./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 08:44:26,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:44:26,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:44:26,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:44:26,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:44:26,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:44:26,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:44:26,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:44:26,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:44:26,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:44:26,406 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:44:26,407 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:44:26,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:44:26,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:44:26,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:44:26,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:44:26,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:44:26,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:44:26,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:44:26,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:44:26,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:44:26,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:44:26,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:44:26,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:44:26,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:44:26,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:44:26,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:44:26,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:44:26,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:44:26,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:44:26,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:44:26,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:44:26,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:44:26,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:44:26,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:44:26,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:44:26,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:44:26,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:44:26,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:44:26,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:44:26,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:44:26,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-28 08:44:26,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:44:26,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:44:26,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:44:26,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:44:26,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:44:26,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:44:26,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:44:26,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:44:26,442 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:44:26,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:44:26,443 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:44:26,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:44:26,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:44:26,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:44:26,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:44:26,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:44:26,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:44:26,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:44:26,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:44:26,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:44:26,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:44:26,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:44:26,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:44:26,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:44:26,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d6de59cf2b416f7340c8c861064933450d6034e9a050a1b7fe5107e8fa4152f [2021-12-28 08:44:26,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:44:26,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:44:26,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:44:26,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:44:26,697 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:44:26,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-12-28 08:44:26,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2c9d283c/e92b73d6f4354f1496aec8705a212eac/FLAG870d0fbae [2021-12-28 08:44:27,105 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:44:27,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/java_LogBuiltIn.c [2021-12-28 08:44:27,109 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2c9d283c/e92b73d6f4354f1496aec8705a212eac/FLAG870d0fbae [2021-12-28 08:44:27,119 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2c9d283c/e92b73d6f4354f1496aec8705a212eac [2021-12-28 08:44:27,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:44:27,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:44:27,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:44:27,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:44:27,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:44:27,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51528d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27, skipping insertion in model container [2021-12-28 08:44:27,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:44:27,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:44:27,247 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:44:27,249 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:44:27,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:44:27,269 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:44:27,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27 WrapperNode [2021-12-28 08:44:27,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:44:27,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:44:27,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:44:27,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:44:27,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,298 INFO L137 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2021-12-28 08:44:27,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:44:27,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:44:27,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:44:27,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:44:27,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:44:27,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:44:27,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:44:27,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:44:27,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (1/1) ... [2021-12-28 08:44:27,319 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:44:27,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:27,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 08:44:27,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 08:44:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:44:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:44:27,403 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:44:27,405 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:44:27,508 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:44:27,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:44:27,512 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 08:44:27,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:27 BoogieIcfgContainer [2021-12-28 08:44:27,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:44:27,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:44:27,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:44:27,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:44:27,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:44:27" (1/3) ... [2021-12-28 08:44:27,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b7f696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:44:27, skipping insertion in model container [2021-12-28 08:44:27,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:27" (2/3) ... [2021-12-28 08:44:27,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b7f696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:44:27, skipping insertion in model container [2021-12-28 08:44:27,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:27" (3/3) ... [2021-12-28 08:44:27,519 INFO L111 eAbstractionObserver]: Analyzing ICFG java_LogBuiltIn.c [2021-12-28 08:44:27,521 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:44:27,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-28 08:44:27,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:44:27,551 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 08:44:27,551 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-28 08:44:27,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-28 08:44:27,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:27,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-28 08:44:27,562 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:27,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:27,568 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2021-12-28 08:44:27,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:27,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192107903] [2021-12-28 08:44:27,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:27,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:27,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:27,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192107903] [2021-12-28 08:44:27,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192107903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:27,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:27,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:27,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577038997] [2021-12-28 08:44:27,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:27,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:27,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:27,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:27,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:27,775 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:27,811 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-12-28 08:44:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:44:27,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-12-28 08:44:27,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:27,819 INFO L225 Difference]: With dead ends: 21 [2021-12-28 08:44:27,819 INFO L226 Difference]: Without dead ends: 9 [2021-12-28 08:44:27,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:27,823 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:27,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:27,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-12-28 08:44:27,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-28 08:44:27,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-12-28 08:44:27,845 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2021-12-28 08:44:27,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:27,846 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-12-28 08:44:27,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,847 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-12-28 08:44:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 08:44:27,847 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:27,847 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 08:44:27,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:44:27,848 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:27,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:27,850 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2021-12-28 08:44:27,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:27,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287718838] [2021-12-28 08:44:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:27,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:27,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:27,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287718838] [2021-12-28 08:44:27,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287718838] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:27,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:27,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:27,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699404182] [2021-12-28 08:44:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:27,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:27,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:27,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:27,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:27,910 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:27,935 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-12-28 08:44:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-12-28 08:44:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:27,936 INFO L225 Difference]: With dead ends: 16 [2021-12-28 08:44:27,937 INFO L226 Difference]: Without dead ends: 15 [2021-12-28 08:44:27,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:27,938 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:27,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-12-28 08:44:27,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-12-28 08:44:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-12-28 08:44:27,943 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2021-12-28 08:44:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:27,944 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-12-28 08:44:27,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-12-28 08:44:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-28 08:44:27,945 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:27,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:27,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:44:27,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:27,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:27,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2021-12-28 08:44:27,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:27,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855752081] [2021-12-28 08:44:27,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:27,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:27,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:27,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855752081] [2021-12-28 08:44:27,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855752081] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:27,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:27,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:27,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538114427] [2021-12-28 08:44:27,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:27,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:27,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:27,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:27,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:27,987 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:28,007 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-12-28 08:44:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:44:28,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-28 08:44:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:28,008 INFO L225 Difference]: With dead ends: 13 [2021-12-28 08:44:28,008 INFO L226 Difference]: Without dead ends: 12 [2021-12-28 08:44:28,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:28,009 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:28,009 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-28 08:44:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-28 08:44:28,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-12-28 08:44:28,013 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 7 [2021-12-28 08:44:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:28,013 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-12-28 08:44:28,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-12-28 08:44:28,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-28 08:44:28,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:28,014 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:28,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:44:28,014 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:28,015 INFO L85 PathProgramCache]: Analyzing trace with hash -852139857, now seen corresponding path program 1 times [2021-12-28 08:44:28,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:28,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889670208] [2021-12-28 08:44:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:28,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:28,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:28,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889670208] [2021-12-28 08:44:28,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889670208] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:28,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674681597] [2021-12-28 08:44:28,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:28,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:28,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:28,068 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) [2021-12-28 08:44:28,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 08:44:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-28 08:44:28,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:28,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:28,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674681597] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:28,229 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:28,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-28 08:44:28,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196584567] [2021-12-28 08:44:28,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:28,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 08:44:28,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:28,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 08:44:28,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 08:44:28,231 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:28,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:28,278 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-12-28 08:44:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 08:44:28,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-28 08:44:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:28,279 INFO L225 Difference]: With dead ends: 29 [2021-12-28 08:44:28,279 INFO L226 Difference]: Without dead ends: 28 [2021-12-28 08:44:28,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:28,280 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 20 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:28,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 24 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:28,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-28 08:44:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-12-28 08:44:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-12-28 08:44:28,284 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 11 [2021-12-28 08:44:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:28,284 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-12-28 08:44:28,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:28,284 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-12-28 08:44:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-28 08:44:28,295 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:28,295 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1] [2021-12-28 08:44:28,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 08:44:28,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:28,497 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash 454809670, now seen corresponding path program 2 times [2021-12-28 08:44:28,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:28,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902643283] [2021-12-28 08:44:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:28,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:28,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:28,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902643283] [2021-12-28 08:44:28,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902643283] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:28,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194912212] [2021-12-28 08:44:28,658 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:28,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:28,659 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) [2021-12-28 08:44:28,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 08:44:28,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:28,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:28,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-28 08:44:28,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:28,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:29,020 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:29,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194912212] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:29,020 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:29,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-12-28 08:44:29,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204802600] [2021-12-28 08:44:29,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:29,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-28 08:44:29,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-28 08:44:29,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-12-28 08:44:29,023 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 22 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 22 states have internal predecessors, (51), 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) [2021-12-28 08:44:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:29,152 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2021-12-28 08:44:29,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-28 08:44:29,152 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 22 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-12-28 08:44:29,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:29,153 INFO L225 Difference]: With dead ends: 59 [2021-12-28 08:44:29,153 INFO L226 Difference]: Without dead ends: 58 [2021-12-28 08:44:29,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2021-12-28 08:44:29,155 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 48 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:29,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 43 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-12-28 08:44:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2021-12-28 08:44:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.0178571428571428) internal successors, (57), 56 states have internal predecessors, (57), 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) [2021-12-28 08:44:29,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-12-28 08:44:29,161 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 26 [2021-12-28 08:44:29,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:29,161 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-12-28 08:44:29,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 22 states have internal predecessors, (51), 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) [2021-12-28 08:44:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-12-28 08:44:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-28 08:44:29,162 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:29,163 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1] [2021-12-28 08:44:29,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:29,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:29,386 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:29,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1634514214, now seen corresponding path program 3 times [2021-12-28 08:44:29,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:29,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576837600] [2021-12-28 08:44:29,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:29,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,722 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:29,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:29,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576837600] [2021-12-28 08:44:29,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576837600] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:29,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463582877] [2021-12-28 08:44:29,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:29,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:29,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:29,724 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) [2021-12-28 08:44:29,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 08:44:29,778 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:44:29,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:29,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-28 08:44:29,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:29,899 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:29,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:30,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463582877] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:30,370 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:30,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2021-12-28 08:44:30,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401346930] [2021-12-28 08:44:30,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:30,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-28 08:44:30,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-28 08:44:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2021-12-28 08:44:30,375 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 46 states, 45 states have (on average 2.466666666666667) internal successors, (111), 46 states have internal predecessors, (111), 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) [2021-12-28 08:44:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:30,743 INFO L93 Difference]: Finished difference Result 119 states and 130 transitions. [2021-12-28 08:44:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-28 08:44:30,745 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.466666666666667) internal successors, (111), 46 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-12-28 08:44:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:30,746 INFO L225 Difference]: With dead ends: 119 [2021-12-28 08:44:30,746 INFO L226 Difference]: Without dead ends: 118 [2021-12-28 08:44:30,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2021-12-28 08:44:30,747 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 130 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:30,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 73 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:30,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-28 08:44:30,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2021-12-28 08:44:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.0086206896551724) internal successors, (117), 116 states have internal predecessors, (117), 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) [2021-12-28 08:44:30,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2021-12-28 08:44:30,765 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 56 [2021-12-28 08:44:30,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:30,768 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2021-12-28 08:44:30,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.466666666666667) internal successors, (111), 46 states have internal predecessors, (111), 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) [2021-12-28 08:44:30,768 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2021-12-28 08:44:30,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-28 08:44:30,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:30,772 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1] [2021-12-28 08:44:30,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:30,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:30,987 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:30,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:30,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1095821594, now seen corresponding path program 4 times [2021-12-28 08:44:30,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:30,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52115253] [2021-12-28 08:44:30,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:30,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:31,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:31,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52115253] [2021-12-28 08:44:31,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52115253] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:31,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730865981] [2021-12-28 08:44:31,730 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:44:31,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:31,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:31,732 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) [2021-12-28 08:44:31,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 08:44:31,792 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:44:31,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:31,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-28 08:44:31,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:32,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:33,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730865981] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:33,375 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:33,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2021-12-28 08:44:33,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423261913] [2021-12-28 08:44:33,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:33,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-12-28 08:44:33,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:33,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-12-28 08:44:33,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2021-12-28 08:44:33,379 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand has 94 states, 93 states have (on average 2.4838709677419355) internal successors, (231), 94 states have internal predecessors, (231), 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) [2021-12-28 08:44:34,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:34,699 INFO L93 Difference]: Finished difference Result 239 states and 262 transitions. [2021-12-28 08:44:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-12-28 08:44:34,700 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4838709677419355) internal successors, (231), 94 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-12-28 08:44:34,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:34,703 INFO L225 Difference]: With dead ends: 239 [2021-12-28 08:44:34,704 INFO L226 Difference]: Without dead ends: 238 [2021-12-28 08:44:34,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2021-12-28 08:44:34,711 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 326 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:34,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 121 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:34,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-12-28 08:44:34,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 237. [2021-12-28 08:44:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 236 states have (on average 1.0042372881355932) internal successors, (237), 236 states have internal predecessors, (237), 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) [2021-12-28 08:44:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 237 transitions. [2021-12-28 08:44:34,722 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 237 transitions. Word has length 116 [2021-12-28 08:44:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:34,722 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 237 transitions. [2021-12-28 08:44:34,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4838709677419355) internal successors, (231), 94 states have internal predecessors, (231), 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) [2021-12-28 08:44:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 237 transitions. [2021-12-28 08:44:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-12-28 08:44:34,725 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:34,725 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1] [2021-12-28 08:44:34,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:34,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:34,942 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-12-28 08:44:34,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:34,942 INFO L85 PathProgramCache]: Analyzing trace with hash -893486490, now seen corresponding path program 5 times [2021-12-28 08:44:34,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:34,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546830354] [2021-12-28 08:44:34,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:34,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 4711 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2021-12-28 08:44:37,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:37,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546830354] [2021-12-28 08:44:37,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546830354] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:37,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:37,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2021-12-28 08:44:37,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025433643] [2021-12-28 08:44:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:37,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-12-28 08:44:37,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:37,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-12-28 08:44:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-12-28 08:44:37,356 INFO L87 Difference]: Start difference. First operand 237 states and 237 transitions. Second operand has 63 states, 63 states have (on average 2.5238095238095237) internal successors, (159), 63 states have internal predecessors, (159), 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) [2021-12-28 08:44:37,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:37,521 INFO L93 Difference]: Finished difference Result 237 states and 237 transitions. [2021-12-28 08:44:37,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-12-28 08:44:37,528 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.5238095238095237) internal successors, (159), 63 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-12-28 08:44:37,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:37,529 INFO L225 Difference]: With dead ends: 237 [2021-12-28 08:44:37,529 INFO L226 Difference]: Without dead ends: 0 [2021-12-28 08:44:37,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 2 SyntacticMatches, 30 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1488, Invalid=2418, Unknown=0, NotChecked=0, Total=3906 [2021-12-28 08:44:37,531 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 62 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:37,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 395 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:37,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-28 08:44:37,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-28 08:44:37,531 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) [2021-12-28 08:44:37,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-28 08:44:37,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 236 [2021-12-28 08:44:37,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:37,531 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 08:44:37,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.5238095238095237) internal successors, (159), 63 states have internal predecessors, (159), 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) [2021-12-28 08:44:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-28 08:44:37,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-28 08:44:37,533 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-12-28 08:44:37,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-12-28 08:44:37,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-12-28 08:44:37,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-12-28 08:44:37,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 08:44:37,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-28 08:44:37,723 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-12-28 08:44:37,723 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-28 08:44:37,724 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-12-28 08:44:37,724 INFO L854 garLoopResultBuilder]: At program point L19(lines 18 20) the Hoare annotation is: (<= |ULTIMATE.start_mlog_~x#1| 2147483647) [2021-12-28 08:44:37,724 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-12-28 08:44:37,724 INFO L858 garLoopResultBuilder]: For program point L9-1(line 9) no Hoare annotation was computed. [2021-12-28 08:44:37,725 INFO L854 garLoopResultBuilder]: At program point L7-2(lines 7 12) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_mlog_~res~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 0) (<= |ULTIMATE.start_mlog_~x#1| 2147483647)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 65535) (<= |ULTIMATE.start_mlog_~res~0#1| 15)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 2097151) (<= |ULTIMATE.start_mlog_~res~0#1| 10)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 13) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 262143)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 9) (<= |ULTIMATE.start_mlog_~x#1| 4194303)) (and (<= |ULTIMATE.start_mlog_~x#1| 16383) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 17)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 7) (<= |ULTIMATE.start_mlog_~res~0#1| 2147483629)) (and (<= |ULTIMATE.start_mlog_~x#1| 511) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 22)) (and (<= |ULTIMATE.start_mlog_~x#1| 131071) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 14)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 32767) (<= |ULTIMATE.start_mlog_~res~0#1| 16)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 2147483628) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 15)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 127) (<= |ULTIMATE.start_mlog_~res~0#1| 2147483625)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 1023) (<= |ULTIMATE.start_mlog_~res~0#1| 21)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 8) (<= |ULTIMATE.start_mlog_~x#1| 8388607)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 2047) (<= |ULTIMATE.start_mlog_~res~0#1| 20)) (and (<= |ULTIMATE.start_mlog_~x#1| 4095) .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 19)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 31) (<= |ULTIMATE.start_mlog_~res~0#1| 2147483627)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 255) (<= |ULTIMATE.start_mlog_~res~0#1| 2147483624)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 2147483631) (<= |ULTIMATE.start_mlog_~x#1| 1)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 268435455) (<= |ULTIMATE.start_mlog_~res~0#1| 3)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 12) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 524287)) (and (<= |ULTIMATE.start_mlog_~x#1| 1048575) (<= |ULTIMATE.start_mlog_~res~0#1| 11) .cse0) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 16777215) (<= |ULTIMATE.start_mlog_~res~0#1| 7)) (and (<= |ULTIMATE.start_mlog_~res~0#1| 18) .cse0 (<= |ULTIMATE.start_mlog_~x#1| 8191)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 5) (<= |ULTIMATE.start_mlog_~x#1| 67108863)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 4) (<= |ULTIMATE.start_mlog_~x#1| 134217727)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 3) (<= |ULTIMATE.start_mlog_~res~0#1| 2147483630)) (and .cse0 (<= |ULTIMATE.start_mlog_~x#1| 536870911) (<= |ULTIMATE.start_mlog_~res~0#1| 2)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 6) (<= |ULTIMATE.start_mlog_~x#1| 33554431)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 1) (<= |ULTIMATE.start_mlog_~x#1| 1073741823)) (and .cse0 (<= |ULTIMATE.start_mlog_~res~0#1| 2147483626) (<= |ULTIMATE.start_mlog_~x#1| 63)))) [2021-12-28 08:44:37,725 INFO L858 garLoopResultBuilder]: For program point L7-3(lines 7 12) no Hoare annotation was computed. [2021-12-28 08:44:37,725 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-28 08:44:37,725 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 9) no Hoare annotation was computed. [2021-12-28 08:44:37,725 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 10) no Hoare annotation was computed. [2021-12-28 08:44:37,725 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-28 08:44:37,726 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-28 08:44:37,726 INFO L854 garLoopResultBuilder]: At program point L14(lines 3 16) the Hoare annotation is: (<= |ULTIMATE.start_mlog_~x#1| 2147483647) [2021-12-28 08:44:37,726 INFO L858 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-12-28 08:44:37,726 INFO L858 garLoopResultBuilder]: For program point L10-1(line 10) no Hoare annotation was computed. [2021-12-28 08:44:37,728 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2021-12-28 08:44:37,729 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-28 08:44:37,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 08:44:37 BoogieIcfgContainer [2021-12-28 08:44:37,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-28 08:44:37,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 08:44:37,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 08:44:37,745 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 08:44:37,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:27" (3/4) ... [2021-12-28 08:44:37,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-28 08:44:37,753 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-28 08:44:37,754 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-28 08:44:37,754 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-28 08:44:37,773 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-28 08:44:37,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 08:44:37,774 INFO L158 Benchmark]: Toolchain (without parser) took 10650.74ms. Allocated memory was 62.9MB in the beginning and 161.5MB in the end (delta: 98.6MB). Free memory was 44.5MB in the beginning and 124.9MB in the end (delta: -80.3MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-12-28 08:44:37,775 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 08:44:37,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 144.14ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 35.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 08:44:37,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.19ms. Allocated memory is still 62.9MB. Free memory was 35.5MB in the beginning and 46.8MB in the end (delta: -11.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 08:44:37,775 INFO L158 Benchmark]: Boogie Preprocessor took 13.01ms. Allocated memory is still 62.9MB. Free memory was 46.8MB in the beginning and 45.9MB in the end (delta: 956.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 08:44:37,776 INFO L158 Benchmark]: RCFGBuilder took 200.95ms. Allocated memory is still 62.9MB. Free memory was 45.9MB in the beginning and 37.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 08:44:37,776 INFO L158 Benchmark]: TraceAbstraction took 10228.98ms. Allocated memory was 62.9MB in the beginning and 161.5MB in the end (delta: 98.6MB). Free memory was 37.0MB in the beginning and 127.0MB in the end (delta: -89.9MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2021-12-28 08:44:37,776 INFO L158 Benchmark]: Witness Printer took 29.19ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 08:44:37,777 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 144.14ms. Allocated memory is still 62.9MB. Free memory was 44.4MB in the beginning and 35.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.19ms. Allocated memory is still 62.9MB. Free memory was 35.5MB in the beginning and 46.8MB in the end (delta: -11.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.01ms. Allocated memory is still 62.9MB. Free memory was 46.8MB in the beginning and 45.9MB in the end (delta: 956.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 200.95ms. Allocated memory is still 62.9MB. Free memory was 45.9MB in the beginning and 37.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10228.98ms. Allocated memory was 62.9MB in the beginning and 161.5MB in the end (delta: 98.6MB). Free memory was 37.0MB in the beginning and 127.0MB in the end (delta: -89.9MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Witness Printer took 29.19ms. Allocated memory is still 161.5MB. Free memory was 127.0MB in the beginning and 124.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 9]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 8, TraceHistogramMax: 47, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 607 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 607 mSDsluCounter, 697 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 596 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 990 IncrementalHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 101 mSDtfsCounter, 990 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 682 GetRequests, 337 SyntacticMatches, 30 SemanticMatches, 315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5473 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=7, InterpolantAutomatonStates: 252, 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, 8 MinimizatonAttempts, 6 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 36 NumberOfFragments, 317 HoareAnnotationTreeSize, 3 FomulaSimplifications, 144 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 671 NumberOfCodeBlocks, 671 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 864 ConstructedInterpolants, 0 QuantifiedInterpolants, 2638 SizeOfPredicates, 41 NumberOfNonLiveVariables, 483 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 16 InterpolantComputations, 4 PerfectInterpolantSequences, 5359/10033 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 4 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((0 <= res && res <= 0) && x <= 2147483647) || ((0 <= res && x <= 65535) && res <= 15)) || ((0 <= res && x <= 2097151) && res <= 10)) || ((res <= 13 && 0 <= res) && x <= 262143)) || ((0 <= res && res <= 9) && x <= 4194303)) || ((x <= 16383 && 0 <= res) && res <= 17)) || ((0 <= res && x <= 7) && res <= 2147483629)) || ((x <= 511 && 0 <= res) && res <= 22)) || ((x <= 131071 && 0 <= res) && res <= 14)) || ((0 <= res && x <= 32767) && res <= 16)) || ((res <= 2147483628 && 0 <= res) && x <= 15)) || ((0 <= res && x <= 127) && res <= 2147483625)) || ((0 <= res && x <= 1023) && res <= 21)) || ((0 <= res && res <= 8) && x <= 8388607)) || ((0 <= res && x <= 2047) && res <= 20)) || ((x <= 4095 && 0 <= res) && res <= 19)) || ((0 <= res && x <= 31) && res <= 2147483627)) || ((0 <= res && x <= 255) && res <= 2147483624)) || ((0 <= res && res <= 2147483631) && x <= 1)) || ((0 <= res && x <= 268435455) && res <= 3)) || ((res <= 12 && 0 <= res) && x <= 524287)) || ((x <= 1048575 && res <= 11) && 0 <= res)) || ((0 <= res && x <= 16777215) && res <= 7)) || ((res <= 18 && 0 <= res) && x <= 8191)) || ((0 <= res && res <= 5) && x <= 67108863)) || ((0 <= res && res <= 4) && x <= 134217727)) || ((0 <= res && x <= 3) && res <= 2147483630)) || ((0 <= res && x <= 536870911) && res <= 2)) || ((0 <= res && res <= 6) && x <= 33554431)) || ((0 <= res && res <= 1) && x <= 1073741823)) || ((0 <= res && res <= 2147483626) && x <= 63) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: x <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-12-28 08:44:37,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE