./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad220425e59782d2842875bc5488a6e9ea4ef5ae ............................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ad220425e59782d2842875bc5488a6e9ea4ef5ae ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:44:26,949 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:44:26,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:44:27,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:44:27,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:44:27,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:44:27,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:44:27,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:44:27,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:44:27,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:44:27,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:44:27,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:44:27,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:44:27,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:44:27,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:44:27,046 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:44:27,047 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:44:27,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:44:27,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:44:27,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:44:27,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:44:27,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:44:27,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:44:27,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:44:27,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:44:27,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:44:27,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:44:27,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:44:27,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:44:27,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:44:27,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:44:27,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:44:27,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:44:27,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:44:27,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:44:27,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:44:27,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:44:27,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:44:27,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:44:27,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:44:27,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:44:27,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:44:27,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:44:27,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:44:27,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:44:27,132 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:44:27,133 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:44:27,133 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:44:27,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:44:27,133 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:44:27,133 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:44:27,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:44:27,135 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:44:27,135 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:44:27,135 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:44:27,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:44:27,136 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:44:27,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:44:27,137 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:44:27,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:44:27,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:44:27,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:44:27,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:44:27,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:44:27,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:44:27,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:44:27,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:44:27,138 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:44:27,139 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:44:27,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:44:27,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:44:27,141 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:44:27,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:44:27,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:44:27,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:44:27,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:44:27,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:44:27,142 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:44:27,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:44:27,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:44:27,143 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:44:27,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:44:27,143 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-11-28 07:44:27,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:44:27,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:44:27,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:44:27,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:44:27,453 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:44:27,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-28 07:44:27,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/a41b5dcef/dcaf7bbb8e6a41ff974697b612c14366/FLAG5eeae15fd [2020-11-28 07:44:28,052 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:44:28,053 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-28 07:44:28,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/a41b5dcef/dcaf7bbb8e6a41ff974697b612c14366/FLAG5eeae15fd [2020-11-28 07:44:28,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/a41b5dcef/dcaf7bbb8e6a41ff974697b612c14366 [2020-11-28 07:44:28,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:44:28,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:44:28,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:44:28,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:44:28,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:44:28,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29237182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28, skipping insertion in model container [2020-11-28 07:44:28,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:44:28,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:44:28,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:44:28,700 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:44:28,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:44:28,736 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:44:28,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28 WrapperNode [2020-11-28 07:44:28,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:44:28,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:44:28,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:44:28,737 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:44:28,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:44:28,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:44:28,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:44:28,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:44:28,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... [2020-11-28 07:44:28,787 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:44:28,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:44:28,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:44:28,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:44:28,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:44:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:44:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:44:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:44:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:44:29,319 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:44:29,319 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:44:29,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:44:29 BoogieIcfgContainer [2020-11-28 07:44:29,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:44:29,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:44:29,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:44:29,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:44:29,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:44:28" (1/3) ... [2020-11-28 07:44:29,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b8addf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:44:29, skipping insertion in model container [2020-11-28 07:44:29,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:28" (2/3) ... [2020-11-28 07:44:29,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b8addf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:44:29, skipping insertion in model container [2020-11-28 07:44:29,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:44:29" (3/3) ... [2020-11-28 07:44:29,329 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-11-28 07:44:29,344 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:44:29,355 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:44:29,366 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:44:29,389 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:44:29,390 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:44:29,390 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:44:29,390 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:44:29,390 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:44:29,390 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:44:29,390 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:44:29,390 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:44:29,402 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-28 07:44:29,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:44:29,407 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:44:29,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:44:29,408 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:44:29,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:44:29,413 INFO L82 PathProgramCache]: Analyzing trace with hash 46289, now seen corresponding path program 1 times [2020-11-28 07:44:29,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:44:29,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850563814] [2020-11-28 07:44:29,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:44:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:44:29,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:44:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:44:29,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:44:29,636 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:44:29,637 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:44:29,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:44:29,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:44:29 BoogieIcfgContainer [2020-11-28 07:44:29,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:44:29,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:44:29,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:44:29,666 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:44:29,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:44:29" (3/4) ... [2020-11-28 07:44:29,669 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:44:29,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:44:29,674 INFO L168 Benchmark]: Toolchain (without parser) took 1249.74 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 59.8 MB in the beginning and 88.2 MB in the end (delta: -28.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:29,675 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 75.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:29,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.04 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 71.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:29,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.31 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:29,680 INFO L168 Benchmark]: Boogie Preprocessor took 18.10 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.7 MB in the end (delta: 895.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:29,682 INFO L168 Benchmark]: RCFGBuilder took 533.52 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 56.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:29,683 INFO L168 Benchmark]: TraceAbstraction took 340.38 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.7 MB in the beginning and 88.6 MB in the end (delta: -32.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:29,684 INFO L168 Benchmark]: Witness Printer took 4.43 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 88.2 MB in the end (delta: 437.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:29,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory is still 75.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.04 ms. Allocated memory is still 94.4 MB. Free memory was 59.7 MB in the beginning and 71.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.31 ms. Allocated memory is still 94.4 MB. Free memory was 70.9 MB in the beginning and 69.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.10 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 68.7 MB in the end (delta: 895.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 533.52 ms. Allocated memory is still 94.4 MB. Free memory was 68.7 MB in the beginning and 56.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 340.38 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 55.7 MB in the beginning and 88.6 MB in the end (delta: -32.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.43 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 88.2 MB in the end (delta: 437.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: 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 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L3] __assert_fail("0", "float-no-simp7.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:44:32,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:44:32,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:44:32,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:44:32,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:44:32,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:44:32,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:44:32,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:44:32,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:44:32,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:44:32,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:44:32,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:44:32,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:44:32,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:44:32,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:44:32,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:44:32,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:44:32,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:44:32,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:44:32,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:44:32,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:44:32,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:44:32,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:44:32,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:44:32,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:44:32,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:44:32,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:44:32,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:44:32,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:44:32,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:44:32,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:44:32,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:44:32,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:44:32,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:44:32,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:44:32,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:44:32,291 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:44:32,291 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:44:32,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:44:32,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:44:32,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:44:32,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:44:32,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:44:32,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:44:32,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:44:32,339 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:44:32,339 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:44:32,339 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:44:32,339 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:44:32,340 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:44:32,340 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:44:32,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:44:32,342 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:44:32,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:44:32,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:44:32,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:44:32,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:44:32,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:44:32,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:44:32,344 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:44:32,344 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:44:32,344 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:44:32,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:44:32,344 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:44:32,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:44:32,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:44:32,345 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:44:32,345 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:44:32,345 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:44:32,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:44:32,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:44:32,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:44:32,346 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:44:32,346 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:44:32,347 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:44:32,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:44:32,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:44:32,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:44:32,347 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-11-28 07:44:32,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:44:32,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:44:32,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:44:32,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:44:32,727 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:44:32,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-28 07:44:32,797 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/6ece208d4/36d5fcd5fc784471b0390838271ee0bd/FLAG6e693691a [2020-11-28 07:44:33,386 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:44:33,390 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-28 07:44:33,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/6ece208d4/36d5fcd5fc784471b0390838271ee0bd/FLAG6e693691a [2020-11-28 07:44:33,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/data/6ece208d4/36d5fcd5fc784471b0390838271ee0bd [2020-11-28 07:44:33,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:44:33,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:44:33,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:44:33,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:44:33,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:44:33,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:33,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24baa7a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33, skipping insertion in model container [2020-11-28 07:44:33,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:33,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:44:33,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:44:33,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:44:33,921 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:44:33,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:44:33,956 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:44:33,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33 WrapperNode [2020-11-28 07:44:33,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:44:33,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:44:33,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:44:33,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:44:33,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:33,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:33,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:44:33,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:44:33,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:44:33,992 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:44:34,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... [2020-11-28 07:44:34,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:44:34,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:44:34,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:44:34,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:44:34,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:44:34,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:44:34,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:44:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:44:34,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:44:34,588 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:44:34,588 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:44:34,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:44:34 BoogieIcfgContainer [2020-11-28 07:44:34,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:44:34,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:44:34,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:44:34,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:44:34,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:44:33" (1/3) ... [2020-11-28 07:44:34,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cbe3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:44:34, skipping insertion in model container [2020-11-28 07:44:34,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:44:33" (2/3) ... [2020-11-28 07:44:34,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27cbe3ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:44:34, skipping insertion in model container [2020-11-28 07:44:34,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:44:34" (3/3) ... [2020-11-28 07:44:34,613 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-11-28 07:44:34,624 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:44:34,628 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:44:34,640 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:44:34,664 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:44:34,664 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:44:34,664 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:44:34,664 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:44:34,665 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:44:34,665 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:44:34,665 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:44:34,665 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:44:34,677 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 07:44:34,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:44:34,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:44:34,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:44:34,683 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:44:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:44:34,689 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 07:44:34,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:44:34,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972153911] [2020-11-28 07:44:34,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:44:34,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:44:34,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 07:44:34,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:44:35,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:44:35,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:44:35,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:44:35,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972153911] [2020-11-28 07:44:35,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:44:35,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:44:35,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631133283] [2020-11-28 07:44:35,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:44:35,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:44:35,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:44:35,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:44:35,141 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-11-28 07:44:35,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:44:35,288 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-28 07:44:35,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:44:35,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-11-28 07:44:35,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:44:35,298 INFO L225 Difference]: With dead ends: 14 [2020-11-28 07:44:35,299 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:44:35,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:44:35,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:44:35,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:44:35,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:44:35,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:44:35,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 07:44:35,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:44:35,335 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:44:35,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:44:35,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:44:35,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:44:35,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:44:35,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:44:35,620 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:44:35,620 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:44:35,620 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:44:35,620 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:44:35,621 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:44:35,621 INFO L270 CegarLoopResult]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0)))) ULTIMATE.start_main_~result~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_main_~target~0 (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))))) [2020-11-28 07:44:35,621 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 07:44:35,622 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 07:44:35,622 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:44:35,622 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:44:35,631 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,632 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,633 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:44:35,637 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,637 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,637 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,638 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,638 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,638 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:44:35,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:44:35 BoogieIcfgContainer [2020-11-28 07:44:35,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:44:35,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:44:35,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:44:35,641 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:44:35,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:44:34" (3/4) ... [2020-11-28 07:44:35,645 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:44:35,654 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 07:44:35,654 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 07:44:35,655 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:44:35,655 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:44:35,705 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2aead84f-3fa9-44d7-a70b-66c24a377f1a/bin/utaipan/witness.graphml [2020-11-28 07:44:35,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:44:35,708 INFO L168 Benchmark]: Toolchain (without parser) took 1979.46 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 56.8 MB in the beginning and 66.8 MB in the end (delta: -9.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:35,708 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:35,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.97 ms. Allocated memory is still 73.4 MB. Free memory was 56.5 MB in the beginning and 46.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:35,710 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 73.4 MB. Free memory was 46.3 MB in the beginning and 44.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:44:35,711 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 73.4 MB. Free memory was 44.9 MB in the beginning and 43.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:35,715 INFO L168 Benchmark]: RCFGBuilder took 573.59 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 54.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:35,719 INFO L168 Benchmark]: TraceAbstraction took 1048.62 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 69.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:35,722 INFO L168 Benchmark]: Witness Printer took 64.59 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 66.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:44:35,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory is still 56.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 228.97 ms. Allocated memory is still 73.4 MB. Free memory was 56.5 MB in the beginning and 46.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 73.4 MB. Free memory was 46.3 MB in the beginning and 44.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.62 ms. Allocated memory is still 73.4 MB. Free memory was 44.9 MB in the beginning and 43.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 573.59 ms. Allocated memory is still 73.4 MB. Free memory was 43.7 MB in the beginning and 54.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1048.62 ms. Allocated memory was 73.4 MB in the beginning and 92.3 MB in the end (delta: 18.9 MB). Free memory was 53.5 MB in the beginning and 69.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Witness Printer took 64.59 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 66.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 5]: Loop Invariant [2020-11-28 07:44:35,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:44:35,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:44:35,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) == result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && target == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...