./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ab995f7fc826665e07ee96ac8969470b0927c50 ................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ab995f7fc826665e07ee96ac8969470b0927c50 ................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:22:47,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:22:47,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:22:48,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:22:48,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:22:48,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:22:48,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:22:48,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:22:48,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:22:48,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:22:48,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:22:48,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:22:48,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:22:48,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:22:48,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:22:48,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:22:48,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:22:48,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:22:48,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:22:48,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:22:48,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:22:48,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:22:48,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:22:48,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:22:48,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:22:48,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:22:48,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:22:48,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:22:48,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:22:48,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:22:48,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:22:48,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:22:48,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:22:48,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:22:48,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:22:48,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:22:48,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:22:48,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:22:48,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:22:48,061 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:22:48,062 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:22:48,063 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:22:48,088 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:22:48,097 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:22:48,098 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:22:48,098 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:22:48,099 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:22:48,099 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:22:48,099 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:22:48,099 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:22:48,099 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:22:48,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:22:48,100 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:22:48,100 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:22:48,100 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:22:48,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:22:48,101 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:22:48,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:22:48,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:22:48,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:22:48,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:22:48,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:22:48,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:22:48,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:22:48,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:22:48,103 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:22:48,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:22:48,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:22:48,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:22:48,104 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:22:48,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:22:48,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:22:48,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:22:48,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:22:48,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:22:48,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:22:48,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:22:48,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:22:48,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:22:48,108 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_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/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(__VERIFIER_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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-11-26 02:22:48,267 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:22:48,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:22:48,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:22:48,285 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:22:48,285 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:22:48,286 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-26 02:22:48,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/c76016e0b/bbb5d803ee8d46b498ebad135c173a2c/FLAG63b303e7a [2019-11-26 02:22:48,733 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:22:48,733 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-26 02:22:48,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/c76016e0b/bbb5d803ee8d46b498ebad135c173a2c/FLAG63b303e7a [2019-11-26 02:22:49,170 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/c76016e0b/bbb5d803ee8d46b498ebad135c173a2c [2019-11-26 02:22:49,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:22:49,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:22:49,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:22:49,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:22:49,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:22:49,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7442682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49, skipping insertion in model container [2019-11-26 02:22:49,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:22:49,208 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:22:49,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:22:49,435 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:22:49,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:22:49,463 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:22:49,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49 WrapperNode [2019-11-26 02:22:49,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:22:49,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:22:49,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:22:49,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:22:49,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:22:49,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:22:49,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:22:49,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:22:49,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... [2019-11-26 02:22:49,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:22:49,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:22:49,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:22:49,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:22:49,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/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 [2019-11-26 02:22:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:22:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:22:49,681 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:22:49,681 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:22:49,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:22:49 BoogieIcfgContainer [2019-11-26 02:22:49,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:22:49,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:22:49,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:22:49,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:22:49,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:22:49" (1/3) ... [2019-11-26 02:22:49,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6703311b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:22:49, skipping insertion in model container [2019-11-26 02:22:49,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:49" (2/3) ... [2019-11-26 02:22:49,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6703311b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:22:49, skipping insertion in model container [2019-11-26 02:22:49,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:22:49" (3/3) ... [2019-11-26 02:22:49,689 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-11-26 02:22:49,697 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:22:49,703 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:22:49,713 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:22:49,733 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:22:49,733 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:22:49,733 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:22:49,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:22:49,734 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:22:49,734 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:22:49,734 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:22:49,734 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:22:49,746 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-11-26 02:22:49,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:22:49,751 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:22:49,751 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:22:49,752 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:22:49,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:22:49,757 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-26 02:22:49,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:22:49,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976627043] [2019-11-26 02:22:49,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:22:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:22:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:22:49,848 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:22:49,848 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:22:49,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:22:49 BoogieIcfgContainer [2019-11-26 02:22:49,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:22:49,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:22:49,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:22:49,863 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:22:49,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:22:49" (3/4) ... [2019-11-26 02:22:49,866 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:22:49,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:22:49,868 INFO L168 Benchmark]: Toolchain (without parser) took 693.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -149.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:22:49,869 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:22:49,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:49,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:22:49,871 INFO L168 Benchmark]: Boogie Preprocessor took 15.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:22:49,872 INFO L168 Benchmark]: RCFGBuilder took 175.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:49,872 INFO L168 Benchmark]: TraceAbstraction took 178.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:49,873 INFO L168 Benchmark]: Witness Printer took 4.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:22:49,875 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 178.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.20 ms. Allocated memory is still 1.2 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: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; [L9] COND TRUE !(d == fp) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, 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 0.1.24-6b5699a [2019-11-26 02:22:51,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:22:51,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:22:51,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:22:51,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:22:51,598 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:22:51,599 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:22:51,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:22:51,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:22:51,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:22:51,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:22:51,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:22:51,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:22:51,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:22:51,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:22:51,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:22:51,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:22:51,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:22:51,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:22:51,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:22:51,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:22:51,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:22:51,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:22:51,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:22:51,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:22:51,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:22:51,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:22:51,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:22:51,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:22:51,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:22:51,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:22:51,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:22:51,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:22:51,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:22:51,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:22:51,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:22:51,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:22:51,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:22:51,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:22:51,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:22:51,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:22:51,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:22:51,678 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:22:51,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:22:51,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:22:51,689 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:22:51,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:22:51,690 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:22:51,690 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:22:51,690 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:22:51,690 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:22:51,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:22:51,691 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:22:51,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:22:51,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:22:51,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:22:51,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:22:51,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:22:51,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:22:51,693 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:22:51,693 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:22:51,694 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:22:51,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:22:51,694 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:22:51,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:22:51,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:22:51,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:22:51,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:22:51,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:22:51,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:22:51,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:22:51,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:22:51,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:22:51,697 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:22:51,697 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:22:51,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:22:51,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:22:51,698 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/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(__VERIFIER_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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-11-26 02:22:51,978 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:22:51,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:22:51,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:22:51,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:22:51,998 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:22:51,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-26 02:22:52,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/8482031d7/7bf5306ed0b94beda2fac1e3dbab4857/FLAG2a77739bb [2019-11-26 02:22:52,425 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:22:52,425 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-11-26 02:22:52,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/8482031d7/7bf5306ed0b94beda2fac1e3dbab4857/FLAG2a77739bb [2019-11-26 02:22:52,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/data/8482031d7/7bf5306ed0b94beda2fac1e3dbab4857 [2019-11-26 02:22:52,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:22:52,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:22:52,866 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:22:52,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:22:52,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:22:52,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:22:52" (1/1) ... [2019-11-26 02:22:52,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e8b0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:52, skipping insertion in model container [2019-11-26 02:22:52,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:22:52" (1/1) ... [2019-11-26 02:22:52,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:22:52,893 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:22:53,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:22:53,034 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:22:53,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:22:53,066 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:22:53,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53 WrapperNode [2019-11-26 02:22:53,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:22:53,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:22:53,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:22:53,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:22:53,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:22:53,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:22:53,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:22:53,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:22:53,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... [2019-11-26 02:22:53,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:22:53,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:22:53,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:22:53,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:22:53,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/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 [2019-11-26 02:22:53,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:22:53,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:22:53,452 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:22:53,453 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:22:53,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:22:53 BoogieIcfgContainer [2019-11-26 02:22:53,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:22:53,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:22:53,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:22:53,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:22:53,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:22:52" (1/3) ... [2019-11-26 02:22:53,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24087b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:22:53, skipping insertion in model container [2019-11-26 02:22:53,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:22:53" (2/3) ... [2019-11-26 02:22:53,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24087b06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:22:53, skipping insertion in model container [2019-11-26 02:22:53,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:22:53" (3/3) ... [2019-11-26 02:22:53,463 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-11-26 02:22:53,471 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:22:53,475 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:22:53,482 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:22:53,501 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:22:53,502 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:22:53,502 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:22:53,502 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:22:53,502 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:22:53,502 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:22:53,502 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:22:53,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:22:53,514 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-26 02:22:53,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:22:53,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:22:53,519 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:22:53,519 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:22:53,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:22:53,523 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-26 02:22:53,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:22:53,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536031419] [2019-11-26 02:22:53,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/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 [2019-11-26 02:22:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:22:53,577 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-26 02:22:53,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:22:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:22:53,658 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:22:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:22:53,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536031419] [2019-11-26 02:22:53,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:22:53,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:22:53,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274342914] [2019-11-26 02:22:53,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:22:53,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:22:53,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:22:53,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:22:53,710 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-26 02:22:53,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:22:53,738 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-26 02:22:53,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:22:53,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-26 02:22:53,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:22:53,745 INFO L225 Difference]: With dead ends: 13 [2019-11-26 02:22:53,745 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:22:53,747 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:22:53,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:22:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:22:53,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:22:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:22:53,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-26 02:22:53,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:22:53,767 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:22:53,767 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:22:53,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:22:53,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:22:53,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:22:53,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:22:54,004 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:22:54,005 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:22:54,005 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:22:54,005 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:22:54,005 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-26 02:22:54,006 INFO L440 ceAbstractionStarter]: At program point L11(lines 3 12) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))) ULTIMATE.start_main_~d~0) (= ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0)))) ULTIMATE.start_main_~fp~0))) [2019-11-26 02:22:54,006 INFO L444 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-26 02:22:54,006 INFO L444 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-11-26 02:22:54,006 INFO L444 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2019-11-26 02:22:54,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,018 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,018 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,019 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:22:54 BoogieIcfgContainer [2019-11-26 02:22:54,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:22:54,021 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:22:54,021 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:22:54,022 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:22:54,022 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:22:53" (3/4) ... [2019-11-26 02:22:54,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:22:54,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:22:54,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:22:54,034 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:22:54,057 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728))) == fp) [2019-11-26 02:22:54,066 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6cb62dcf-a5bc-4721-8740-8a35e4bec5af/bin/utaipan/witness.graphml [2019-11-26 02:22:54,066 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:22:54,068 INFO L168 Benchmark]: Toolchain (without parser) took 1202.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 957.8 MB in the beginning and 1.0 GB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,069 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:22:54,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.62 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,070 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,070 INFO L168 Benchmark]: Boogie Preprocessor took 28.39 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,071 INFO L168 Benchmark]: RCFGBuilder took 275.30 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,071 INFO L168 Benchmark]: TraceAbstraction took 566.52 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,072 INFO L168 Benchmark]: Witness Printer took 44.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:22:54,075 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 200.62 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 102.2 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -158.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.39 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 275.30 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: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 566.52 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 44.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant [2019-11-26 02:22:54,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,082 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:22:54,083 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728))) == fp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 69 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...