./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd ............................................................................................................................................................................................................................................................................... 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 09:04:04,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:04:04,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:04:04,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:04:04,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:04:04,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:04:04,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:04:04,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:04:04,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:04:04,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:04:04,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:04:04,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:04:04,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:04:04,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:04:04,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:04:04,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:04:04,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:04:04,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:04:04,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:04:04,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:04:04,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:04:04,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:04:04,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:04:04,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:04:04,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:04:04,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:04:04,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:04:04,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:04:04,948 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:04:04,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:04:04,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:04:04,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:04:04,950 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:04:04,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:04:04,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:04:04,952 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:04:04,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:04:04,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:04:04,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:04:04,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:04:04,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:04:04,954 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 09:04:04,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:04:04,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:04:04,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:04:04,972 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:04:04,972 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:04:04,972 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:04:04,972 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 09:04:04,972 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:04:04,972 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:04:04,973 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 09:04:04,973 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 09:04:04,973 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:04:04,973 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 09:04:04,973 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 09:04:04,973 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 09:04:04,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:04:04,974 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:04:04,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 09:04:04,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:04:04,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:04:04,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:04:04,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:04:04,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:04:04,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:04:04,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:04:04,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:04:04,976 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_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-12-09 09:04:05,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:04:05,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:04:05,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:04:05,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:04:05,173 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:04:05,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-12-09 09:04:05,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/291e7d6b3/4e8bf5c7eafc45839c73ebf8214ab24a/FLAGbe3a80915 [2020-12-09 09:04:05,585 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:04:05,586 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-12-09 09:04:05,590 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/291e7d6b3/4e8bf5c7eafc45839c73ebf8214ab24a/FLAGbe3a80915 [2020-12-09 09:04:05,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/291e7d6b3/4e8bf5c7eafc45839c73ebf8214ab24a [2020-12-09 09:04:05,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:04:05,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:04:05,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:04:05,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:04:05,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:04:05,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13a928b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05, skipping insertion in model container [2020-12-09 09:04:05,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:04:05,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:04:05,715 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_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2020-12-09 09:04:05,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:04:05,737 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:04:05,746 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_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2020-12-09 09:04:05,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:04:05,756 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:04:05,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05 WrapperNode [2020-12-09 09:04:05,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:04:05,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:04:05,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:04:05,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:04:05,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:04:05,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:04:05,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:04:05,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:04:05,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... [2020-12-09 09:04:05,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:04:05,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:04:05,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:04:05,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:04:05,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/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 09:04:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:04:05,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:04:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 09:04:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:04:06,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:04:06,010 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 09:04:06,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:04:06 BoogieIcfgContainer [2020-12-09 09:04:06,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:04:06,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:04:06,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:04:06,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:04:06,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:04:05" (1/3) ... [2020-12-09 09:04:06,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cadd869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:04:06, skipping insertion in model container [2020-12-09 09:04:06,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:05" (2/3) ... [2020-12-09 09:04:06,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cadd869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:04:06, skipping insertion in model container [2020-12-09 09:04:06,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:04:06" (3/3) ... [2020-12-09 09:04:06,020 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-12-09 09:04:06,034 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:04:06,037 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:04:06,048 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 09:04:06,071 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:04:06,071 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:04:06,071 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:04:06,071 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:04:06,071 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:04:06,072 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:04:06,072 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:04:06,072 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:04:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-12-09 09:04:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 09:04:06,088 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:04:06,088 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 09:04:06,089 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:04:06,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:04:06,094 INFO L82 PathProgramCache]: Analyzing trace with hash 42445, now seen corresponding path program 1 times [2020-12-09 09:04:06,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 09:04:06,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557445875] [2020-12-09 09:04:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 09:04:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 09:04:06,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 09:04:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 09:04:06,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 09:04:06,213 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 09:04:06,214 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 09:04:06,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 09:04:06,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:04:06 BoogieIcfgContainer [2020-12-09 09:04:06,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:04:06,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:04:06,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:04:06,228 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:04:06,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:04:06" (3/4) ... [2020-12-09 09:04:06,232 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 09:04:06,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:04:06,235 INFO L168 Benchmark]: Toolchain (without parser) took 631.81 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.7 MB in the beginning and 70.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:06,236 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 83.9 MB. Free memory was 43.1 MB in the beginning and 43.1 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:04:06,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.85 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 95.9 MB in the end (delta: -41.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:06,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.82 ms. Allocated memory is still 117.4 MB. Free memory was 95.9 MB in the beginning and 94.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:04:06,239 INFO L168 Benchmark]: Boogie Preprocessor took 14.66 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 93.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:04:06,239 INFO L168 Benchmark]: RCFGBuilder took 217.44 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 81.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:06,240 INFO L168 Benchmark]: TraceAbstraction took 213.28 ms. Allocated memory is still 117.4 MB. Free memory was 81.3 MB in the beginning and 70.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:06,240 INFO L168 Benchmark]: Witness Printer took 4.53 ms. Allocated memory is still 117.4 MB. Free memory is still 70.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:04:06,244 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 83.9 MB. Free memory was 43.1 MB in the beginning and 43.1 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 153.85 ms. Allocated memory was 83.9 MB in the beginning and 117.4 MB in the end (delta: 33.6 MB). Free memory was 54.4 MB in the beginning and 95.9 MB in the end (delta: -41.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.82 ms. Allocated memory is still 117.4 MB. Free memory was 95.9 MB in the beginning and 94.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.66 ms. Allocated memory is still 117.4 MB. Free memory was 94.6 MB in the beginning and 93.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 217.44 ms. Allocated memory is still 117.4 MB. Free memory was 93.1 MB in the beginning and 81.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 213.28 ms. Allocated memory is still 117.4 MB. Free memory was 81.3 MB in the beginning and 70.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.53 ms. Allocated memory is still 117.4 MB. Free memory is still 70.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of to_int at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, 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=6occurred 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 09:04:07,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 09:04:07,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 09:04:07,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 09:04:07,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 09:04:07,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 09:04:07,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 09:04:07,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 09:04:07,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 09:04:07,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 09:04:07,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 09:04:07,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 09:04:07,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 09:04:07,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 09:04:07,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 09:04:07,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 09:04:07,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 09:04:07,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 09:04:07,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 09:04:07,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 09:04:07,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 09:04:07,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 09:04:07,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 09:04:07,830 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 09:04:07,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 09:04:07,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 09:04:07,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 09:04:07,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 09:04:07,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 09:04:07,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 09:04:07,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 09:04:07,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 09:04:07,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 09:04:07,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 09:04:07,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 09:04:07,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 09:04:07,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 09:04:07,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 09:04:07,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 09:04:07,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 09:04:07,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 09:04:07,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 09:04:07,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 09:04:07,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 09:04:07,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 09:04:07,874 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 09:04:07,874 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 09:04:07,875 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 09:04:07,875 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 09:04:07,875 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 09:04:07,875 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 09:04:07,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 09:04:07,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 09:04:07,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 09:04:07,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 09:04:07,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 09:04:07,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 09:04:07,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 09:04:07,877 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 09:04:07,877 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 09:04:07,878 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 09:04:07,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 09:04:07,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 09:04:07,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 09:04:07,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 09:04:07,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 09:04:07,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 09:04:07,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 09:04:07,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 09:04:07,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 09:04:07,880 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 09:04:07,880 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 09:04:07,880 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 09:04:07,880 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 09:04:07,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 09:04:07,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 09:04:07,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 09:04:07,881 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f4c7cd3af7d4ef31d93e6369e6026704f12fbd [2020-12-09 09:04:08,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 09:04:08,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 09:04:08,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 09:04:08,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 09:04:08,149 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 09:04:08,149 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-12-09 09:04:08,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/965e043bd/08e82bdc6d154e47afcb245b64f7ef55/FLAG08ad4784f [2020-12-09 09:04:08,596 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 09:04:08,597 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2020-12-09 09:04:08,601 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/965e043bd/08e82bdc6d154e47afcb245b64f7ef55/FLAG08ad4784f [2020-12-09 09:04:08,614 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/data/965e043bd/08e82bdc6d154e47afcb245b64f7ef55 [2020-12-09 09:04:08,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 09:04:08,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 09:04:08,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 09:04:08,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 09:04:08,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 09:04:08,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417409b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08, skipping insertion in model container [2020-12-09 09:04:08,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 09:04:08,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 09:04:08,735 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_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2020-12-09 09:04:08,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:04:08,748 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 09:04:08,757 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_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2020-12-09 09:04:08,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 09:04:08,768 INFO L208 MainTranslator]: Completed translation [2020-12-09 09:04:08,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08 WrapperNode [2020-12-09 09:04:08,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 09:04:08,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 09:04:08,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 09:04:08,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 09:04:08,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,801 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 09:04:08,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 09:04:08,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 09:04:08,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 09:04:08,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... [2020-12-09 09:04:08,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 09:04:08,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 09:04:08,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 09:04:08,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 09:04:08,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/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 09:04:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 09:04:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 09:04:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 09:04:08,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 09:04:09,119 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 09:04:09,119 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 09:04:09,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:04:09 BoogieIcfgContainer [2020-12-09 09:04:09,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 09:04:09,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 09:04:09,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 09:04:09,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 09:04:09,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:04:08" (1/3) ... [2020-12-09 09:04:09,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f73784c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:04:09, skipping insertion in model container [2020-12-09 09:04:09,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:04:08" (2/3) ... [2020-12-09 09:04:09,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f73784c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:04:09, skipping insertion in model container [2020-12-09 09:04:09,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:04:09" (3/3) ... [2020-12-09 09:04:09,129 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp3.c [2020-12-09 09:04:09,143 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 09:04:09,146 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 09:04:09,157 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 09:04:09,179 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 09:04:09,179 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 09:04:09,179 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 09:04:09,179 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 09:04:09,179 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 09:04:09,180 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 09:04:09,180 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 09:04:09,180 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 09:04:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-09 09:04:09,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 09:04:09,194 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 09:04:09,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 09:04:09,195 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 09:04:09,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 09:04:09,205 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-09 09:04:09,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 09:04:09,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865759311] [2020-12-09 09:04:09,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 09:04:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 09:04:09,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 09:04:09,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 09:04:09,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 09:04:09,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 09:04:09,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865759311] [2020-12-09 09:04:09,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 09:04:09,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 09:04:09,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42107183] [2020-12-09 09:04:09,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 09:04:09,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 09:04:09,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 09:04:09,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 09:04:09,375 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2020-12-09 09:04:09,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 09:04:09,439 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-09 09:04:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 09:04:09,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-12-09 09:04:09,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 09:04:09,446 INFO L225 Difference]: With dead ends: 11 [2020-12-09 09:04:09,446 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 09:04:09,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 09:04:09,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 09:04:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 09:04:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 09:04:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 09:04:09,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-09 09:04:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 09:04:09,465 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 09:04:09,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 09:04:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 09:04:09,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 09:04:09,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 09:04:09,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-12-09 09:04:09,670 INFO L262 CegarLoopResult]: For program point L5(lines 5 11) no Hoare annotation was computed. [2020-12-09 09:04:09,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:04:09 BoogieIcfgContainer [2020-12-09 09:04:09,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 09:04:09,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 09:04:09,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 09:04:09,675 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 09:04:09,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:04:09" (3/4) ... [2020-12-09 09:04:09,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 09:04:09,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 09:04:09,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 09:04:09,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 09:04:09,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 09:04:09,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_02b10ede-a3ec-4c5a-a07e-85fe35e85f42/bin/utaipan/witness.graphml [2020-12-09 09:04:09,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 09:04:09,706 INFO L168 Benchmark]: Toolchain (without parser) took 1089.11 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 42.6 MB in the beginning and 43.1 MB in the end (delta: -517.2 kB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,707 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 43.6 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 09:04:09,707 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.83 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 32.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,708 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.43 ms. Allocated memory is still 60.8 MB. Free memory was 32.8 MB in the beginning and 45.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,708 INFO L168 Benchmark]: Boogie Preprocessor took 28.46 ms. Allocated memory is still 60.8 MB. Free memory was 45.4 MB in the beginning and 44.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,709 INFO L168 Benchmark]: RCFGBuilder took 290.07 ms. Allocated memory is still 60.8 MB. Free memory was 44.3 MB in the beginning and 34.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,709 INFO L168 Benchmark]: TraceAbstraction took 551.45 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 33.6 MB in the beginning and 45.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,710 INFO L168 Benchmark]: Witness Printer took 30.39 ms. Allocated memory is still 77.6 MB. Free memory was 45.0 MB in the beginning and 43.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 09:04:09,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 43.6 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 151.83 ms. Allocated memory is still 60.8 MB. Free memory was 42.5 MB in the beginning and 32.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.43 ms. Allocated memory is still 60.8 MB. Free memory was 32.8 MB in the beginning and 45.4 MB in the end (delta: -12.6 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.46 ms. Allocated memory is still 60.8 MB. Free memory was 45.4 MB in the beginning and 44.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 290.07 ms. Allocated memory is still 60.8 MB. Free memory was 44.3 MB in the beginning and 34.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 551.45 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 33.6 MB in the beginning and 45.4 MB in the end (delta: -11.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 30.39 ms. Allocated memory is still 77.6 MB. Free memory was 45.0 MB in the beginning and 43.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 3 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...