./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf 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-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.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 bc157475d6c321934f68f6b441d83c0582720461 ........................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:21:06,459 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:21:06,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:21:06,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:21:06,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:21:06,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:21:06,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:21:06,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:21:06,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:21:06,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:21:06,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:21:06,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:21:06,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:21:06,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:21:06,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:21:06,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:21:06,530 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:21:06,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:21:06,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:21:06,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:21:06,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:21:06,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:21:06,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:21:06,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:21:06,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:21:06,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:21:06,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:21:06,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:21:06,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:21:06,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:21:06,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:21:06,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:21:06,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:21:06,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:21:06,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:21:06,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:21:06,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:21:06,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:21:06,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:21:06,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:21:06,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:21:06,553 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:21:06,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:21:06,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:21:06,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:21:06,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:21:06,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:21:06,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:21:06,577 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:21:06,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:21:06,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:21:06,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:21:06,577 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:21:06,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:21:06,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:21:06,578 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:21:06,578 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:21:06,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:21:06,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:21:06,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:21:06,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:21:06,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:21:06,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:21:06,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:21:06,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:21:06,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:21:06,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:21:06,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:21:06,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:21:06,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:21:06,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:21:06,592 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc157475d6c321934f68f6b441d83c0582720461 [2021-08-30 22:21:06,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:21:06,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:21:06,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:21:06,899 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:21:06,901 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:21:06,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2021-08-30 22:21:06,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f219c3d09/8abbb49d3c234002b40af3cd28125f44/FLAG5542801f0 [2021-08-30 22:21:07,323 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:21:07,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2021-08-30 22:21:07,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f219c3d09/8abbb49d3c234002b40af3cd28125f44/FLAG5542801f0 [2021-08-30 22:21:07,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f219c3d09/8abbb49d3c234002b40af3cd28125f44 [2021-08-30 22:21:07,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:21:07,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:21:07,358 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:21:07,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:21:07,361 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:21:07,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe3c06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07, skipping insertion in model container [2021-08-30 22:21:07,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:21:07,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:21:07,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:21:07,513 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:21:07,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:21:07,533 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:21:07,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07 WrapperNode [2021-08-30 22:21:07,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:21:07,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:21:07,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:21:07,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:21:07,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:21:07,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:21:07,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:21:07,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:21:07,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:21:07,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:21:07,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:21:07,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:21:07,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (1/1) ... [2021-08-30 22:21:07,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:21:07,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:21:07,642 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) [2021-08-30 22:21:07,668 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 [2021-08-30 22:21:07,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:21:07,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:21:07,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:21:07,782 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:21:07,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:21:07 BoogieIcfgContainer [2021-08-30 22:21:07,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:21:07,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:21:07,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:21:07,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:21:07,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:21:07" (1/3) ... [2021-08-30 22:21:07,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4deaa5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:21:07, skipping insertion in model container [2021-08-30 22:21:07,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:21:07" (2/3) ... [2021-08-30 22:21:07,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4deaa5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:21:07, skipping insertion in model container [2021-08-30 22:21:07,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:21:07" (3/3) ... [2021-08-30 22:21:07,792 INFO L111 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2021-08-30 22:21:07,799 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:21:07,799 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-30 22:21:07,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:21:07,855 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, mConcurrency=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 [2021-08-30 22:21:07,855 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-30 22:21:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:21:07,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:21:07,872 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:21:07,872 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:21:07,873 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:21:07,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:21:07,878 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2021-08-30 22:21:07,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:21:07,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650983095] [2021-08-30 22:21:07,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:21:07,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:21:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:21:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:21:08,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:21:08,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650983095] [2021-08-30 22:21:08,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650983095] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:21:08,058 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:21:08,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:21:08,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297392465] [2021-08-30 22:21:08,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:21:08,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:21:08,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:21:08,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:08,107 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2021-08-30 22:21:08,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:21:08,166 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-08-30 22:21:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:21:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2021-08-30 22:21:08,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:21:08,191 INFO L225 Difference]: With dead ends: 21 [2021-08-30 22:21:08,191 INFO L226 Difference]: Without dead ends: 12 [2021-08-30 22:21:08,194 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.40ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:08,196 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.62ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.20ms IncrementalHoareTripleChecker+Time [2021-08-30 22:21:08,197 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 28 Unknown, 0 Unchecked, 0.62ms Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 46.20ms Time] [2021-08-30 22:21:08,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-30 22:21:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-08-30 22:21:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 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) [2021-08-30 22:21:08,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-08-30 22:21:08,219 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2021-08-30 22:21:08,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:21:08,220 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-08-30 22:21:08,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2021-08-30 22:21:08,220 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-08-30 22:21:08,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:21:08,221 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:21:08,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:21:08,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:21:08,222 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:21:08,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:21:08,223 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-08-30 22:21:08,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:21:08,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100659218] [2021-08-30 22:21:08,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:21:08,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:21:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:21:08,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:21:08,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:21:08,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100659218] [2021-08-30 22:21:08,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100659218] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:21:08,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:21:08,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:21:08,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448224789] [2021-08-30 22:21:08,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:21:08,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:21:08,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:21:08,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:21:08,269 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. 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) [2021-08-30 22:21:08,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:21:08,316 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-08-30 22:21:08,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:21:08,317 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 [2021-08-30 22:21:08,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:21:08,317 INFO L225 Difference]: With dead ends: 13 [2021-08-30 22:21:08,317 INFO L226 Difference]: Without dead ends: 12 [2021-08-30 22:21:08,318 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.44ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:21:08,319 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.90ms IncrementalHoareTripleChecker+Time [2021-08-30 22:21:08,320 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 32.90ms Time] [2021-08-30 22:21:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-30 22:21:08,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2021-08-30 22:21:08,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 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) [2021-08-30 22:21:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-08-30 22:21:08,323 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 4 [2021-08-30 22:21:08,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:21:08,323 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-08-30 22:21:08,323 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) [2021-08-30 22:21:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-08-30 22:21:08,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:21:08,324 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:21:08,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:21:08,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:21:08,325 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)] === [2021-08-30 22:21:08,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:21:08,325 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2021-08-30 22:21:08,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:21:08,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797910359] [2021-08-30 22:21:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:21:08,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:21:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:21:08,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:21:08,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:21:08,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797910359] [2021-08-30 22:21:08,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797910359] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:21:08,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:21:08,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-30 22:21:08,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768613288] [2021-08-30 22:21:08,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:21:08,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:21:08,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:21:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:08,358 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:21:08,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:21:08,385 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2021-08-30 22:21:08,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:21:08,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-30 22:21:08,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:21:08,389 INFO L225 Difference]: With dead ends: 10 [2021-08-30 22:21:08,389 INFO L226 Difference]: Without dead ends: 9 [2021-08-30 22:21:08,390 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:21:08,391 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.84ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.77ms IncrementalHoareTripleChecker+Time [2021-08-30 22:21:08,393 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.84ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 22.77ms Time] [2021-08-30 22:21:08,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-30 22:21:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-30 22:21:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-08-30 22:21:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-08-30 22:21:08,399 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2021-08-30 22:21:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:21:08,401 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-08-30 22:21:08,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:21:08,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-08-30 22:21:08,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:21:08,402 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:21:08,402 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:21:08,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:21:08,403 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:21:08,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:21:08,404 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-08-30 22:21:08,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:21:08,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649800183] [2021-08-30 22:21:08,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:21:08,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:21:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:21:08,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:21:08,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:21:08,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649800183] [2021-08-30 22:21:08,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649800183] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:21:08,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:21:08,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:21:08,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666356908] [2021-08-30 22:21:08,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:21:08,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:21:08,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:21:08,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:21:08,480 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:21:08,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:21:08,527 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2021-08-30 22:21:08,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:21:08,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-30 22:21:08,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:21:08,528 INFO L225 Difference]: With dead ends: 9 [2021-08-30 22:21:08,528 INFO L226 Difference]: Without dead ends: 0 [2021-08-30 22:21:08,529 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.87ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:21:08,530 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.57ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.39ms IncrementalHoareTripleChecker+Time [2021-08-30 22:21:08,530 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 21 Unknown, 0 Unchecked, 0.57ms Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 37.39ms Time] [2021-08-30 22:21:08,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-30 22:21:08,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-30 22:21:08,531 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) [2021-08-30 22:21:08,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-30 22:21:08,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-08-30 22:21:08,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:21:08,532 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-30 22:21:08,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:21:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-30 22:21:08,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-30 22:21:08,534 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-08-30 22:21:08,535 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-08-30 22:21:08,535 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-08-30 22:21:08,535 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-08-30 22:21:08,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:21:08,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-30 22:21:08,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:21:08,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:21:08,550 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-08-30 22:21:08,551 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-30 22:21:08,551 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-08-30 22:21:08,551 INFO L861 garLoopResultBuilder]: At program point L27(lines 13 28) the Hoare annotation is: true [2021-08-30 22:21:08,551 INFO L854 garLoopResultBuilder]: At program point L23-1(lines 17 26) the Hoare annotation is: (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) [2021-08-30 22:21:08,551 INFO L858 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2021-08-30 22:21:08,551 INFO L858 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2021-08-30 22:21:08,552 INFO L858 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-08-30 22:21:08,552 INFO L858 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2021-08-30 22:21:08,552 INFO L858 garLoopResultBuilder]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2021-08-30 22:21:08,552 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2021-08-30 22:21:08,553 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2021-08-30 22:21:08,554 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-30 22:21:08,554 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-30 22:21:08,554 INFO L858 garLoopResultBuilder]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-08-30 22:21:08,554 INFO L858 garLoopResultBuilder]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2021-08-30 22:21:08,558 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:21:08,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:21:08 BoogieIcfgContainer [2021-08-30 22:21:08,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:21:08,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:21:08,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:21:08,570 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:21:08,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:21:07" (3/4) ... [2021-08-30 22:21:08,572 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-30 22:21:08,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-30 22:21:08,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-30 22:21:08,602 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:21:08,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:21:08,603 INFO L158 Benchmark]: Toolchain (without parser) took 1249.60ms. Allocated memory is still 67.1MB. Free memory was 50.4MB in the beginning and 26.2MB in the end (delta: 24.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-08-30 22:21:08,603 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:21:08,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.80ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 41.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:21:08,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.72ms. Allocated memory is still 67.1MB. Free memory was 41.6MB in the beginning and 51.5MB in the end (delta: -9.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2021-08-30 22:21:08,604 INFO L158 Benchmark]: Boogie Preprocessor took 17.30ms. Allocated memory is still 67.1MB. Free memory was 51.5MB in the beginning and 50.8MB in the end (delta: 774.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:21:08,605 INFO L158 Benchmark]: RCFGBuilder took 171.13ms. Allocated memory is still 67.1MB. Free memory was 50.5MB in the beginning and 43.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:21:08,605 INFO L158 Benchmark]: TraceAbstraction took 782.76ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 28.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-08-30 22:21:08,605 INFO L158 Benchmark]: Witness Printer took 33.35ms. Allocated memory is still 67.1MB. Free memory was 28.3MB in the beginning and 26.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:21:08,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 49.8MB in the end (delta: 54.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.80ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 41.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.72ms. Allocated memory is still 67.1MB. Free memory was 41.6MB in the beginning and 51.5MB in the end (delta: -9.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.30ms. Allocated memory is still 67.1MB. Free memory was 51.5MB in the beginning and 50.8MB in the end (delta: 774.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 171.13ms. Allocated memory is still 67.1MB. Free memory was 50.5MB in the beginning and 43.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 782.76ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 28.7MB in the end (delta: 14.1MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 33.35ms. Allocated memory is still 67.1MB. Free memory was 28.3MB in the beginning and 26.2MB in the end (delta: 2.2MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 713.76ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 8.91ms, AutomataDifference: 283.35ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 13.94ms, InitialAbstractionConstructionTime: 9.30ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 139.26ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 118.47ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 0 mSDtfsCounter, 85 mSolverCounterSat, 2.49ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.73ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 19.10ms AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 3.19ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2.24ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.82ms SsaConstructionTime, 57.36ms SatisfiabilityAnalysisTime, 176.91ms InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 RESULT: Ultimate proved your program to be correct! [2021-08-30 22:21:08,647 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...