./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 c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/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-?-c7c6ca5-m [2024-11-09 11:02:46,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:02:46,977 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 11:02:46,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:02:46,985 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:02:47,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:02:47,033 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:02:47,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:02:47,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:02:47,035 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:02:47,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:02:47,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:02:47,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:02:47,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:02:47,039 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:02:47,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:02:47,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:02:47,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 11:02:47,040 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:02:47,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 11:02:47,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:02:47,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:02:47,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:02:47,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:02:47,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:02:47,044 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:02:47,045 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:02:47,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 11:02:47,045 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:02:47,045 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:02:47,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:02:47,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:02:47,046 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:02:47,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:02:47,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:02:47,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:02:47,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:02:47,047 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:02:47,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:02:47,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:02:47,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:02:47,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:02:47,050 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:02:47,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:02:47,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97795e7b99ddd869ecccb7f865206a167342b52333873684a94abd35acf6650e [2024-11-09 11:02:47,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:02:47,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:02:47,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:02:47,352 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:02:47,353 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:02:47,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max.i [2024-11-09 11:02:48,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:02:48,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:02:48,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max.i [2024-11-09 11:02:48,957 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b02503e/d30fcb8629204ef592df5fa14862202d/FLAG29b7f595e [2024-11-09 11:02:48,970 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6b02503e/d30fcb8629204ef592df5fa14862202d [2024-11-09 11:02:48,973 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:02:48,974 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:02:48,975 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:02:48,991 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:02:48,997 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:02:48,998 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:02:48" (1/1) ... [2024-11-09 11:02:48,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69197aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:48, skipping insertion in model container [2024-11-09 11:02:48,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:02:48" (1/1) ... [2024-11-09 11:02:49,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:02:49,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:02:49,222 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:02:49,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:02:49,254 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:02:49,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49 WrapperNode [2024-11-09 11:02:49,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:02:49,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:02:49,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:02:49,256 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:02:49,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,290 INFO L138 Inliner]: procedures = 16, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2024-11-09 11:02:49,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:02:49,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:02:49,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:02:49,292 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:02:49,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,304 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,318 INFO L175 MemorySlicer]: Split 18 memory accesses to 3 slices as follows [2, 10, 6]. 56 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 6]. The 4 writes are split as follows [0, 4, 0]. [2024-11-09 11:02:49,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,333 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:02:49,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:02:49,337 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:02:49,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:02:49,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (1/1) ... [2024-11-09 11:02:49,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:02:49,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:49,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 11:02:49,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 11:02:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 11:02:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure max [2024-11-09 11:02:49,431 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2024-11-09 11:02:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 11:02:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 11:02:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 11:02:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 11:02:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 11:02:49,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 11:02:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 11:02:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:02:49,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:02:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 11:02:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 11:02:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 11:02:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 11:02:49,530 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:02:49,532 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:02:49,828 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 11:02:49,829 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:02:49,846 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:02:49,846 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 11:02:49,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:02:49 BoogieIcfgContainer [2024-11-09 11:02:49,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:02:49,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:02:49,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:02:49,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:02:49,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:02:48" (1/3) ... [2024-11-09 11:02:49,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774a346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:02:49, skipping insertion in model container [2024-11-09 11:02:49,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:02:49" (2/3) ... [2024-11-09 11:02:49,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@774a346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:02:49, skipping insertion in model container [2024-11-09 11:02:49,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:02:49" (3/3) ... [2024-11-09 11:02:49,857 INFO L112 eAbstractionObserver]: Analyzing ICFG max.i [2024-11-09 11:02:49,874 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:02:49,874 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-09 11:02:49,942 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:02:49,949 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;@2e3c9034, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:02:49,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-09 11:02:49,954 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) [2024-11-09 11:02:49,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 11:02:49,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:49,961 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:49,963 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:49,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:49,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1175413910, now seen corresponding path program 1 times [2024-11-09 11:02:49,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:49,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852147628] [2024-11-09 11:02:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:49,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:50,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852147628] [2024-11-09 11:02:50,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852147628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:50,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:02:50,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 11:02:50,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680902683] [2024-11-09 11:02:50,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:50,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:02:50,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:50,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:02:50,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:50,295 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) [2024-11-09 11:02:50,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:50,349 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2024-11-09 11:02:50,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:02:50,353 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 [2024-11-09 11:02:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:50,360 INFO L225 Difference]: With dead ends: 97 [2024-11-09 11:02:50,360 INFO L226 Difference]: Without dead ends: 45 [2024-11-09 11:02:50,363 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 [2024-11-09 11:02:50,369 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 [2024-11-09 11:02:50,370 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] [2024-11-09 11:02:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-09 11:02:50,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-09 11:02:50,397 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) [2024-11-09 11:02:50,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2024-11-09 11:02:50,400 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 10 [2024-11-09 11:02:50,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:50,401 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2024-11-09 11:02:50,401 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) [2024-11-09 11:02:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2024-11-09 11:02:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 11:02:50,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:50,403 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:50,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:02:50,404 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:50,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:50,404 INFO L85 PathProgramCache]: Analyzing trace with hash 743889603, now seen corresponding path program 1 times [2024-11-09 11:02:50,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:50,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460387221] [2024-11-09 11:02:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:50,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:50,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460387221] [2024-11-09 11:02:50,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460387221] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:50,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165915838] [2024-11-09 11:02:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:50,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:50,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:02:50,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:02:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:50,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:02:50,729 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:50,821 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:02:50,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165915838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:50,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:02:50,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 11:02:50,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628401406] [2024-11-09 11:02:50,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:50,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:02:50,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:50,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:02:50,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 11:02:50,826 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) [2024-11-09 11:02:50,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:50,891 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2024-11-09 11:02:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 11:02:50,892 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 [2024-11-09 11:02:50,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:50,894 INFO L225 Difference]: With dead ends: 45 [2024-11-09 11:02:50,894 INFO L226 Difference]: Without dead ends: 44 [2024-11-09 11:02:50,895 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 [2024-11-09 11:02:50,896 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:50,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:02:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-09 11:02:50,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-09 11:02:50,906 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) [2024-11-09 11:02:50,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2024-11-09 11:02:50,908 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 16 [2024-11-09 11:02:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:50,908 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2024-11-09 11:02:50,909 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) [2024-11-09 11:02:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2024-11-09 11:02:50,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 11:02:50,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:50,910 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:50,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 11:02:51,111 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 [2024-11-09 11:02:51,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:51,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash -736586839, now seen corresponding path program 1 times [2024-11-09 11:02:51,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:51,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048910173] [2024-11-09 11:02:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:51,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:51,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:51,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:02:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 11:02:51,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:51,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048910173] [2024-11-09 11:02:51,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048910173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:51,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412381604] [2024-11-09 11:02:51,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:51,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:51,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:51,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 11:02:51,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:02:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:51,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 11:02:51,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 11:02:51,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:02:51,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412381604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:51,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:02:51,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-09 11:02:51,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985583030] [2024-11-09 11:02:51,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:51,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:02:51,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:51,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:02:51,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:02:51,423 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) [2024-11-09 11:02:51,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:51,475 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2024-11-09 11:02:51,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:02:51,476 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 [2024-11-09 11:02:51,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:51,476 INFO L225 Difference]: With dead ends: 44 [2024-11-09 11:02:51,477 INFO L226 Difference]: Without dead ends: 42 [2024-11-09 11:02:51,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 11:02:51,478 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 [2024-11-09 11:02:51,478 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] [2024-11-09 11:02:51,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-09 11:02:51,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2024-11-09 11:02:51,509 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) [2024-11-09 11:02:51,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2024-11-09 11:02:51,511 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 18 [2024-11-09 11:02:51,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:51,515 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2024-11-09 11:02:51,515 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) [2024-11-09 11:02:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2024-11-09 11:02:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 11:02:51,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:51,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:51,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 11:02:51,721 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 [2024-11-09 11:02:51,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:51,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:51,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1585741264, now seen corresponding path program 1 times [2024-11-09 11:02:51,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:51,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864208371] [2024-11-09 11:02:51,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:51,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:51,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:51,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864208371] [2024-11-09 11:02:51,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864208371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:51,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501858016] [2024-11-09 11:02:51,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:51,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:51,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:51,854 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) [2024-11-09 11:02:51,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:02:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:51,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:02:51,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:51,983 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:02:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:52,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501858016] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:02:52,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:02:52,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 11:02:52,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223192645] [2024-11-09 11:02:52,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:02:52,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:02:52,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:52,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:02:52,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:02:52,064 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) [2024-11-09 11:02:52,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:52,129 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2024-11-09 11:02:52,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 11:02:52,130 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 [2024-11-09 11:02:52,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:52,132 INFO L225 Difference]: With dead ends: 61 [2024-11-09 11:02:52,133 INFO L226 Difference]: Without dead ends: 60 [2024-11-09 11:02:52,134 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 [2024-11-09 11:02:52,135 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:52,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 201 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:02:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-11-09 11:02:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-09 11:02:52,150 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) [2024-11-09 11:02:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 72 transitions. [2024-11-09 11:02:52,151 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 72 transitions. Word has length 17 [2024-11-09 11:02:52,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:52,151 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 72 transitions. [2024-11-09 11:02:52,152 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) [2024-11-09 11:02:52,152 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2024-11-09 11:02:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 11:02:52,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:52,152 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:52,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 11:02:52,354 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 [2024-11-09 11:02:52,354 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:52,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:52,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1359355456, now seen corresponding path program 1 times [2024-11-09 11:02:52,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:52,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063587779] [2024-11-09 11:02:52,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:52,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:02:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 11:02:52,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:52,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063587779] [2024-11-09 11:02:52,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063587779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:52,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968955345] [2024-11-09 11:02:52,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:52,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:52,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:52,467 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) [2024-11-09 11:02:52,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 11:02:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 11:02:52,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 11:02:52,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:02:52,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968955345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:52,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:02:52,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 11:02:52,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340278161] [2024-11-09 11:02:52,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:52,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:02:52,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:52,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:02:52,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:52,571 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) [2024-11-09 11:02:52,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:52,605 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2024-11-09 11:02:52,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:02:52,605 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 [2024-11-09 11:02:52,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:52,606 INFO L225 Difference]: With dead ends: 60 [2024-11-09 11:02:52,607 INFO L226 Difference]: Without dead ends: 58 [2024-11-09 11:02:52,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:52,608 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 [2024-11-09 11:02:52,608 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] [2024-11-09 11:02:52,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-11-09 11:02:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-11-09 11:02:52,614 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) [2024-11-09 11:02:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2024-11-09 11:02:52,615 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 19 [2024-11-09 11:02:52,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:52,615 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2024-11-09 11:02:52,616 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) [2024-11-09 11:02:52,616 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2024-11-09 11:02:52,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 11:02:52,616 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:52,617 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:52,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 11:02:52,817 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 [2024-11-09 11:02:52,818 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:52,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:52,818 INFO L85 PathProgramCache]: Analyzing trace with hash -670532734, now seen corresponding path program 1 times [2024-11-09 11:02:52,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:52,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370040325] [2024-11-09 11:02:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:52,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:52,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:02:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 11:02:52,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:52,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370040325] [2024-11-09 11:02:52,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370040325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:52,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393766874] [2024-11-09 11:02:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:52,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:52,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:52,907 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) [2024-11-09 11:02:52,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 11:02:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:52,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 11:02:52,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:52,986 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 11:02:52,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:02:52,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393766874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:52,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:02:52,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 11:02:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851171987] [2024-11-09 11:02:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:52,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:02:52,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:52,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:02:52,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:52,990 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) [2024-11-09 11:02:53,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:53,015 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2024-11-09 11:02:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:02:53,015 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 [2024-11-09 11:02:53,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:53,016 INFO L225 Difference]: With dead ends: 65 [2024-11-09 11:02:53,016 INFO L226 Difference]: Without dead ends: 64 [2024-11-09 11:02:53,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:53,018 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 [2024-11-09 11:02:53,018 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] [2024-11-09 11:02:53,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-09 11:02:53,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2024-11-09 11:02:53,023 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) [2024-11-09 11:02:53,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 75 transitions. [2024-11-09 11:02:53,025 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 75 transitions. Word has length 21 [2024-11-09 11:02:53,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:53,025 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 75 transitions. [2024-11-09 11:02:53,025 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) [2024-11-09 11:02:53,025 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 75 transitions. [2024-11-09 11:02:53,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 11:02:53,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:53,026 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:53,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 11:02:53,226 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 [2024-11-09 11:02:53,227 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:53,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:53,228 INFO L85 PathProgramCache]: Analyzing trace with hash 688321808, now seen corresponding path program 1 times [2024-11-09 11:02:53,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:53,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331201750] [2024-11-09 11:02:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:53,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:02:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 11:02:53,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:53,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331201750] [2024-11-09 11:02:53,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331201750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:53,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436327676] [2024-11-09 11:02:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:53,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:53,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:53,293 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) [2024-11-09 11:02:53,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 11:02:53,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 11:02:53,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 11:02:53,364 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:02:53,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436327676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:53,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:02:53,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 11:02:53,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274942772] [2024-11-09 11:02:53,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:53,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:02:53,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:53,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:02:53,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:53,370 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) [2024-11-09 11:02:53,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:53,397 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2024-11-09 11:02:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:02:53,398 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 [2024-11-09 11:02:53,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:53,399 INFO L225 Difference]: With dead ends: 65 [2024-11-09 11:02:53,399 INFO L226 Difference]: Without dead ends: 64 [2024-11-09 11:02:53,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:53,400 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 [2024-11-09 11:02:53,400 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] [2024-11-09 11:02:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-11-09 11:02:53,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-11-09 11:02:53,410 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) [2024-11-09 11:02:53,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2024-11-09 11:02:53,414 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 22 [2024-11-09 11:02:53,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:53,414 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2024-11-09 11:02:53,414 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) [2024-11-09 11:02:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2024-11-09 11:02:53,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 11:02:53,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:53,415 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] [2024-11-09 11:02:53,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 11:02:53,619 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 [2024-11-09 11:02:53,620 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:53,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:53,624 INFO L85 PathProgramCache]: Analyzing trace with hash 52296594, now seen corresponding path program 1 times [2024-11-09 11:02:53,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:53,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185488909] [2024-11-09 11:02:53,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:53,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:53,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 11:02:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 11:02:53,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:53,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185488909] [2024-11-09 11:02:53,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185488909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:53,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958580021] [2024-11-09 11:02:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:53,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:53,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:53,681 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) [2024-11-09 11:02:53,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 11:02:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:53,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 11:02:53,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 11:02:53,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:02:53,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958580021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:53,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:02:53,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-09 11:02:53,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524172807] [2024-11-09 11:02:53,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:53,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:02:53,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:53,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:02:53,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:53,773 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) [2024-11-09 11:02:53,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:53,809 INFO L93 Difference]: Finished difference Result 122 states and 149 transitions. [2024-11-09 11:02:53,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:02:53,810 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 [2024-11-09 11:02:53,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:53,810 INFO L225 Difference]: With dead ends: 122 [2024-11-09 11:02:53,810 INFO L226 Difference]: Without dead ends: 63 [2024-11-09 11:02:53,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:53,812 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 42 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:53,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 46 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:02:53,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-09 11:02:53,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-09 11:02:53,817 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) [2024-11-09 11:02:53,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-09 11:02:53,818 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 24 [2024-11-09 11:02:53,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:53,818 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-09 11:02:53,818 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) [2024-11-09 11:02:53,819 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-09 11:02:53,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 11:02:53,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:53,820 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] [2024-11-09 11:02:53,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 11:02:54,023 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 [2024-11-09 11:02:54,024 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:54,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:54,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1036412402, now seen corresponding path program 1 times [2024-11-09 11:02:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299950708] [2024-11-09 11:02:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:54,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:54,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 11:02:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:54,091 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 11:02:54,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:54,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299950708] [2024-11-09 11:02:54,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299950708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:54,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:02:54,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 11:02:54,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526501708] [2024-11-09 11:02:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:54,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:02:54,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:02:54,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:54,094 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) [2024-11-09 11:02:54,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:54,128 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2024-11-09 11:02:54,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:02:54,128 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 [2024-11-09 11:02:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:54,129 INFO L225 Difference]: With dead ends: 68 [2024-11-09 11:02:54,129 INFO L226 Difference]: Without dead ends: 66 [2024-11-09 11:02:54,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:54,131 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 [2024-11-09 11:02:54,132 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] [2024-11-09 11:02:54,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-09 11:02:54,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-09 11:02:54,140 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) [2024-11-09 11:02:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2024-11-09 11:02:54,140 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 36 [2024-11-09 11:02:54,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:54,141 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2024-11-09 11:02:54,141 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) [2024-11-09 11:02:54,141 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2024-11-09 11:02:54,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 11:02:54,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:54,144 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:54,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 11:02:54,144 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:54,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:54,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1705253285, now seen corresponding path program 2 times [2024-11-09 11:02:54,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:54,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966035099] [2024-11-09 11:02:54,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:54,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:02:54,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:54,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966035099] [2024-11-09 11:02:54,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966035099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:54,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970794228] [2024-11-09 11:02:54,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:02:54,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:54,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:54,313 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) [2024-11-09 11:02:54,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 11:02:54,372 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 11:02:54,372 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:02:54,373 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:02:54,375 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:54,453 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 11:02:54,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:02:54,528 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 11:02:54,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970794228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:02:54,529 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:02:54,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2024-11-09 11:02:54,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950140587] [2024-11-09 11:02:54,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:02:54,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 11:02:54,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:54,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 11:02:54,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2024-11-09 11:02:54,531 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:02:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:54,728 INFO L93 Difference]: Finished difference Result 73 states and 89 transitions. [2024-11-09 11:02:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 11:02:54,728 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-09 11:02:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:54,729 INFO L225 Difference]: With dead ends: 73 [2024-11-09 11:02:54,729 INFO L226 Difference]: Without dead ends: 68 [2024-11-09 11:02:54,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=537, Unknown=0, NotChecked=0, Total=702 [2024-11-09 11:02:54,731 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 46 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:54,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 124 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:02:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-09 11:02:54,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 38. [2024-11-09 11:02:54,735 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) [2024-11-09 11:02:54,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2024-11-09 11:02:54,736 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 35 [2024-11-09 11:02:54,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:54,736 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2024-11-09 11:02:54,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.5) internal successors, (49), 15 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:02:54,736 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2024-11-09 11:02:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 11:02:54,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:54,737 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] [2024-11-09 11:02:54,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 11:02:54,941 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 [2024-11-09 11:02:54,942 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:54,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:54,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1767831498, now seen corresponding path program 1 times [2024-11-09 11:02:54,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:54,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611382760] [2024-11-09 11:02:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:54,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 11:02:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 11:02:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:55,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611382760] [2024-11-09 11:02:55,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611382760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:55,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285881981] [2024-11-09 11:02:55,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:55,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:55,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:55,042 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) [2024-11-09 11:02:55,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 11:02:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:02:55,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:55,188 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 11:02:55,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:02:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 11:02:55,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285881981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:02:55,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:02:55,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 13 [2024-11-09 11:02:55,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682557571] [2024-11-09 11:02:55,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:02:55,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 11:02:55,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:55,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 11:02:55,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-09 11:02:55,343 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) [2024-11-09 11:02:55,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:55,518 INFO L93 Difference]: Finished difference Result 87 states and 99 transitions. [2024-11-09 11:02:55,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 11:02:55,518 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 [2024-11-09 11:02:55,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:55,519 INFO L225 Difference]: With dead ends: 87 [2024-11-09 11:02:55,519 INFO L226 Difference]: Without dead ends: 53 [2024-11-09 11:02:55,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-09 11:02:55,521 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 53 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:55,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 103 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:02:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-09 11:02:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2024-11-09 11:02:55,525 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) [2024-11-09 11:02:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2024-11-09 11:02:55,526 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 41 [2024-11-09 11:02:55,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:55,526 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2024-11-09 11:02:55,526 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) [2024-11-09 11:02:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2024-11-09 11:02:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 11:02:55,528 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:55,528 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] [2024-11-09 11:02:55,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 11:02:55,732 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 [2024-11-09 11:02:55,733 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:55,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:55,733 INFO L85 PathProgramCache]: Analyzing trace with hash 131890856, now seen corresponding path program 1 times [2024-11-09 11:02:55,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:55,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236401789] [2024-11-09 11:02:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:55,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:55,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 11:02:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-09 11:02:55,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:55,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236401789] [2024-11-09 11:02:55,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236401789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:55,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65377334] [2024-11-09 11:02:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:55,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:55,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:55,818 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) [2024-11-09 11:02:55,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 11:02:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:55,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 11:02:55,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:55,931 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-09 11:02:55,932 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:02:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-09 11:02:55,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65377334] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:02:55,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:02:55,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-09 11:02:55,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123502585] [2024-11-09 11:02:55,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:02:55,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 11:02:55,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:55,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 11:02:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:02:55,986 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) [2024-11-09 11:02:56,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:56,031 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2024-11-09 11:02:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 11:02:56,031 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 [2024-11-09 11:02:56,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:56,033 INFO L225 Difference]: With dead ends: 59 [2024-11-09 11:02:56,034 INFO L226 Difference]: Without dead ends: 57 [2024-11-09 11:02:56,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 11:02:56,034 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:56,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 111 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:02:56,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-09 11:02:56,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-09 11:02:56,046 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) [2024-11-09 11:02:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2024-11-09 11:02:56,046 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 54 [2024-11-09 11:02:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:56,047 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2024-11-09 11:02:56,047 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) [2024-11-09 11:02:56,047 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2024-11-09 11:02:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 11:02:56,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:56,048 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] [2024-11-09 11:02:56,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 11:02:56,249 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 [2024-11-09 11:02:56,249 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:56,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2101903574, now seen corresponding path program 1 times [2024-11-09 11:02:56,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:56,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302629262] [2024-11-09 11:02:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:56,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 11:02:56,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 11:02:56,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302629262] [2024-11-09 11:02:56,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302629262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:56,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:02:56,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 11:02:56,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247337893] [2024-11-09 11:02:56,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:56,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:02:56,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:56,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:02:56,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:56,328 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) [2024-11-09 11:02:56,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:56,350 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2024-11-09 11:02:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:02:56,351 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 [2024-11-09 11:02:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:56,351 INFO L225 Difference]: With dead ends: 57 [2024-11-09 11:02:56,352 INFO L226 Difference]: Without dead ends: 55 [2024-11-09 11:02:56,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:56,352 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 [2024-11-09 11:02:56,353 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] [2024-11-09 11:02:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-09 11:02:56,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-09 11:02:56,357 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) [2024-11-09 11:02:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2024-11-09 11:02:56,357 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 56 [2024-11-09 11:02:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:56,358 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2024-11-09 11:02:56,358 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) [2024-11-09 11:02:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2024-11-09 11:02:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 11:02:56,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:56,359 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] [2024-11-09 11:02:56,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 11:02:56,359 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:56,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2070129386, now seen corresponding path program 1 times [2024-11-09 11:02:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:56,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899317664] [2024-11-09 11:02:56,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:56,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:56,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 11:02:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,425 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-09 11:02:56,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:56,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899317664] [2024-11-09 11:02:56,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899317664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:02:56,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:02:56,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 11:02:56,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250623504] [2024-11-09 11:02:56,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:02:56,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:02:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:56,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:02:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:56,427 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) [2024-11-09 11:02:56,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:56,444 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2024-11-09 11:02:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:02:56,445 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 [2024-11-09 11:02:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:56,445 INFO L225 Difference]: With dead ends: 55 [2024-11-09 11:02:56,445 INFO L226 Difference]: Without dead ends: 54 [2024-11-09 11:02:56,445 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:02:56,446 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 [2024-11-09 11:02:56,446 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] [2024-11-09 11:02:56,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-09 11:02:56,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-11-09 11:02:56,450 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) [2024-11-09 11:02:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2024-11-09 11:02:56,450 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 65 [2024-11-09 11:02:56,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:56,451 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2024-11-09 11:02:56,451 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) [2024-11-09 11:02:56,451 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2024-11-09 11:02:56,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 11:02:56,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:02:56,452 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] [2024-11-09 11:02:56,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 11:02:56,452 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-09 11:02:56,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:02:56,452 INFO L85 PathProgramCache]: Analyzing trace with hash 845564760, now seen corresponding path program 2 times [2024-11-09 11:02:56,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:02:56,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720934226] [2024-11-09 11:02:56,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:02:56,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:02:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-09 11:02:56,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 11:02:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:02:56,532 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 11:02:56,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:02:56,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720934226] [2024-11-09 11:02:56,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720934226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:02:56,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541439386] [2024-11-09 11:02:56,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:02:56,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:02:56,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:02:56,535 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) [2024-11-09 11:02:56,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 11:02:56,636 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 11:02:56,636 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:02:56,636 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 11:02:56,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:02:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 11:02:56,720 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:02:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-09 11:02:56,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541439386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:02:56,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 11:02:56,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-09 11:02:56,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063746323] [2024-11-09 11:02:56,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 11:02:56,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:02:56,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:02:56,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:02:56,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:02:56,782 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) [2024-11-09 11:02:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:02:56,813 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2024-11-09 11:02:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:02:56,814 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 [2024-11-09 11:02:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:02:56,814 INFO L225 Difference]: With dead ends: 54 [2024-11-09 11:02:56,814 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 11:02:56,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 11:02:56,815 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:02:56,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 51 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:02:56,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 11:02:56,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 11:02:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:02:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 11:02:56,816 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2024-11-09 11:02:56,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:02:56,816 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 11:02:56,816 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) [2024-11-09 11:02:56,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 11:02:56,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 11:02:56,821 INFO L782 garLoopResultBuilder]: Registering result SAFE for location maxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-09 11:02:56,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location maxErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-09 11:02:56,822 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-09 11:02:56,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-09 11:02:56,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-09 11:02:56,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-09 11:02:56,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-09 11:02:56,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-09 11:02:56,823 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-09 11:02:56,824 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-09 11:02:56,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 11:02:57,027 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 [2024-11-09 11:02:57,030 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:02:57,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 11:02:57,185 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 11:02:57,204 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 11:02:57 BoogieIcfgContainer [2024-11-09 11:02:57,204 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 11:02:57,205 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 11:02:57,205 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 11:02:57,205 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 11:02:57,205 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:02:49" (3/4) ... [2024-11-09 11:02:57,208 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 11:02:57,211 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure max [2024-11-09 11:02:57,217 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 11:02:57,218 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 11:02:57,218 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 11:02:57,218 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 11:02:57,298 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 11:02:57,298 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 11:02:57,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 11:02:57,299 INFO L158 Benchmark]: Toolchain (without parser) took 8324.93ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 145.5MB in the beginning and 151.6MB in the end (delta: -6.2MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,299 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 11:02:57,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.50ms. Allocated memory is still 182.5MB. Free memory was 145.3MB in the beginning and 141.7MB in the end (delta: 3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.66ms. Allocated memory is still 182.5MB. Free memory was 141.7MB in the beginning and 139.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,300 INFO L158 Benchmark]: Boogie Preprocessor took 43.98ms. Allocated memory is still 182.5MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,300 INFO L158 Benchmark]: RCFGBuilder took 510.73ms. Allocated memory is still 182.5MB. Free memory was 137.5MB in the beginning and 145.0MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,301 INFO L158 Benchmark]: TraceAbstraction took 7354.22ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 143.8MB in the beginning and 156.9MB in the end (delta: -13.1MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,301 INFO L158 Benchmark]: Witness Printer took 93.76ms. Allocated memory is still 230.7MB. Free memory was 156.9MB in the beginning and 151.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 11:02:57,302 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 182.5MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.50ms. Allocated memory is still 182.5MB. Free memory was 145.3MB in the beginning and 141.7MB in the end (delta: 3.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.66ms. Allocated memory is still 182.5MB. Free memory was 141.7MB in the beginning and 139.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.98ms. Allocated memory is still 182.5MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.73ms. Allocated memory is still 182.5MB. Free memory was 137.5MB in the beginning and 145.0MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 7354.22ms. Allocated memory was 182.5MB in the beginning and 230.7MB in the end (delta: 48.2MB). Free memory was 143.8MB in the beginning and 156.9MB in the end (delta: -13.1MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 93.76ms. Allocated memory is still 230.7MB. Free memory was 156.9MB in the beginning and 151.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 7.1s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 1300 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 871 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 631 IncrementalHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 429 mSDtfsCounter, 631 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 664 GetRequests, 564 SyntacticMatches, 4 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=9, InterpolantAutomatonStates: 85, 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, 38 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 841 NumberOfCodeBlocks, 762 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1027 ConstructedInterpolants, 0 QuantifiedInterpolants, 2001 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1233 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 31 InterpolantComputations, 10 PerfectInterpolantSequences, 691/885 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! [2024-11-09 11:02:57,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE