./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.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_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 95131fbb90a45f134b236581750b2f1a3cba4d8c .......................................................................................................................................................................................................................................................................................................... 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_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 95131fbb90a45f134b236581750b2f1a3cba4d8c ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 12:05:31,980 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:05:31,981 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:05:31,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:05:31,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:05:31,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:05:31,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:05:31,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:05:31,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:05:31,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:05:31,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:05:31,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:05:31,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:05:31,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:05:31,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:05:31,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:05:31,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:05:31,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:05:32,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:05:32,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:05:32,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:05:32,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:05:32,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:05:32,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:05:32,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:05:32,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:05:32,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:05:32,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:05:32,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:05:32,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:05:32,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:05:32,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:05:32,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:05:32,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:05:32,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:05:32,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:05:32,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:05:32,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:05:32,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:05:32,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:05:32,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:05:32,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:05:32,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:05:32,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:05:32,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:05:32,022 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:05:32,022 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:05:32,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:05:32,023 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:05:32,023 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:05:32,023 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:05:32,023 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:05:32,023 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:05:32,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:05:32,024 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:05:32,024 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:05:32,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:05:32,024 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:05:32,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:05:32,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:05:32,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:05:32,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:05:32,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:05:32,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:05:32,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:05:32,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:05:32,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:05:32,025 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:05:32,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:05:32,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:05:32,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:05:32,026 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_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2019-12-07 12:05:32,123 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:05:32,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:05:32,136 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:05:32,137 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:05:32,138 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:05:32,138 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-12-07 12:05:32,174 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/af3a207ab/918e580185f846a1bc3b6844fb6ad4ba/FLAG1cd786904 [2019-12-07 12:05:32,515 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:05:32,515 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-12-07 12:05:32,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/af3a207ab/918e580185f846a1bc3b6844fb6ad4ba/FLAG1cd786904 [2019-12-07 12:05:32,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/af3a207ab/918e580185f846a1bc3b6844fb6ad4ba [2019-12-07 12:05:32,530 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:05:32,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:05:32,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:32,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:05:32,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:05:32,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fbb7866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32, skipping insertion in model container [2019-12-07 12:05:32,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:05:32,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:05:32,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:32,736 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:05:32,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:32,778 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:05:32,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32 WrapperNode [2019-12-07 12:05:32,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:32,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:32,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:05:32,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:05:32,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,792 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:32,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:05:32,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:05:32,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:05:32,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... [2019-12-07 12:05:32,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:05:32,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:05:32,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:05:32,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:05:32,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 12:05:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:05:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 12:05:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:05:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 12:05:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:05:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:05:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:05:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 12:05:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:05:33,069 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:05:33,069 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 12:05:33,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:33 BoogieIcfgContainer [2019-12-07 12:05:33,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:05:33,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:05:33,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:05:33,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:05:33,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:05:32" (1/3) ... [2019-12-07 12:05:33,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292e551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:33, skipping insertion in model container [2019-12-07 12:05:33,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:32" (2/3) ... [2019-12-07 12:05:33,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292e551f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:33, skipping insertion in model container [2019-12-07 12:05:33,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:33" (3/3) ... [2019-12-07 12:05:33,076 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2019-12-07 12:05:33,083 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:05:33,087 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:05:33,094 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:05:33,110 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:05:33,110 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:05:33,110 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:05:33,110 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:05:33,110 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:05:33,110 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:05:33,110 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:05:33,110 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:05:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 12:05:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 12:05:33,123 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:33,124 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:33,124 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:33,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:33,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2019-12-07 12:05:33,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:05:33,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039706110] [2019-12-07 12:05:33,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:33,233 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 12:05:33,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039706110] [2019-12-07 12:05:33,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:33,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:05:33,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658927563] [2019-12-07 12:05:33,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:05:33,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:05:33,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:05:33,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:05:33,247 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-12-07 12:05:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:33,259 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-12-07 12:05:33,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:05:33,260 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 12:05:33,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:33,267 INFO L225 Difference]: With dead ends: 64 [2019-12-07 12:05:33,267 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 12:05:33,269 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:05:33,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 12:05:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 12:05:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 12:05:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-12-07 12:05:33,292 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2019-12-07 12:05:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:33,292 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-12-07 12:05:33,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:05:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-12-07 12:05:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:05:33,293 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:33,293 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:33,293 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:33,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:33,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2019-12-07 12:05:33,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:05:33,293 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579932371] [2019-12-07 12:05:33,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:05:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:05:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:05:33,369 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:05:33,369 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:05:33,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:05:33 BoogieIcfgContainer [2019-12-07 12:05:33,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:05:33,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:05:33,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:05:33,394 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:05:33,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:33" (3/4) ... [2019-12-07 12:05:33,397 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:05:33,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:05:33,399 INFO L168 Benchmark]: Toolchain (without parser) took 867.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -78.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:33,399 INFO L168 Benchmark]: CDTParser took 0.15 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 12:05:33,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:33,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.91 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 12:05:33,400 INFO L168 Benchmark]: Boogie Preprocessor took 23.23 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 12:05:33,400 INFO L168 Benchmark]: RCFGBuilder took 235.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:33,401 INFO L168 Benchmark]: TraceAbstraction took 322.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:05:33,401 INFO L168 Benchmark]: Witness Printer took 3.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:05:33,403 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 247.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.91 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 23.23 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 235.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 322.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (hx) = gf_u.word [L65] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] float res = atan_float(x); [L15] return x != x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 12:05:34,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:05:34,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:05:34,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-12-07 12:05:34,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:05:34,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:05:34,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:05:34,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:05:34,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:05:34,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:05:34,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:05:34,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:05:34,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:05:34,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:05:34,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:05:34,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:05:34,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-07 12:05:34,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:05:34,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:05:34,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:05:34,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:05:34,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:05:34,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:05:34,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:05:34,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:05:34,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:05:34,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:05:34,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:05:34,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:05:34,759 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:05:34,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:05:34,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:05:34,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:05:34,760 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:05:34,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:05:34,760 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:05:34,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:05:34,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:05:34,761 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:05:34,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:05:34,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:05:34,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:05:34,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:05:34,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:05:34,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:05:34,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:05:34,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:05:34,763 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_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2019-12-07 12:05:34,943 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:05:34,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:05:34,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:05:34,958 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:05:34,959 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:05:34,959 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-12-07 12:05:35,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/79ce08c5b/2a51ff0870694eb196351836e3d347f8/FLAG7b66a001e [2019-12-07 12:05:35,345 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:05:35,345 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2019-12-07 12:05:35,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/79ce08c5b/2a51ff0870694eb196351836e3d347f8/FLAG7b66a001e [2019-12-07 12:05:35,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/data/79ce08c5b/2a51ff0870694eb196351836e3d347f8 [2019-12-07 12:05:35,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:05:35,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:05:35,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:35,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:05:35,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:05:35,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93bee15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35, skipping insertion in model container [2019-12-07 12:05:35,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:05:35,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:05:35,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:35,519 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:05:35,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:05:35,597 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:05:35,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35 WrapperNode [2019-12-07 12:05:35,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:05:35,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:35,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:05:35,598 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:05:35,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:05:35,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:05:35,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:05:35,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:05:35,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... [2019-12-07 12:05:35,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:05:35,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:05:35,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:05:35,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:05:35,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 12:05:35,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:05:35,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:05:35,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:05:43,403 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:05:43,403 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 12:05:43,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:43 BoogieIcfgContainer [2019-12-07 12:05:43,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:05:43,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:05:43,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:05:43,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:05:43,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:05:35" (1/3) ... [2019-12-07 12:05:43,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6184d754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:43, skipping insertion in model container [2019-12-07 12:05:43,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:05:35" (2/3) ... [2019-12-07 12:05:43,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6184d754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:05:43, skipping insertion in model container [2019-12-07 12:05:43,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:43" (3/3) ... [2019-12-07 12:05:43,408 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2019-12-07 12:05:43,414 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:05:43,419 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:05:43,426 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:05:43,440 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:05:43,440 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:05:43,440 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:05:43,440 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:05:43,440 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:05:43,440 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:05:43,440 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:05:43,440 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:05:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-12-07 12:05:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 12:05:43,453 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:43,454 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:43,454 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:43,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:43,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2019-12-07 12:05:43,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:05:43,466 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032447982] [2019-12-07 12:05:43,466 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/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 12:05:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:44,280 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:05:44,284 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:05:44,295 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 12:05:44,295 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:05:44,298 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 12:05:44,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032447982] [2019-12-07 12:05:44,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:44,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:05:44,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948414726] [2019-12-07 12:05:44,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:05:44,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:05:44,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:05:44,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:05:44,314 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-12-07 12:05:44,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:05:44,327 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-12-07 12:05:44,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:05:44,328 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 12:05:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:05:44,336 INFO L225 Difference]: With dead ends: 64 [2019-12-07 12:05:44,336 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 12:05:44,339 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:05:44,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 12:05:44,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 12:05:44,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 12:05:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-12-07 12:05:44,363 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2019-12-07 12:05:44,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:05:44,363 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-12-07 12:05:44,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:05:44,364 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-12-07 12:05:44,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:05:44,364 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:05:44,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:05:44,565 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:05:44,565 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:05:44,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:05:44,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2019-12-07 12:05:44,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:05:44,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306219963] [2019-12-07 12:05:44,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 12:05:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:05:45,407 INFO L264 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 12:05:45,408 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:05:45,465 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 12:05:45,465 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:05:45,763 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 12:05:45,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306219963] [2019-12-07 12:05:45,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:05:45,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 12:05:45,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548190671] [2019-12-07 12:05:45,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 12:05:45,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:05:45,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 12:05:45,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 12:05:45,765 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2019-12-07 12:06:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:00,931 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2019-12-07 12:06:00,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:06:00,987 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 12:06:00,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:00,988 INFO L225 Difference]: With dead ends: 44 [2019-12-07 12:06:00,988 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 12:06:00,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 12:06:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 12:06:00,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-12-07 12:06:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 12:06:00,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2019-12-07 12:06:00,993 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2019-12-07 12:06:00,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:00,994 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2019-12-07 12:06:00,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 12:06:00,994 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2019-12-07 12:06:00,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 12:06:00,994 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:06:00,995 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:06:01,195 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:06:01,196 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:06:01,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:06:01,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2019-12-07 12:06:01,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:06:01,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830648852] [2019-12-07 12:06:01,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 12:06:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:06:02,028 INFO L264 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjunts are in the unsatisfiable core [2019-12-07 12:06:02,031 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:06:02,133 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 12:06:02,133 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:06:02,225 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 12:06:02,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830648852] [2019-12-07 12:06:02,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:06:02,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-12-07 12:06:02,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021709851] [2019-12-07 12:06:02,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 12:06:02,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:06:02,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 12:06:02,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-12-07 12:06:02,227 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 9 states. [2019-12-07 12:06:02,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:06:02,345 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-12-07 12:06:02,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:06:02,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-12-07 12:06:02,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:06:02,346 INFO L225 Difference]: With dead ends: 30 [2019-12-07 12:06:02,346 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:06:02,346 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2019-12-07 12:06:02,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:06:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:06:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:06:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:06:02,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-12-07 12:06:02,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:06:02,347 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:06:02,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 12:06:02,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:06:02,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:06:02,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 12:06:02,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:06:02,657 INFO L246 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2019-12-07 12:06:02,658 INFO L242 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 12:06:02,658 INFO L246 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2019-12-07 12:06:02,658 INFO L246 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-12-07 12:06:02,658 INFO L242 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-12-07 12:06:02,658 INFO L246 CegarLoopResult]: For program point L69(lines 69 72) no Hoare annotation was computed. [2019-12-07 12:06:02,658 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:06:02,658 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:06:02,659 INFO L249 CegarLoopResult]: At program point L136(lines 120 137) the Hoare annotation is: true [2019-12-07 12:06:02,659 INFO L242 CegarLoopResult]: At program point L29(lines 17 30) the Hoare annotation is: false [2019-12-07 12:06:02,659 INFO L246 CegarLoopResult]: For program point L112(lines 112 117) no Hoare annotation was computed. [2019-12-07 12:06:02,659 INFO L242 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_atan_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 12:06:02,659 INFO L246 CegarLoopResult]: For program point L131(lines 131 134) no Hoare annotation was computed. [2019-12-07 12:06:02,659 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:06:02,660 INFO L246 CegarLoopResult]: For program point L24(lines 24 28) no Hoare annotation was computed. [2019-12-07 12:06:02,660 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2019-12-07 12:06:02,660 INFO L246 CegarLoopResult]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2019-12-07 12:06:02,660 INFO L246 CegarLoopResult]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2019-12-07 12:06:02,660 INFO L246 CegarLoopResult]: For program point L82(lines 82 98) no Hoare annotation was computed. [2019-12-07 12:06:02,660 INFO L246 CegarLoopResult]: For program point L74(lines 74 99) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L66(lines 66 73) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L91(lines 91 97) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2019-12-07 12:06:02,661 INFO L246 CegarLoopResult]: For program point L116-2(line 116) no Hoare annotation was computed. [2019-12-07 12:06:02,662 INFO L242 CegarLoopResult]: At program point L116-3(lines 56 118) the Hoare annotation is: (and (= |ULTIMATE.start_atan_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 12:06:02,662 INFO L246 CegarLoopResult]: For program point L75(lines 75 78) no Hoare annotation was computed. [2019-12-07 12:06:02,662 INFO L246 CegarLoopResult]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2019-12-07 12:06:02,662 INFO L246 CegarLoopResult]: For program point L67(lines 67 68) no Hoare annotation was computed. [2019-12-07 12:06:02,662 INFO L246 CegarLoopResult]: For program point L76(lines 76 77) no Hoare annotation was computed. [2019-12-07 12:06:02,670 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,673 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,674 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,676 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:06:02,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,677 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:06:02,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,677 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,679 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:06:02 BoogieIcfgContainer [2019-12-07 12:06:02,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:06:02,681 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:06:02,682 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:06:02,682 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:06:02,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:05:43" (3/4) ... [2019-12-07 12:06:02,684 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:06:02,693 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 12:06:02,694 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 12:06:02,694 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:06:02,712 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 12:06:02,712 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 12:06:02,713 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 12:06:02,738 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6947c912-c2b9-44bd-86b7-9a11f8030ebd/bin/uautomizer/witness.graphml [2019-12-07 12:06:02,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:06:02,740 INFO L168 Benchmark]: Toolchain (without parser) took 27378.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.7 MB in the beginning and 951.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 145.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:02,740 INFO L168 Benchmark]: CDTParser took 0.20 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 12:06:02,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:02,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:06:02,741 INFO L168 Benchmark]: Boogie Preprocessor took 29.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:02,741 INFO L168 Benchmark]: RCFGBuilder took 7740.74 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:02,741 INFO L168 Benchmark]: TraceAbstraction took 19277.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.6 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:02,742 INFO L168 Benchmark]: Witness Printer took 57.23 ms. Allocated memory is still 1.2 GB. Free memory was 958.6 MB in the beginning and 951.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:06:02,743 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.22 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7740.74 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: 39.6 MB). Peak memory consumption was 39.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19277.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 958.6 MB in the end (delta: 128.3 MB). Peak memory consumption was 128.3 MB. Max. memory is 11.5 GB. * Witness Printer took 57.23 ms. Allocated memory is still 1.2 GB. Free memory was 958.6 MB in the beginning and 951.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - 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 - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 132]: 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: 15]: Loop Invariant [2019-12-07 12:06:02,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 60]: Loop Invariant [2019-12-07 12:06:02,749 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:06:02,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,749 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:06:02,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 56]: Loop Invariant [2019-12-07 12:06:02,749 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 12:06:02,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 12:06:02,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 19.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 71 SDtfs, 94 SDslu, 120 SDs, 0 SdLazy, 82 SolverSat, 3 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 14.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 6 QuantifiedInterpolants, 3403 SizeOfPredicates, 17 NumberOfNonLiveVariables, 258 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...