./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ab995f7fc826665e07ee96ac8969470b0927c50 ........................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ab995f7fc826665e07ee96ac8969470b0927c50 ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:26:14,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:26:14,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:26:14,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:26:14,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:26:14,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:26:14,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:26:14,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:26:14,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:26:14,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:26:14,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:26:14,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:26:14,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:26:14,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:26:14,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:26:14,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:26:14,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:26:14,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:26:14,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:26:14,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:26:14,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:26:14,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:26:14,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:26:14,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:26:14,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:26:14,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:26:14,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:26:14,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:26:14,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:26:14,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:26:14,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:26:14,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:26:14,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:26:14,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:26:14,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:26:14,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:26:14,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:26:14,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:26:14,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:26:14,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:26:14,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:26:14,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:26:14,062 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:26:14,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:26:14,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:26:14,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:26:14,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:26:14,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:26:14,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:26:14,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:26:14,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:26:14,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-12-07 17:26:14,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:26:14,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:26:14,181 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:26:14,183 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:26:14,183 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:26:14,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-12-07 17:26:14,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/9ea33cb7f/b89dfc60396f45ec9bdc3c13217a374d/FLAGc378808e5 [2019-12-07 17:26:14,541 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:26:14,541 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-12-07 17:26:14,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/9ea33cb7f/b89dfc60396f45ec9bdc3c13217a374d/FLAGc378808e5 [2019-12-07 17:26:14,554 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/9ea33cb7f/b89dfc60396f45ec9bdc3c13217a374d [2019-12-07 17:26:14,556 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:26:14,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:26:14,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:26:14,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:26:14,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:26:14,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@514aafbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14, skipping insertion in model container [2019-12-07 17:26:14,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:26:14,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:26:14,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:26:14,683 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:26:14,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:26:14,745 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:26:14,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14 WrapperNode [2019-12-07 17:26:14,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:26:14,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:26:14,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:26:14,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:26:14,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:26:14,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:26:14,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:26:14,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:26:14,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... [2019-12-07 17:26:14,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:26:14,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:26:14,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:26:14,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:26:14,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:26:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:26:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:26:14,890 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:26:14,890 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 17:26:14,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:14 BoogieIcfgContainer [2019-12-07 17:26:14,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:26:14,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:26:14,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:26:14,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:26:14,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:26:14" (1/3) ... [2019-12-07 17:26:14,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f09e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:26:14, skipping insertion in model container [2019-12-07 17:26:14,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:14" (2/3) ... [2019-12-07 17:26:14,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f09e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:26:14, skipping insertion in model container [2019-12-07 17:26:14,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:14" (3/3) ... [2019-12-07 17:26:14,897 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-12-07 17:26:14,903 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:26:14,908 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:26:14,916 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:26:14,932 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:26:14,932 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:26:14,932 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:26:14,932 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:26:14,932 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:26:14,932 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:26:14,932 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:26:14,933 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:26:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 17:26:14,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 17:26:14,946 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:26:14,946 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 17:26:14,946 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:26:14,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:14,950 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-12-07 17:26:14,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:26:14,956 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702487698] [2019-12-07 17:26:14,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:26:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 17:26:15,016 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 17:26:15,016 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 17:26:15,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:26:15 BoogieIcfgContainer [2019-12-07 17:26:15,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:26:15,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:26:15,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:26:15,026 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:26:15,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:14" (3/4) ... [2019-12-07 17:26:15,029 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 17:26:15,029 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:26:15,030 INFO L168 Benchmark]: Toolchain (without parser) took 473.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -125.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:15,031 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:15,032 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:15,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:15,032 INFO L168 Benchmark]: Boogie Preprocessor took 10.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:15,033 INFO L168 Benchmark]: RCFGBuilder took 113.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:15,033 INFO L168 Benchmark]: TraceAbstraction took 134.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:15,033 INFO L168 Benchmark]: Witness Printer took 2.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:15,036 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 113.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 134.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.90 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; [L9] COND TRUE !(d == fp) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.0s, 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=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 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 0.1.25-f470102 [2019-12-07 17:26:16,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:26:16,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:26:16,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:26:16,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:26:16,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:26:16,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:26:16,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:26:16,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:26:16,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:26:16,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:26:16,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:26:16,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:26:16,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:26:16,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:26:16,374 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:26:16,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:26:16,375 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:26:16,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:26:16,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:26:16,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:26:16,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:26:16,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:26:16,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:26:16,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:26:16,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:26:16,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:26:16,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:26:16,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:26:16,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:26:16,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:26:16,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:26:16,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:26:16,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:26:16,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:26:16,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:26:16,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:26:16,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:26:16,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:26:16,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:26:16,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:26:16,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 17:26:16,401 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:26:16,401 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:26:16,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:26:16,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:26:16,402 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:26:16,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:26:16,402 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:26:16,402 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 17:26:16,403 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:26:16,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:26:16,404 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:26:16,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:26:16,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:26:16,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:26:16,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:26:16,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:26:16,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:26:16,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:26:16,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:26:16,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:26:16,405 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 17:26:16,405 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 17:26:16,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:26:16,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:26:16,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 17:26:16,406 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_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-12-07 17:26:16,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:26:16,589 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:26:16,592 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:26:16,593 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:26:16,593 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:26:16,594 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-12-07 17:26:16,637 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/c00f009b9/df15f2ab20154bbaaa713d38fc6c6c59/FLAGaaf9ef0a8 [2019-12-07 17:26:16,957 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:26:16,957 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-12-07 17:26:16,961 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/c00f009b9/df15f2ab20154bbaaa713d38fc6c6c59/FLAGaaf9ef0a8 [2019-12-07 17:26:16,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/data/c00f009b9/df15f2ab20154bbaaa713d38fc6c6c59 [2019-12-07 17:26:16,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:26:16,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:26:16,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:26:16,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:26:16,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:26:16,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:26:16" (1/1) ... [2019-12-07 17:26:16,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@447048ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:16, skipping insertion in model container [2019-12-07 17:26:16,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:26:16" (1/1) ... [2019-12-07 17:26:16,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:26:16,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:26:17,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:26:17,111 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:26:17,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:26:17,134 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:26:17,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17 WrapperNode [2019-12-07 17:26:17,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:26:17,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:26:17,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:26:17,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:26:17,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:26:17,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:26:17,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:26:17,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:26:17,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... [2019-12-07 17:26:17,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:26:17,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:26:17,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:26:17,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:26:17,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:26:17,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:26:17,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:26:17,350 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:26:17,350 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 17:26:17,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:17 BoogieIcfgContainer [2019-12-07 17:26:17,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:26:17,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:26:17,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:26:17,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:26:17,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:26:16" (1/3) ... [2019-12-07 17:26:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccea56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:26:17, skipping insertion in model container [2019-12-07 17:26:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:26:17" (2/3) ... [2019-12-07 17:26:17,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ccea56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:26:17, skipping insertion in model container [2019-12-07 17:26:17,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:17" (3/3) ... [2019-12-07 17:26:17,356 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-12-07 17:26:17,363 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:26:17,367 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:26:17,374 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:26:17,388 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:26:17,388 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:26:17,389 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:26:17,389 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:26:17,389 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:26:17,389 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:26:17,389 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:26:17,389 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:26:17,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 17:26:17,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 17:26:17,401 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:26:17,401 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 17:26:17,401 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:26:17,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:26:17,405 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2019-12-07 17:26:17,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 17:26:17,412 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1194517715] [2019-12-07 17:26:17,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/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 [2019-12-07 17:26:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:26:17,446 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 17:26:17,449 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:26:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:26:17,501 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 17:26:17,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:26:17,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1194517715] [2019-12-07 17:26:17,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:26:17,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 17:26:17,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150195048] [2019-12-07 17:26:17,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 17:26:17,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 17:26:17,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 17:26:17,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:26:17,535 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-12-07 17:26:17,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:26:17,551 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-12-07 17:26:17,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 17:26:17,553 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-12-07 17:26:17,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:26:17,558 INFO L225 Difference]: With dead ends: 13 [2019-12-07 17:26:17,558 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:26:17,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 17:26:17,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:26:17,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:26:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:26:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:26:17,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-12-07 17:26:17,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:26:17,580 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:26:17,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 17:26:17,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:26:17,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:26:17,781 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 17:26:17,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:26:17,838 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:26:17,838 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 17:26:17,838 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:26:17,838 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:26:17,839 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 17:26:17,839 INFO L242 CegarLoopResult]: At program point L11(lines 3 12) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))) ULTIMATE.start_main_~d~0) (= ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0)))) ULTIMATE.start_main_~fp~0))) [2019-12-07 17:26:17,839 INFO L246 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2019-12-07 17:26:17,839 INFO L246 CegarLoopResult]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-12-07 17:26:17,839 INFO L246 CegarLoopResult]: For program point L9-3(line 9) no Hoare annotation was computed. [2019-12-07 17:26:17,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:26:17 BoogieIcfgContainer [2019-12-07 17:26:17,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:26:17,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:26:17,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:26:17,852 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:26:17,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:26:17" (3/4) ... [2019-12-07 17:26:17,854 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:26:17,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 17:26:17,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:26:17,861 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 17:26:17,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728))) == fp) [2019-12-07 17:26:17,885 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_85e3208e-4bfc-43a9-921b-2c6490a8a8b7/bin/uautomizer/witness.graphml [2019-12-07 17:26:17,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:26:17,886 INFO L168 Benchmark]: Toolchain (without parser) took 912.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -119.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,886 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:26:17,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,888 INFO L168 Benchmark]: Boogie Preprocessor took 14.38 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,888 INFO L168 Benchmark]: RCFGBuilder took 152.93 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: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,888 INFO L168 Benchmark]: TraceAbstraction took 499.59 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,889 INFO L168 Benchmark]: Witness Printer took 32.99 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 17:26:17,891 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 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 49.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -183.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.38 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 152.93 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: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 499.59 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * Witness Printer took 32.99 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant [2019-12-07 17:26:17,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 17:26:17,896 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) == d && ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728))) == fp) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 69 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...