./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/CookSeeZuleger-TACAS2013-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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:51:46,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:51:46,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:51:46,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:51:46,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:51:46,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:51:46,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:51:46,041 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:51:46,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:51:46,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:51:46,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:51:46,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:51:46,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:51:46,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:51:46,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:51:46,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:51:46,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:51:46,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:51:46,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:51:46,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:51:46,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:51:46,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:51:46,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:51:46,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:51:46,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:51:46,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:51:46,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:51:46,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:51:46,083 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:51:46,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:51:46,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:51:46,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:51:46,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:51:46,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:51:46,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:51:46,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:51:46,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:51:46,090 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:51:46,090 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:51:46,091 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:51:46,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:51:46,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:51:46,120 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:51:46,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:51:46,122 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:51:46,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:51:46,123 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:51:46,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:51:46,123 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:51:46,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:51:46,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:51:46,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:51:46,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:51:46,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:51:46,125 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:51:46,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:51:46,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:51:46,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:51:46,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:51:46,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:51:46,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:51:46,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:51:46,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:51:46,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:51:46,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:51:46,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:51:46,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:51:46,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:51:46,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:51:46,129 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2019-11-28 02:51:46,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:51:46,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:51:46,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:51:46,450 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:51:46,450 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:51:46,451 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-11-28 02:51:46,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480101cce/f96799885a194376849c9eaf52e3b2f9/FLAGca3e0a14c [2019-11-28 02:51:46,998 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:51:46,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-11-28 02:51:47,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480101cce/f96799885a194376849c9eaf52e3b2f9/FLAGca3e0a14c [2019-11-28 02:51:47,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/480101cce/f96799885a194376849c9eaf52e3b2f9 [2019-11-28 02:51:47,409 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:51:47,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:51:47,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:51:47,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:51:47,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:51:47,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a64cec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47, skipping insertion in model container [2019-11-28 02:51:47,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:51:47,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:51:47,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:51:47,697 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:51:47,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:51:47,727 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:51:47,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47 WrapperNode [2019-11-28 02:51:47,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:51:47,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:51:47,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:51:47,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:51:47,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:51:47,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:51:47,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:51:47,816 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:51:47,826 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,827 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... [2019-11-28 02:51:47,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:51:47,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:51:47,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:51:47,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:51:47,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:51:47,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:51:47,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:51:48,087 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:51:48,087 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:51:48,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:48 BoogieIcfgContainer [2019-11-28 02:51:48,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:51:48,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:51:48,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:51:48,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:51:48,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:51:47" (1/3) ... [2019-11-28 02:51:48,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785b7cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:51:48, skipping insertion in model container [2019-11-28 02:51:48,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:47" (2/3) ... [2019-11-28 02:51:48,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785b7cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:51:48, skipping insertion in model container [2019-11-28 02:51:48,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:48" (3/3) ... [2019-11-28 02:51:48,097 INFO L109 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig1.c [2019-11-28 02:51:48,108 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:51:48,116 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:51:48,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:51:48,203 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:51:48,204 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:51:48,204 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:51:48,204 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:51:48,205 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:51:48,205 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:51:48,205 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:51:48,205 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:51:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-28 02:51:48,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:51:48,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:48,230 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:51:48,230 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:48,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:48,237 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2019-11-28 02:51:48,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:48,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578509818] [2019-11-28 02:51:48,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:48,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:48,421 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578509818] [2019-11-28 02:51:48,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:51:48,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:51:48,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468599127] [2019-11-28 02:51:48,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:51:48,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:48,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:51:48,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,448 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-28 02:51:48,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:48,482 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-28 02:51:48,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:51:48,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:51:48,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:48,492 INFO L225 Difference]: With dead ends: 19 [2019-11-28 02:51:48,492 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 02:51:48,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 02:51:48,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 02:51:48,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 02:51:48,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-28 02:51:48,526 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2019-11-28 02:51:48,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:48,527 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-28 02:51:48,527 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:51:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-28 02:51:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:51:48,528 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:48,528 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:51:48,528 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:48,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:48,529 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2019-11-28 02:51:48,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:48,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511494378] [2019-11-28 02:51:48,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:48,562 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511494378] [2019-11-28 02:51:48,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:51:48,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:51:48,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179522993] [2019-11-28 02:51:48,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:51:48,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:48,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:51:48,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,565 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-11-28 02:51:48,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:48,590 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-11-28 02:51:48,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:51:48,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:51:48,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:48,591 INFO L225 Difference]: With dead ends: 10 [2019-11-28 02:51:48,591 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 02:51:48,592 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 02:51:48,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-28 02:51:48,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 02:51:48,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-28 02:51:48,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-11-28 02:51:48,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:48,596 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-28 02:51:48,596 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:51:48,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-28 02:51:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:51:48,596 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:48,596 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:51:48,597 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:48,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:48,597 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2019-11-28 02:51:48,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:48,598 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447518414] [2019-11-28 02:51:48,598 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:48,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447518414] [2019-11-28 02:51:48,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:51:48,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:51:48,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041092856] [2019-11-28 02:51:48,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:51:48,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:48,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:51:48,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,630 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2019-11-28 02:51:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:48,651 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2019-11-28 02:51:48,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:51:48,652 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 02:51:48,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:48,652 INFO L225 Difference]: With dead ends: 10 [2019-11-28 02:51:48,652 INFO L226 Difference]: Without dead ends: 9 [2019-11-28 02:51:48,653 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-28 02:51:48,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-28 02:51:48,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 02:51:48,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-11-28 02:51:48,658 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2019-11-28 02:51:48,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:48,658 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-28 02:51:48,658 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:51:48,658 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-28 02:51:48,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 02:51:48,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:51:48,660 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 02:51:48,660 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:51:48,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:51:48,660 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2019-11-28 02:51:48,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:51:48,661 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370953706] [2019-11-28 02:51:48,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:51:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:51:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:51:48,701 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370953706] [2019-11-28 02:51:48,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:51:48,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:51:48,702 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918497591] [2019-11-28 02:51:48,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:51:48,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:51:48,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:51:48,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,704 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-11-28 02:51:48,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:51:48,729 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-28 02:51:48,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:51:48,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-11-28 02:51:48,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:51:48,731 INFO L225 Difference]: With dead ends: 8 [2019-11-28 02:51:48,731 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:51:48,731 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:51:48,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:51:48,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:51:48,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:51:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:51:48,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-28 02:51:48,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:51:48,733 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:51:48,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:51:48,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:51:48,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:51:48,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:51:48,761 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 02:51:48,761 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:51:48,761 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:51:48,761 INFO L246 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-28 02:51:48,761 INFO L246 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2019-11-28 02:51:48,762 INFO L246 CegarLoopResult]: For program point L19(lines 19 24) no Hoare annotation was computed. [2019-11-28 02:51:48,762 INFO L242 CegarLoopResult]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-28 02:51:48,762 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 02:51:48,762 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2019-11-28 02:51:48,763 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:51:48,763 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:51:48,763 INFO L242 CegarLoopResult]: At program point L26(lines 14 27) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-11-28 02:51:48,763 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-28 02:51:48,763 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-28 02:51:48,763 INFO L246 CegarLoopResult]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2019-11-28 02:51:48,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:51:48 BoogieIcfgContainer [2019-11-28 02:51:48,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:51:48,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:51:48,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:51:48,783 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:51:48,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:51:48" (3/4) ... [2019-11-28 02:51:48,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:51:48,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:51:48,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:51:48,855 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:51:48,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:51:48,858 INFO L168 Benchmark]: Toolchain (without parser) took 1447.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -94.2 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:48,858 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:51:48,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.73 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:48,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:48,861 INFO L168 Benchmark]: Boogie Preprocessor took 23.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:48,861 INFO L168 Benchmark]: RCFGBuilder took 249.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:48,862 INFO L168 Benchmark]: TraceAbstraction took 692.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2019-11-28 02:51:48,863 INFO L168 Benchmark]: Witness Printer took 72.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:51:48,866 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 309.73 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 692.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 72.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: y <= 2147483647 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 20 SDslu, 2 SDs, 0 SdLazy, 19 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...