./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/NoNegativeIntegerConstant.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/NoNegativeIntegerConstant.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a11cfeaad7bed3f9aca46452bbe027320dfd89ff ........................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:56,780 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:56,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:56,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:56,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:56,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:56,792 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:56,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:56,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:56,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:56,797 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:56,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:56,798 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:56,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:56,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:56,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:56,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:56,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:56,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:56,805 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:56,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:56,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:56,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:56,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:56,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:56,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:56,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:56,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:56,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:56,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:56,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:56,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:56,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:56,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:56,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:56,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:56,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:56,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:56,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:56,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:56,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:56,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-10-22 11:26:56,829 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:56,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:56,830 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:56,831 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:56,831 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:56,831 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:56,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:56,831 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:56,831 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:56,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:56,832 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:56,832 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:56,833 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:56,833 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:26:56,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:56,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:56,834 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:56,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:56,834 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:56,834 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:26:56,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:56,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:56,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:56,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:56,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:56,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:56,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:56,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:56,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:56,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:56,836 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:56,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:56,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:56,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:56,837 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan 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 -> Taipan 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 -> a11cfeaad7bed3f9aca46452bbe027320dfd89ff [2019-10-22 11:26:56,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:56,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:56,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:56,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:56,876 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:56,876 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/NoNegativeIntegerConstant.i [2019-10-22 11:26:56,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/data/5524d1ed5/f7a847ac4b1840dc8f58a362acc66311/FLAG134a5ec3f [2019-10-22 11:26:57,351 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:57,351 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/sv-benchmarks/c/signedintegeroverflow-regression/NoNegativeIntegerConstant.i [2019-10-22 11:26:57,359 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/data/5524d1ed5/f7a847ac4b1840dc8f58a362acc66311/FLAG134a5ec3f [2019-10-22 11:26:57,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/data/5524d1ed5/f7a847ac4b1840dc8f58a362acc66311 [2019-10-22 11:26:57,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:57,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:57,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:57,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:57,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:57,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29b9025e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57, skipping insertion in model container [2019-10-22 11:26:57,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,387 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:57,412 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:57,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:57,710 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:57,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:57,800 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:57,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57 WrapperNode [2019-10-22 11:26:57,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:57,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:57,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:57,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:57,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:57,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:57,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:57,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:57,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... [2019-10-22 11:26:57,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:57,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:57,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:57,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:57,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/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 [2019-10-22 11:26:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:26:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:26:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:58,110 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:58,110 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:26:58,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:58 BoogieIcfgContainer [2019-10-22 11:26:58,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:58,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:58,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:58,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:58,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:57" (1/3) ... [2019-10-22 11:26:58,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150768e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:58, skipping insertion in model container [2019-10-22 11:26:58,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:57" (2/3) ... [2019-10-22 11:26:58,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150768e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:58, skipping insertion in model container [2019-10-22 11:26:58,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:58" (3/3) ... [2019-10-22 11:26:58,117 INFO L109 eAbstractionObserver]: Analyzing ICFG NoNegativeIntegerConstant.i [2019-10-22 11:26:58,126 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:58,132 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-10-22 11:26:58,142 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-10-22 11:26:58,162 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:58,162 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:58,162 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:58,163 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:58,163 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:58,163 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:58,163 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:58,163 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:58,175 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-10-22 11:26:58,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:58,183 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2019-10-22 11:26:58,232 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:58,232 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:26:58,233 INFO L446 ceAbstractionStarter]: At program point L334(lines 331 335) the Hoare annotation is: true [2019-10-22 11:26:58,233 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:58,233 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:58,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:58 BoogieIcfgContainer [2019-10-22 11:26:58,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:58,242 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:58,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:58,242 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:58,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:58" (3/4) ... [2019-10-22 11:26:58,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:58,260 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-10-22 11:26:58,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:26:58,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:26:58,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 11:26:58,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f7f8b3cb-e148-4ef9-9894-2964ef7d8f75/bin/utaipan/witness.graphml [2019-10-22 11:26:58,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:58,303 INFO L168 Benchmark]: Toolchain (without parser) took 928.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:58,303 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:58,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 935.7 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:58,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:58,305 INFO L168 Benchmark]: Boogie Preprocessor took 19.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2019-10-22 11:26:58,305 INFO L168 Benchmark]: RCFGBuilder took 242.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:58,306 INFO L168 Benchmark]: TraceAbstraction took 129.22 ms. Allocated memory is still 1.2 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. [2019-10-22 11:26:58,307 INFO L168 Benchmark]: Witness Printer took 58.46 ms. Allocated memory is still 1.2 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. [2019-10-22 11:26:58,310 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 963.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 427.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 935.7 MB in the beginning and 1.2 GB in the end (delta: -215.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 242.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 129.22 ms. Allocated memory is still 1.2 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. * Witness Printer took 58.46 ms. Allocated memory is still 1.2 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...