./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/gcd01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/gcd01-2.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 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:26:26,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:26:26,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:26:26,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:26:26,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:26:26,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:26:26,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:26:26,719 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:26:26,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:26:26,721 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:26:26,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:26:26,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:26:26,724 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:26:26,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:26:26,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:26:26,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:26:26,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:26:26,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:26:26,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:26:26,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:26:26,732 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:26:26,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:26:26,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:26:26,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:26:26,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:26:26,737 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:26:26,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:26:26,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:26:26,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:26:26,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:26:26,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:26:26,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:26:26,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:26:26,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:26:26,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:26:26,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:26:26,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:26:26,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:26:26,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:26:26,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:26:26,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:26:26,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:26:26,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-23 13:26:26,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:26:26,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:26:26,768 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:26:26,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:26:26,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:26:26,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:26:26,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:26:26,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:26:26,770 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:26:26,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:26:26,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:26:26,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:26:26,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:26:26,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:26:26,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:26:26,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:26:26,772 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:26:26,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:26:26,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:26:26,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:26:26,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:26:26,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:26:26,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:26:26,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:26:26,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:26:26,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:26:26,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:26:26,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:26:26,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:26:26,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:26:26,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45c5821ff02aca8bda5f221968fe713118b5c593fcfc7e422e3a99fb31bf02bb [2022-07-23 13:26:26,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:26:26,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:26:26,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:26:26,960 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:26:26,961 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:26:26,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/gcd01-2.c [2022-07-23 13:26:27,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b843422b4/23dbf7040e5a413f993faf5a88da8508/FLAG740d18c3a [2022-07-23 13:26:27,351 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:26:27,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c [2022-07-23 13:26:27,356 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b843422b4/23dbf7040e5a413f993faf5a88da8508/FLAG740d18c3a [2022-07-23 13:26:27,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b843422b4/23dbf7040e5a413f993faf5a88da8508 [2022-07-23 13:26:27,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:26:27,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:26:27,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:26:27,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:26:27,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:26:27,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fd79616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27, skipping insertion in model container [2022-07-23 13:26:27,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:26:27,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:26:27,527 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2022-07-23 13:26:27,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:26:27,537 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:26:27,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/gcd01-2.c[974,987] [2022-07-23 13:26:27,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:26:27,560 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:26:27,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27 WrapperNode [2022-07-23 13:26:27,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:26:27,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:26:27,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:26:27,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:26:27,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,585 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-07-23 13:26:27,585 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:26:27,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:26:27,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:26:27,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:26:27,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,600 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:26:27,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:26:27,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:26:27,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:26:27,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (1/1) ... [2022-07-23 13:26:27,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:26:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:26:27,644 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) [2022-07-23 13:26:27,670 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 [2022-07-23 13:26:27,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:26:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2022-07-23 13:26:27,695 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2022-07-23 13:26:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:26:27,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:26:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:26:27,739 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:26:27,740 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:26:27,850 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:26:27,854 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:26:27,854 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 13:26:27,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:26:27 BoogieIcfgContainer [2022-07-23 13:26:27,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:26:27,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:26:27,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:26:27,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:26:27,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:26:27" (1/3) ... [2022-07-23 13:26:27,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f3d873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:26:27, skipping insertion in model container [2022-07-23 13:26:27,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:26:27" (2/3) ... [2022-07-23 13:26:27,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10f3d873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:26:27, skipping insertion in model container [2022-07-23 13:26:27,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:26:27" (3/3) ... [2022-07-23 13:26:27,870 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd01-2.c [2022-07-23 13:26:27,879 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:26:27,879 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-07-23 13:26:27,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:26:27,921 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@78854131, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2eaa9fa5 [2022-07-23 13:26:27,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-07-23 13:26:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.5) internal successors, (30), 24 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:26:27,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-23 13:26:27,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:26:27,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:26:27,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:26:27,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:26:27,947 INFO L85 PathProgramCache]: Analyzing trace with hash 937845846, now seen corresponding path program 1 times [2022-07-23 13:26:27,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:26:27,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698682395] [2022-07-23 13:26:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:26:27,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:26:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:26:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:26:28,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:26:28,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698682395] [2022-07-23 13:26:28,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698682395] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:26:28,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:26:28,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:26:28,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574038610] [2022-07-23 13:26:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:26:28,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:26:28,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:26:28,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:26:28,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:26:28,158 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.5) internal successors, (30), 24 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:26:28,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:26:28,271 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-07-23 13:26:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:26:28,273 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-23 13:26:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:26:28,277 INFO L225 Difference]: With dead ends: 37 [2022-07-23 13:26:28,282 INFO L226 Difference]: Without dead ends: 17 [2022-07-23 13:26:28,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:26:28,288 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 48 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:26:28,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 52 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:26:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-07-23 13:26:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-07-23 13:26:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:26:28,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-07-23 13:26:28,319 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 10 [2022-07-23 13:26:28,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:26:28,319 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-07-23 13:26:28,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:26:28,319 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-07-23 13:26:28,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-23 13:26:28,320 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:26:28,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:26:28,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:26:28,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-07-23 13:26:28,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:26:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash 937845622, now seen corresponding path program 1 times [2022-07-23 13:26:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:26:28,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875843776] [2022-07-23 13:26:28,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:26:28,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:26:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:26:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:26:28,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:26:28,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875843776] [2022-07-23 13:26:28,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875843776] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:26:28,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:26:28,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:26:28,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643272502] [2022-07-23 13:26:28,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:26:28,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:26:28,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:26:28,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:26:28,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:26:28,368 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:26:28,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:26:28,423 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-07-23 13:26:28,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:26:28,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-23 13:26:28,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:26:28,425 INFO L225 Difference]: With dead ends: 17 [2022-07-23 13:26:28,425 INFO L226 Difference]: Without dead ends: 0 [2022-07-23 13:26:28,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:26:28,427 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:26:28,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 16 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:26:28,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-23 13:26:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-23 13:26:28,431 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) [2022-07-23 13:26:28,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-23 13:26:28,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-07-23 13:26:28,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:26:28,431 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 13:26:28,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:26:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-23 13:26:28,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-23 13:26:28,434 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-07-23 13:26:28,435 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-07-23 13:26:28,436 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-07-23 13:26:28,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-07-23 13:26:28,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:26:28,438 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-23 13:26:28,508 INFO L899 garLoopResultBuilder]: For program point gcdFINAL(lines 17 28) no Hoare annotation was computed. [2022-07-23 13:26:28,509 INFO L899 garLoopResultBuilder]: For program point L27(line 27) no Hoare annotation was computed. [2022-07-23 13:26:28,509 INFO L899 garLoopResultBuilder]: For program point gcdEXIT(lines 17 28) no Hoare annotation was computed. [2022-07-23 13:26:28,509 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2022-07-23 13:26:28,510 INFO L899 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2022-07-23 13:26:28,510 INFO L899 garLoopResultBuilder]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-07-23 13:26:28,515 INFO L895 garLoopResultBuilder]: At program point L27-2(line 27) the Hoare annotation is: (or (not (<= |gcd_#in~y2| 2147483647)) (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647)) (not (<= |gcd_#in~y1| 2147483647))) [2022-07-23 13:26:28,515 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 26) no Hoare annotation was computed. [2022-07-23 13:26:28,515 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2022-07-23 13:26:28,516 INFO L899 garLoopResultBuilder]: For program point L27-3(line 27) no Hoare annotation was computed. [2022-07-23 13:26:28,517 INFO L902 garLoopResultBuilder]: At program point gcdENTRY(lines 17 28) the Hoare annotation is: true [2022-07-23 13:26:28,517 INFO L895 garLoopResultBuilder]: At program point L25-2(line 25) the Hoare annotation is: (or (not (<= |gcd_#in~y2| 2147483647)) (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y1 (+ gcd_~y2 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647)) (not (<= |gcd_#in~y1| 2147483647))) [2022-07-23 13:26:28,517 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-07-23 13:26:28,517 INFO L899 garLoopResultBuilder]: For program point L21(lines 21 23) no Hoare annotation was computed. [2022-07-23 13:26:28,517 INFO L899 garLoopResultBuilder]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-07-23 13:26:28,518 INFO L899 garLoopResultBuilder]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2022-07-23 13:26:28,518 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-07-23 13:26:28,518 INFO L899 garLoopResultBuilder]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-07-23 13:26:28,518 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-23 13:26:28,518 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 34) no Hoare annotation was computed. [2022-07-23 13:26:28,519 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-23 13:26:28,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-23 13:26:28,520 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-23 13:26:28,520 INFO L902 garLoopResultBuilder]: At program point L43(lines 30 45) the Hoare annotation is: true [2022-07-23 13:26:28,520 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-23 13:26:28,520 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2022-07-23 13:26:28,521 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~n~0#1| 2147483647) (<= |ULTIMATE.start_main_~m~0#1| 2147483647)) [2022-07-23 13:26:28,523 INFO L899 garLoopResultBuilder]: For program point L39-1(line 39) no Hoare annotation was computed. [2022-07-23 13:26:28,523 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 38) no Hoare annotation was computed. [2022-07-23 13:26:28,528 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-23 13:26:28,529 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:26:28,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:26:28 BoogieIcfgContainer [2022-07-23 13:26:28,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:26:28,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:26:28,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:26:28,542 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:26:28,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:26:27" (3/4) ... [2022-07-23 13:26:28,544 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-23 13:26:28,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2022-07-23 13:26:28,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-23 13:26:28,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-23 13:26:28,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-23 13:26:28,554 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-23 13:26:28,580 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 13:26:28,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:26:28,581 INFO L158 Benchmark]: Toolchain (without parser) took 1211.40ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: -2.1kB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-07-23 13:26:28,581 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:26:28,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.44ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 68.8MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 13:26:28,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.79ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:26:28,582 INFO L158 Benchmark]: Boogie Preprocessor took 28.17ms. Allocated memory is still 92.3MB. Free memory was 67.2MB in the beginning and 66.3MB in the end (delta: 829.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:26:28,582 INFO L158 Benchmark]: RCFGBuilder took 249.52ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 56.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 13:26:28,583 INFO L158 Benchmark]: TraceAbstraction took 673.43ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.2MB in the beginning and 63.1MB in the end (delta: -6.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2022-07-23 13:26:28,583 INFO L158 Benchmark]: Witness Printer took 39.21ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:26:28,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.44ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 68.8MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.79ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 67.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.17ms. Allocated memory is still 92.3MB. Free memory was 67.2MB in the beginning and 66.3MB in the end (delta: 829.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.52ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 56.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 673.43ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.2MB in the beginning and 63.1MB in the end (delta: -6.9MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Witness Printer took 39.21ms. Allocated memory is still 111.1MB. Free memory was 62.6MB in the beginning and 60.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 71 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 22 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 61 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 30]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-23 13:26:28,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE