./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/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 32bit --witnessprinter.graph.data.programhash d08ec045f3070a7b4be2ee6fb5c0f639f90e227f ........................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:54:19,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:54:19,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:54:19,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:54:19,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:54:19,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:54:19,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:54:19,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:54:19,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:54:19,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:54:19,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:54:19,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:54:19,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:54:19,743 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:54:19,744 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:54:19,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:54:19,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:54:19,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:54:19,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:54:19,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:54:19,752 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:54:19,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:54:19,755 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:54:19,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:54:19,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:54:19,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:54:19,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:54:19,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:54:19,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:54:19,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:54:19,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:54:19,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:54:19,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:54:19,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:54:19,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:54:19,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:54:19,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:54:19,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:54:19,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:54:19,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:54:19,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:54:19,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 08:54:19,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:54:19,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:54:19,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:54:19,792 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:54:19,792 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 08:54:19,793 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:54:19,794 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 08:54:19,794 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 08:54:19,794 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 08:54:19,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 08:54:19,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:54:19,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:54:19,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:54:19,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:54:19,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:54:19,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:54:19,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:54:19,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:54:19,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:54:19,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:54:19,797 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 08:54:19,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 08:54:19,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:54:19,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:54:19,798 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:54:19,798 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d08ec045f3070a7b4be2ee6fb5c0f639f90e227f [2020-12-09 08:54:19,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:54:20,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:54:20,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:54:20,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:54:20,012 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:54:20,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-12-09 08:54:20,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/data/05bd5e672/297caecbd556437285af06f832f5ddfe/FLAGee0edae2e [2020-12-09 08:54:20,404 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:54:20,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-12-09 08:54:20,408 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/data/05bd5e672/297caecbd556437285af06f832f5ddfe/FLAGee0edae2e [2020-12-09 08:54:20,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/data/05bd5e672/297caecbd556437285af06f832f5ddfe [2020-12-09 08:54:20,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:54:20,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:54:20,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:54:20,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:54:20,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:54:20,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b3d429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20, skipping insertion in model container [2020-12-09 08:54:20,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:54:20,442 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:54:20,546 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c[628,641] [2020-12-09 08:54:20,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:54:20,553 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:54:20,563 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c[628,641] [2020-12-09 08:54:20,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:54:20,573 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:54:20,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20 WrapperNode [2020-12-09 08:54:20,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:54:20,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:54:20,574 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:54:20,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:54:20,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:54:20,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:54:20,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:54:20,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:54:20,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... [2020-12-09 08:54:20,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:54:20,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:54:20,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:54:20,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:54:20,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/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 [2020-12-09 08:54:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:54:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:54:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-12-09 08:54:20,674 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-12-09 08:54:20,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 08:54:20,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:54:20,842 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:54:20,842 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 08:54:20,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:54:20 BoogieIcfgContainer [2020-12-09 08:54:20,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:54:20,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:54:20,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:54:20,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:54:20,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:54:20" (1/3) ... [2020-12-09 08:54:20,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ead768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:54:20, skipping insertion in model container [2020-12-09 08:54:20,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:54:20" (2/3) ... [2020-12-09 08:54:20,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ead768 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:54:20, skipping insertion in model container [2020-12-09 08:54:20,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:54:20" (3/3) ... [2020-12-09 08:54:20,850 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2020-12-09 08:54:20,859 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:54:20,862 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-12-09 08:54:20,869 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-12-09 08:54:20,885 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:54:20,885 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 08:54:20,885 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:54:20,886 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:54:20,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:54:20,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:54:20,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:54:20,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:54:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-09 08:54:20,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 08:54:20,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-12-09 08:54:20,933 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 08:54:20,933 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 08:54:20,933 INFO L265 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-12-09 08:54:20,933 INFO L262 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-12-09 08:54:20,933 INFO L262 CegarLoopResult]: For program point sumEXIT(lines 6 12) no Hoare annotation was computed. [2020-12-09 08:54:20,933 INFO L265 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-12-09 08:54:20,933 INFO L262 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-12-09 08:54:20,934 INFO L262 CegarLoopResult]: For program point L7(lines 7 11) no Hoare annotation was computed. [2020-12-09 08:54:20,934 INFO L262 CegarLoopResult]: For program point sumFINAL(lines 6 12) no Hoare annotation was computed. [2020-12-09 08:54:20,934 INFO L265 CegarLoopResult]: At program point sumENTRY(lines 6 12) the Hoare annotation is: true [2020-12-09 08:54:20,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:54:20 BoogieIcfgContainer [2020-12-09 08:54:20,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:54:20,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:54:20,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:54:20,937 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:54:20,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:54:20" (3/4) ... [2020-12-09 08:54:20,940 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 08:54:20,944 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2020-12-09 08:54:20,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 08:54:20,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-09 08:54:20,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 08:54:20,947 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 08:54:20,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8879074c-4527-4f95-b0f3-a8d3d37fe558/bin/utaipan/witness.graphml [2020-12-09 08:54:20,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:54:20,979 INFO L168 Benchmark]: Toolchain (without parser) took 557.68 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 76.6 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:54:20,979 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory is still 90.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:54:20,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.42 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 65.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 08:54:20,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.53 ms. Allocated memory is still 113.2 MB. Free memory was 65.1 MB in the beginning and 63.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:54:20,981 INFO L168 Benchmark]: Boogie Preprocessor took 12.15 ms. Allocated memory is still 113.2 MB. Free memory was 63.8 MB in the beginning and 62.9 MB in the end (delta: 882.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:54:20,982 INFO L168 Benchmark]: RCFGBuilder took 234.86 ms. Allocated memory is still 113.2 MB. Free memory was 62.9 MB in the beginning and 86.6 MB in the end (delta: -23.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-09 08:54:20,983 INFO L168 Benchmark]: TraceAbstraction took 91.48 ms. Allocated memory is still 113.2 MB. Free memory was 86.1 MB in the beginning and 78.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 08:54:20,984 INFO L168 Benchmark]: Witness Printer took 40.34 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:54:20,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 113.2 MB. Free memory is still 90.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 152.42 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 65.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.53 ms. Allocated memory is still 113.2 MB. Free memory was 65.1 MB in the beginning and 63.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 12.15 ms. Allocated memory is still 113.2 MB. Free memory was 63.8 MB in the beginning and 62.9 MB in the end (delta: 882.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 234.86 ms. Allocated memory is still 113.2 MB. Free memory was 62.9 MB in the beginning and 86.6 MB in the end (delta: -23.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 91.48 ms. Allocated memory is still 113.2 MB. Free memory was 86.1 MB in the beginning and 78.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 40.34 ms. Allocated memory is still 113.2 MB. Free memory was 78.7 MB in the beginning and 76.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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...