./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13.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_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/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 f0b260d5621e751a2a11e1abae0e8375b5cfb29c .................................................................................................................................................................................................................................. 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_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/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 f0b260d5621e751a2a11e1abae0e8375b5cfb29c ............................................................................................................................................................................................................................................................................................................................................. 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 02:31:45,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:31:45,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:31:45,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:31:46,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:31:46,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:31:46,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:31:46,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:31:46,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:31:46,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:31:46,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:31:46,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:31:46,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:31:46,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:31:46,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:31:46,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:31:46,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:31:46,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:31:46,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:31:46,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:31:46,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:31:46,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:31:46,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:31:46,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:31:46,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:31:46,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:31:46,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:31:46,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:31:46,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:31:46,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:31:46,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:31:46,051 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:31:46,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:31:46,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:31:46,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:31:46,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:31:46,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:31:46,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:31:46,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:31:46,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:31:46,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:31:46,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:31:46,082 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:31:46,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:31:46,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:31:46,083 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:31:46,084 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:31:46,084 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:31:46,084 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:31:46,084 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:31:46,084 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:31:46,085 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:31:46,085 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:31:46,085 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:31:46,085 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:31:46,085 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:31:46,086 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:31:46,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:31:46,086 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:31:46,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:31:46,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:31:46,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:31:46,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:31:46,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:31:46,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:31:46,087 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:31:46,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:31:46,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:31:46,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:31:46,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:31:46,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:31:46,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:31:46,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:31:46,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:31:46,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:31:46,089 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:31:46,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:31:46,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:31:46,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:31:46,090 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_c4d42374-4e9a-431a-8cc3-489593566a42/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 -> f0b260d5621e751a2a11e1abae0e8375b5cfb29c [2019-11-26 02:31:46,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:31:46,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:31:46,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:31:46,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:31:46,263 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:31:46,263 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-26 02:31:46,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/5e1bb6d09/28f94f8103fd4cb4a90f542142bb3aee/FLAG202788a14 [2019-11-26 02:31:46,659 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:31:46,660 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-26 02:31:46,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/5e1bb6d09/28f94f8103fd4cb4a90f542142bb3aee/FLAG202788a14 [2019-11-26 02:31:46,676 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/5e1bb6d09/28f94f8103fd4cb4a90f542142bb3aee [2019-11-26 02:31:46,678 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:31:46,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:31:46,680 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:46,680 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:31:46,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:31:46,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@299fdc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46, skipping insertion in model container [2019-11-26 02:31:46,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:31:46,708 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:31:46,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:46,846 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:31:46,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:46,941 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:31:46,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46 WrapperNode [2019-11-26 02:31:46,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:46,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:46,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:31:46,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:31:46,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:46,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:31:46,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:31:46,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:31:46,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:46,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... [2019-11-26 02:31:47,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:31:47,000 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:31:47,001 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:31:47,001 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:31:47,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/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 02:31:47,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:31:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:31:47,365 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:31:47,365 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:31:47,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:47 BoogieIcfgContainer [2019-11-26 02:31:47,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:31:47,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:31:47,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:31:47,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:31:47,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:31:46" (1/3) ... [2019-11-26 02:31:47,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476b3671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:47, skipping insertion in model container [2019-11-26 02:31:47,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:46" (2/3) ... [2019-11-26 02:31:47,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476b3671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:47, skipping insertion in model container [2019-11-26 02:31:47,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:47" (3/3) ... [2019-11-26 02:31:47,374 INFO L109 eAbstractionObserver]: Analyzing ICFG float13.c [2019-11-26 02:31:47,383 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:31:47,388 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-26 02:31:47,400 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-26 02:31:47,422 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:31:47,422 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:31:47,423 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:31:47,423 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:31:47,423 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:31:47,423 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:31:47,423 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:31:47,423 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:31:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-26 02:31:47,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 02:31:47,444 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:47,444 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-26 02:31:47,445 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:47,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:47,450 INFO L82 PathProgramCache]: Analyzing trace with hash 104910, now seen corresponding path program 1 times [2019-11-26 02:31:47,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:31:47,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204507945] [2019-11-26 02:31:47,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:31:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:31:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:31:47,569 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:31:47,569 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:31:47,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:31:47 BoogieIcfgContainer [2019-11-26 02:31:47,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:31:47,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:31:47,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:31:47,585 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:31:47,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:47" (3/4) ... [2019-11-26 02:31:47,589 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:31:47,589 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:31:47,591 INFO L168 Benchmark]: Toolchain (without parser) took 910.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:31:47,592 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 02:31:47,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:47,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.81 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 02:31:47,594 INFO L168 Benchmark]: Boogie Preprocessor took 26.43 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:47,595 INFO L168 Benchmark]: RCFGBuilder took 366.23 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:47,596 INFO L168 Benchmark]: TraceAbstraction took 217.41 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:47,596 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 02:31:47,604 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 262.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.81 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 26.43 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 366.23 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: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 217.41 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: 10.7 MB). Peak memory consumption was 10.7 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: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 3. Possible FailurePath: [L3] const float plus_infinity = 1.0f/0.0f; [L4] const float minus_infinity = 0.0f/-0.0f; [L5] const float NaN = 0.0f * (1.0f/0.0f); [L9] _Bool temp; [L12] temp = NaN < plus_infinity [L13] COND TRUE !(!temp) [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 8 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=34occurred 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 02:31:49,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:31:49,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:31:49,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:31:49,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:31:49,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:31:49,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:31:49,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:31:49,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:31:49,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:31:49,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:31:49,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:31:49,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:31:49,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:31:49,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:31:49,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:31:49,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:31:49,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:31:49,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:31:49,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:31:49,494 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:31:49,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:31:49,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:31:49,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:31:49,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:31:49,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:31:49,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:31:49,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:31:49,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:31:49,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:31:49,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:31:49,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:31:49,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:31:49,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:31:49,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:31:49,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:31:49,510 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:31:49,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:31:49,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:31:49,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:31:49,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:31:49,513 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:31:49,540 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:31:49,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:31:49,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:31:49,541 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:31:49,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:31:49,542 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:31:49,542 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:31:49,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:31:49,542 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:31:49,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:31:49,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:31:49,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:31:49,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:31:49,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:31:49,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:31:49,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:31:49,545 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:31:49,545 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:31:49,545 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:31:49,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:31:49,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:31:49,546 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:31:49,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:31:49,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:31:49,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:31:49,546 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:31:49,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:31:49,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:31:49,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:31:49,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:31:49,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:31:49,548 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:31:49,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:31:49,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:31:49,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:31:49,559 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_c4d42374-4e9a-431a-8cc3-489593566a42/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 -> f0b260d5621e751a2a11e1abae0e8375b5cfb29c [2019-11-26 02:31:49,826 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:31:49,843 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:31:49,845 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:31:49,847 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:31:49,847 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:31:49,848 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-26 02:31:49,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/45c6d487c/6353dbcf13a54149a1f97c50b96cf28a/FLAG748c4a73e [2019-11-26 02:31:50,278 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:31:50,279 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/sv-benchmarks/c/floats-cbmc-regression/float13.c [2019-11-26 02:31:50,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/45c6d487c/6353dbcf13a54149a1f97c50b96cf28a/FLAG748c4a73e [2019-11-26 02:31:50,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/data/45c6d487c/6353dbcf13a54149a1f97c50b96cf28a [2019-11-26 02:31:50,709 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:31:50,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:31:50,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:50,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:31:50,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:31:50,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:50,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c93301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50, skipping insertion in model container [2019-11-26 02:31:50,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:50,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:31:50,746 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:31:50,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:50,895 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:31:50,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:31:50,931 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:31:50,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50 WrapperNode [2019-11-26 02:31:50,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:31:50,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:50,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:31:50,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:31:50,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:50,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:31:51,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:31:51,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:31:51,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:31:51,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... [2019-11-26 02:31:51,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:31:51,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:31:51,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:31:51,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:31:51,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/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 02:31:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:31:51,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:31:51,331 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:31:51,331 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:31:51,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:51 BoogieIcfgContainer [2019-11-26 02:31:51,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:31:51,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:31:51,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:31:51,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:31:51,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:31:50" (1/3) ... [2019-11-26 02:31:51,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb7a862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:51, skipping insertion in model container [2019-11-26 02:31:51,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:31:50" (2/3) ... [2019-11-26 02:31:51,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3eb7a862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:31:51, skipping insertion in model container [2019-11-26 02:31:51,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:51" (3/3) ... [2019-11-26 02:31:51,338 INFO L109 eAbstractionObserver]: Analyzing ICFG float13.c [2019-11-26 02:31:51,348 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:31:51,355 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-11-26 02:31:51,388 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-11-26 02:31:51,412 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:31:51,414 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:31:51,414 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:31:51,414 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:31:51,415 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:31:51,415 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:31:51,416 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:31:51,416 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:31:51,438 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-26 02:31:51,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:31:51,442 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:31:51,443 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:31:51,443 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:31:51,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:31:51,448 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-11-26 02:31:51,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:31:51,460 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675815020] [2019-11-26 02:31:51,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/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 02:31:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:31:51,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-26 02:31:51,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:31:51,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:31:51,613 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 02:31:51,614 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:31:51,680 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 02:31:51,681 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675815020] [2019-11-26 02:31:51,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:31:51,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-26 02:31:51,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892213046] [2019-11-26 02:31:51,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:31:51,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:31:51,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:31:51,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:31:51,697 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 5 states. [2019-11-26 02:31:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:31:51,857 INFO L93 Difference]: Finished difference Result 55 states and 68 transitions. [2019-11-26 02:31:51,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:31:51,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-11-26 02:31:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:31:51,864 INFO L225 Difference]: With dead ends: 55 [2019-11-26 02:31:51,864 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:31:51,867 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:31:51,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:31:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:31:51,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:31:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:31:51,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-26 02:31:51,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:31:51,888 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:31:51,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:31:51,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:31:51,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:31:52,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:31:52,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:31:52,167 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2019-11-26 02:31:52,167 INFO L444 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-26 02:31:52,167 INFO L444 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-11-26 02:31:52,167 INFO L444 ceAbstractionStarter]: For program point L31-3(line 31) no Hoare annotation was computed. [2019-11-26 02:31:52,167 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-11-26 02:31:52,167 INFO L444 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-26 02:31:52,168 INFO L444 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2019-11-26 02:31:52,168 INFO L444 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2019-11-26 02:31:52,168 INFO L440 ceAbstractionStarter]: At program point L36(lines 7 37) the Hoare annotation is: (and (= (_ bv0 8) ULTIMATE.start_main_~temp~0) (exists ((currentRoundingMode RoundingMode)) (= ~NaN~0 (fp.mul currentRoundingMode (_ +zero 8 24) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))))) [2019-11-26 02:31:52,168 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:31:52,168 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point L28-3(line 28) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-26 02:31:52,169 INFO L444 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-11-26 02:31:52,170 INFO L444 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2019-11-26 02:31:52,170 INFO L444 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2019-11-26 02:31:52,171 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:31:52,171 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2019-11-26 02:31:52,171 INFO L444 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2019-11-26 02:31:52,171 INFO L444 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2019-11-26 02:31:52,171 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-11-26 02:31:52,172 INFO L444 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2019-11-26 02:31:52,172 INFO L444 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-26 02:31:52,172 INFO L444 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-11-26 02:31:52,172 INFO L444 ceAbstractionStarter]: For program point L13-3(line 13) no Hoare annotation was computed. [2019-11-26 02:31:52,172 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-26 02:31:52,173 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2019-11-26 02:31:52,173 INFO L444 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2019-11-26 02:31:52,173 INFO L444 ceAbstractionStarter]: For program point L34-3(line 34) no Hoare annotation was computed. [2019-11-26 02:31:52,173 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2019-11-26 02:31:52,173 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-26 02:31:52,174 INFO L444 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-26 02:31:52,174 INFO L444 ceAbstractionStarter]: For program point L22-3(line 22) no Hoare annotation was computed. [2019-11-26 02:31:52,179 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,180 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,187 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:31:52 BoogieIcfgContainer [2019-11-26 02:31:52,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:31:52,191 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:31:52,191 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:31:52,191 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:31:52,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:31:51" (3/4) ... [2019-11-26 02:31:52,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:31:52,211 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:31:52,212 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:31:52,250 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) [2019-11-26 02:31:52,278 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c4d42374-4e9a-431a-8cc3-489593566a42/bin/utaipan/witness.graphml [2019-11-26 02:31:52,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:31:52,280 INFO L168 Benchmark]: Toolchain (without parser) took 1569.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -110.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:52,281 INFO L168 Benchmark]: CDTParser took 0.17 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 02:31:52,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.02 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:52,282 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:52,283 INFO L168 Benchmark]: Boogie Preprocessor took 31.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:52,283 INFO L168 Benchmark]: RCFGBuilder took 274.44 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:52,284 INFO L168 Benchmark]: TraceAbstraction took 857.48 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: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:31:52,284 INFO L168 Benchmark]: Witness Printer took 88.12 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 02:31:52,287 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 217.02 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 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 91.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 274.44 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 857.48 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: 41.3 MB). Peak memory consumption was 41.3 MB. Max. memory is 11.5 GB. * Witness Printer took 88.12 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.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: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 28]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 19]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant [2019-11-26 02:31:52,303 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,303 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,303 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-26 02:31:52,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 8 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 23 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 2 QuantifiedInterpolants, 75 SizeOfPredicates, 4 NumberOfNonLiveVariables, 9 ConjunctsInSsa, 3 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...