./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/easy2-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 75d609d205f56e3164255114b6f6d5769a029995 .................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:03:44,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:03:44,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:03:44,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:03:44,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:03:44,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:03:44,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:03:44,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:03:44,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:03:44,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:03:44,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:03:44,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:03:44,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:03:44,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:03:44,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:03:44,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:03:44,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:03:44,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:03:44,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:03:44,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:03:44,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:03:44,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:03:44,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:03:44,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:03:44,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:03:44,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:03:44,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:03:44,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:03:44,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:03:44,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:03:44,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:03:44,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:03:44,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:03:44,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:03:44,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:03:44,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:03:44,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:03:44,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:03:44,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:03:44,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:03:44,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:03:44,040 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2019-12-07 13:03:44,050 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:03:44,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:03:44,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 13:03:44,051 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 13:03:44,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 13:03:44,051 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 13:03:44,052 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 13:03:44,052 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 13:03:44,053 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 13:03:44,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:03:44,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:03:44,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:03:44,053 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 13:03:44,054 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:03:44,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:03:44,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:03:44,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 13:03:44,056 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/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 75d609d205f56e3164255114b6f6d5769a029995 [2019-12-07 13:03:44,160 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:03:44,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:03:44,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:03:44,172 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:03:44,172 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:03:44,173 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/../../sv-benchmarks/c/termination-crafted/easy2-2.c [2019-12-07 13:03:44,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/data/c74a16132/77479922352541cda6b8b3b7293e2512/FLAG757fe0e97 [2019-12-07 13:03:44,512 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:03:44,513 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/sv-benchmarks/c/termination-crafted/easy2-2.c [2019-12-07 13:03:44,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/data/c74a16132/77479922352541cda6b8b3b7293e2512/FLAG757fe0e97 [2019-12-07 13:03:44,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/data/c74a16132/77479922352541cda6b8b3b7293e2512 [2019-12-07 13:03:44,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:03:44,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:03:44,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:03:44,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:03:44,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:03:44,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4b4e56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44, skipping insertion in model container [2019-12-07 13:03:44,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:03:44,549 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:03:44,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:03:44,661 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:03:44,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:03:44,715 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:03:44,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44 WrapperNode [2019-12-07 13:03:44,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:03:44,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:03:44,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:03:44,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:03:44,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:03:44,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:03:44,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:03:44,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:03:44,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... [2019-12-07 13:03:44,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:03:44,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:03:44,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:03:44,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:03:44,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/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 [2019-12-07 13:03:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:03:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:03:44,893 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:03:44,893 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 13:03:44,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:03:44 BoogieIcfgContainer [2019-12-07 13:03:44,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:03:44,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:03:44,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:03:44,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:03:44,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:03:44" (1/3) ... [2019-12-07 13:03:44,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128eb2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:03:44, skipping insertion in model container [2019-12-07 13:03:44,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:03:44" (2/3) ... [2019-12-07 13:03:44,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@128eb2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:03:44, skipping insertion in model container [2019-12-07 13:03:44,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:03:44" (3/3) ... [2019-12-07 13:03:44,899 INFO L109 eAbstractionObserver]: Analyzing ICFG easy2-2.c [2019-12-07 13:03:44,906 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:03:44,910 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-12-07 13:03:44,917 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-12-07 13:03:44,928 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:03:44,929 INFO L374 AbstractCegarLoop]: Hoare is false [2019-12-07 13:03:44,929 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:03:44,929 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:03:44,929 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:03:44,929 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:03:44,929 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:03:44,929 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:03:44,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2019-12-07 13:03:44,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:03:44,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:03:44 BoogieIcfgContainer [2019-12-07 13:03:44,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:03:44,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:03:44,943 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:03:44,944 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:03:44,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:03:44" (3/4) ... [2019-12-07 13:03:44,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:03:44,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 13:03:44,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 13:03:44,952 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:03:44,977 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3f871c5d-eed0-4c3a-8987-47e97de87dcb/bin/utaipan/witness.graphml [2019-12-07 13:03:44,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:03:44,978 INFO L168 Benchmark]: Toolchain (without parser) took 450.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:03:44,978 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:03:44,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 13:03:44,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:03:44,979 INFO L168 Benchmark]: Boogie Preprocessor took 11.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:03:44,980 INFO L168 Benchmark]: RCFGBuilder took 145.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:03:44,980 INFO L168 Benchmark]: TraceAbstraction took 49.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:03:44,980 INFO L168 Benchmark]: Witness Printer took 33.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:03:44,982 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.86 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 145.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 49.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Witness Printer took 33.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 1 procedures, 3 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=3occurred 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: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...