:06,607 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:06,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 60 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:06,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-22 21:58:06,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-11-22 21:58:06,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.3148148148148149) internal successors, (71), 59 states have internal predecessors, (71), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:06,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2024-11-22 21:58:06,613 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 22 [2024-11-22 21:58:06,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:06,613 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2024-11-22 21:58:06,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:06,613 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2024-11-22 21:58:06,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 21:58:06,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:06,614 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:06,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 21:58:06,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:06,815 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:06,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:06,816 INFO L85 PathProgramCache]: Analyzing trace with hash 52296594, now seen corresponding path program 1 times [2024-11-22 21:58:06,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:06,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319465626] [2024-11-22 21:58:06,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:06,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:06,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-22 21:58:06,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:06,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319465626] [2024-11-22 21:58:06,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319465626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:06,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262751942] [2024-11-22 21:58:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:06,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:06,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:06,876 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) [2024-11-22 21:58:06,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 21:58:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:06,934 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:58:06,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:06,956 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 21:58:06,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 21:58:06,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262751942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:06,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 21:58:06,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-22 21:58:06,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489140118] [2024-11-22 21:58:06,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:06,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:58:06,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:06,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:58:06,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:06,960 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:06,996 INFO L93 Difference]: Finished difference Result 122 states and 149 transitions. [2024-11-22 21:58:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:58:06,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-11-22 21:58:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:06,997 INFO L225 Difference]: With dead ends: 122 [2024-11-22 21:58:06,998 INFO L226 Difference]: Without dead ends: 63 [2024-11-22 21:58:06,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:07,000 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 38 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:07,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 46 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-22 21:58:07,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-22 21:58:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 59 states have internal predecessors, (70), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-22 21:58:07,009 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 24 [2024-11-22 21:58:07,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:07,009 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-22 21:58:07,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-22 21:58:07,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 21:58:07,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:07,011 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:07,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:07,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:07,217 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:07,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:07,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1036412402, now seen corresponding path program 1 times [2024-11-22 21:58:07,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:07,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843131364] [2024-11-22 21:58:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:07,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 21:58:07,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:07,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843131364] [2024-11-22 21:58:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843131364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:07,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:58:07,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:58:07,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524760677] [2024-11-22 21:58:07,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:07,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:58:07,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:07,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:58:07,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:58:07,287 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:07,318 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2024-11-22 21:58:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:58:07,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2024-11-22 21:58:07,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:07,319 INFO L225 Difference]: With dead ends: 68 [2024-11-22 21:58:07,320 INFO L226 Difference]: Without dead ends: 66 [2024-11-22 21:58:07,320 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 [2024-11-22 21:58:07,320 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 1 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:07,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 85 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:07,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-22 21:58:07,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-22 21:58:07,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 57 states have (on average 1.280701754385965) internal successors, (73), 62 states have internal predecessors, (73), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:07,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2024-11-22 21:58:07,330 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 36 [2024-11-22 21:58:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:07,330 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2024-11-22 21:58:07,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:07,331 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2024-11-22 21:58:07,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-22 21:58:07,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:07,335 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:07,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 21:58:07,336 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:07,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1705253285, now seen corresponding path program 2 times [2024-11-22 21:58:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073436145] [2024-11-22 21:58:07,337 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:58:07,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:07,349 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:58:07,349 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:58:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 21:58:07,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073436145] [2024-11-22 21:58:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073436145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:07,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58622728] [2024-11-22 21:58:07,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:58:07,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:07,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:07,382 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) [2024-11-22 21:58:07,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 21:58:07,441 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:58:07,442 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:58:07,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:58:07,444 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:07,500 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 21:58:07,501 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:58:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-22 21:58:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58622728] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:58:07,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:58:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-11-22 21:58:07,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520801178] [2024-11-22 21:58:07,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:58:07,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:58:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:58:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:58:07,571 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:07,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:07,614 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2024-11-22 21:58:07,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:58:07,615 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-22 21:58:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:07,616 INFO L225 Difference]: With dead ends: 66 [2024-11-22 21:58:07,616 INFO L226 Difference]: Without dead ends: 61 [2024-11-22 21:58:07,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:58:07,617 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 27 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:07,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 69 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:07,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-22 21:58:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 38. [2024-11-22 21:58:07,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-11-22 21:58:07,622 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 35 [2024-11-22 21:58:07,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:07,622 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-11-22 21:58:07,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:07,623 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-11-22 21:58:07,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-22 21:58:07,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:07,624 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:07,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:07,827 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,SelfDestructingSolverStorable9 [2024-11-22 21:58:07,828 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:07,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:07,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1767831498, now seen corresponding path program 1 times [2024-11-22 21:58:07,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:07,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102796578] [2024-11-22 21:58:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:07,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:07,911 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-22 21:58:07,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:07,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102796578] [2024-11-22 21:58:07,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102796578] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:07,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952907334] [2024-11-22 21:58:07,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:07,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:07,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:07,915 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) [2024-11-22 21:58:07,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-22 21:58:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:07,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 21:58:07,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:08,049 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 21:58:08,049 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:58:08,198 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-22 21:58:08,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952907334] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:58:08,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:58:08,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 13 [2024-11-22 21:58:08,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490845442] [2024-11-22 21:58:08,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:58:08,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 21:58:08,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:08,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 21:58:08,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-22 21:58:08,201 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 21:58:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:08,343 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2024-11-22 21:58:08,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-22 21:58:08,343 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 41 [2024-11-22 21:58:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:08,344 INFO L225 Difference]: With dead ends: 87 [2024-11-22 21:58:08,344 INFO L226 Difference]: Without dead ends: 53 [2024-11-22 21:58:08,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-22 21:58:08,345 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 64 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:08,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 82 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 21:58:08,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-22 21:58:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2024-11-22 21:58:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 41 states have (on average 1.170731707317073) internal successors, (48), 44 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2024-11-22 21:58:08,350 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 41 [2024-11-22 21:58:08,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:08,350 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2024-11-22 21:58:08,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 13 states have internal predecessors, (67), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-22 21:58:08,350 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2024-11-22 21:58:08,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-22 21:58:08,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:08,351 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:08,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:08,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:08,552 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:08,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:08,553 INFO L85 PathProgramCache]: Analyzing trace with hash 131890856, now seen corresponding path program 1 times [2024-11-22 21:58:08,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:08,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718745433] [2024-11-22 21:58:08,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:08,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:08,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 21:58:08,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:08,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718745433] [2024-11-22 21:58:08,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718745433] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:08,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936029794] [2024-11-22 21:58:08,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:08,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:08,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:08,654 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) [2024-11-22 21:58:08,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-22 21:58:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:08,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-22 21:58:08,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 21:58:08,755 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:58:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-22 21:58:08,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936029794] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:58:08,797 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:58:08,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-22 21:58:08,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071969566] [2024-11-22 21:58:08,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:58:08,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 21:58:08,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:08,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 21:58:08,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 21:58:08,799 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:08,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:08,841 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-11-22 21:58:08,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 21:58:08,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 54 [2024-11-22 21:58:08,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:08,844 INFO L225 Difference]: With dead ends: 59 [2024-11-22 21:58:08,844 INFO L226 Difference]: Without dead ends: 57 [2024-11-22 21:58:08,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 21:58:08,845 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:08,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 113 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:08,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-22 21:58:08,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-22 21:58:08,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 50 states have (on average 1.18) internal successors, (59), 53 states have internal predecessors, (59), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2024-11-22 21:58:08,856 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 54 [2024-11-22 21:58:08,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:08,856 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2024-11-22 21:58:08,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:08,856 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2024-11-22 21:58:08,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 21:58:08,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:08,857 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:08,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:09,058 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,SelfDestructingSolverStorable11 [2024-11-22 21:58:09,058 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:09,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:09,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2101903574, now seen corresponding path program 1 times [2024-11-22 21:58:09,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:09,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322617663] [2024-11-22 21:58:09,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:09,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 21:58:09,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:09,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322617663] [2024-11-22 21:58:09,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322617663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:09,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:58:09,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:58:09,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890120892] [2024-11-22 21:58:09,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:09,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:58:09,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:09,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:58:09,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:58:09,110 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:09,128 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2024-11-22 21:58:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:58:09,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 56 [2024-11-22 21:58:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:09,129 INFO L225 Difference]: With dead ends: 57 [2024-11-22 21:58:09,129 INFO L226 Difference]: Without dead ends: 55 [2024-11-22 21:58:09,130 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 [2024-11-22 21:58:09,130 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:09,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 61 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:09,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-22 21:58:09,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-22 21:58:09,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.1) internal successors, (55), 51 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:09,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2024-11-22 21:58:09,134 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 56 [2024-11-22 21:58:09,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:09,135 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2024-11-22 21:58:09,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:09,135 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2024-11-22 21:58:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 21:58:09,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:09,135 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:09,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 21:58:09,136 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:09,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:09,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2070129386, now seen corresponding path program 1 times [2024-11-22 21:58:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:09,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576554290] [2024-11-22 21:58:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:58:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:58:09,198 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-22 21:58:09,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:09,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576554290] [2024-11-22 21:58:09,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576554290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:58:09,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:58:09,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:58:09,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355540672] [2024-11-22 21:58:09,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:58:09,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:58:09,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:09,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:58:09,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:58:09,201 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:09,218 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2024-11-22 21:58:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:58:09,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2024-11-22 21:58:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:09,219 INFO L225 Difference]: With dead ends: 55 [2024-11-22 21:58:09,219 INFO L226 Difference]: Without dead ends: 54 [2024-11-22 21:58:09,219 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 [2024-11-22 21:58:09,220 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:09,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:09,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-22 21:58:09,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-22 21:58:09,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.08) internal successors, (54), 50 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-22 21:58:09,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2024-11-22 21:58:09,224 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 65 [2024-11-22 21:58:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:09,224 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2024-11-22 21:58:09,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 21:58:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2024-11-22 21:58:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 21:58:09,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 21:58:09,225 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:09,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 21:58:09,226 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-22 21:58:09,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:58:09,226 INFO L85 PathProgramCache]: Analyzing trace with hash 845564760, now seen corresponding path program 2 times [2024-11-22 21:58:09,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:58:09,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289969229] [2024-11-22 21:58:09,226 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:58:09,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:58:09,236 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:58:09,236 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:58:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 21:58:09,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:58:09,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289969229] [2024-11-22 21:58:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289969229] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 21:58:09,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469477755] [2024-11-22 21:58:09,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:58:09,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 21:58:09,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:58:09,258 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) [2024-11-22 21:58:09,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-22 21:58:09,314 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:58:09,315 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:58:09,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 21:58:09,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 21:58:09,407 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 21:58:09,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 21:58:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-22 21:58:09,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469477755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 21:58:09,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 21:58:09,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-22 21:58:09,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235931180] [2024-11-22 21:58:09,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 21:58:09,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:58:09,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:58:09,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:58:09,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:58:09,468 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 21:58:09,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 21:58:09,493 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2024-11-22 21:58:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:58:09,493 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2024-11-22 21:58:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 21:58:09,494 INFO L225 Difference]: With dead ends: 54 [2024-11-22 21:58:09,494 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 21:58:09,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:58:09,495 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 21:58:09,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 35 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 21:58:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 21:58:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 21:58:09,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 21:58:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 21:58:09,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2024-11-22 21:58:09,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 21:58:09,496 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 21:58:09,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-22 21:58:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 21:58:09,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 21:58:09,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-22 21:58:09,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-22 21:58:09,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-22 21:58:09,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-22 21:58:09,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-22 21:58:09,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-22 21:58:09,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-22 21:58:09,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-22 21:58:09,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-22 21:58:09,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-22 21:58:09,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-22 21:58:09,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-22 21:58:09,704 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:58:09,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 21:58:09,849 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:58:09,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:58:09 BoogieIcfgContainer [2024-11-22 21:58:09,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:58:09,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:58:09,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:58:09,870 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:58:09,871 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:58:03" (3/4) ... [2024-11-22 21:58:09,873 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:58:09,876 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure max [2024-11-22 21:58:09,880 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-22 21:58:09,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 21:58:09,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-22 21:58:09,881 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 21:58:09,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:58:09,963 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:58:09,963 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:58:09,964 INFO L158 Benchmark]: Toolchain (without parser) took 7307.22ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 132.1MB in the beginning and 108.1MB in the end (delta: 23.9MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2024-11-22 21:58:09,964 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 165.7MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:58:09,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.04ms. Allocated memory is still 165.7MB. Free memory was 132.1MB in the beginning and 119.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 21:58:09,965 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.35ms. Allocated memory is still 165.7MB. Free memory was 119.5MB in the beginning and 117.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:58:09,966 INFO L158 Benchmark]: Boogie Preprocessor took 41.74ms. Allocated memory is still 165.7MB. Free memory was 117.9MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:58:09,966 INFO L158 Benchmark]: RCFGBuilder took 387.63ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 124.8MB in the end (delta: -9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-22 21:58:09,966 INFO L158 Benchmark]: TraceAbstraction took 6504.73ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 124.4MB in the beginning and 113.4MB in the end (delta: 11.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-22 21:58:09,966 INFO L158 Benchmark]: Witness Printer took 93.19ms. Allocated memory is still 199.2MB. Free memory was 113.4MB in the beginning and 108.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:58:09,968 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 165.7MB. Free memory is still 133.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.04ms. Allocated memory is still 165.7MB. Free memory was 132.1MB in the beginning and 119.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.35ms. Allocated memory is still 165.7MB. Free memory was 119.5MB in the beginning and 117.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.74ms. Allocated memory is still 165.7MB. Free memory was 117.9MB in the beginning and 115.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.63ms. Allocated memory is still 165.7MB. Free memory was 115.8MB in the beginning and 124.8MB in the end (delta: -9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 6504.73ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 124.4MB in the beginning and 113.4MB in the end (delta: 11.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Witness Printer took 93.19ms. Allocated memory is still 199.2MB. Free memory was 113.4MB in the beginning and 108.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 214 mSDsluCounter, 1245 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 816 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 518 IncrementalHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 429 mSDtfsCounter, 518 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 608 GetRequests, 528 SyntacticMatches, 4 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=9, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 31 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 841 NumberOfCodeBlocks, 683 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1027 ConstructedInterpolants, 0 QuantifiedInterpolants, 2007 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1233 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 31 InterpolantComputations, 10 PerfectInterpolantSequences, 731/885 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((N <= 2147483647) && ((1 <= i) || (i == 0))) && (1 < N)) - ProcedureContractResult [Line: 17]: Procedure Contract for max Derived contract for procedure max. Requires: ((N <= 2147483647) && (2 <= N)) Ensures: (((N <= 2147483647) && (2 <= N)) && (N == \old(N))) RESULT: Ultimate proved your program to be correct! [2024-11-22 21:58:09,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE