./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 ............................................................................................................................................................................................................................................................................ 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_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c -s /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:50:49,580 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:49,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:49,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:49,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:49,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:49,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:49,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:49,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:49,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:49,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:49,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:49,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:49,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:49,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:49,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:49,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:49,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:49,629 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:49,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:49,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:49,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:49,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:49,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:49,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:49,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:49,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:49,645 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:49,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:49,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:49,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:49,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:49,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:49,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:49,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:49,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:49,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:49,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:49,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:49,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:49,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:49,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:50:49,678 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:49,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:49,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:49,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:49,690 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:49,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:49,691 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:49,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:49,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:49,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:49,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:49,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:49,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:49,692 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:49,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:49,693 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:49,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:49,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:49,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:49,695 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:49,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:49,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:49,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:49,696 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:49,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:49,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:49,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:50:49,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:49,697 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_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2019-11-25 08:50:49,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:49,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:49,885 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:49,886 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:49,887 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:49,888 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-25 08:50:49,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/39a8bb0ab/4a124629bf054290b30fe1a6c2022344/FLAG661fc009c [2019-11-25 08:50:50,365 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:50,366 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-25 08:50:50,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/39a8bb0ab/4a124629bf054290b30fe1a6c2022344/FLAG661fc009c [2019-11-25 08:50:50,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/39a8bb0ab/4a124629bf054290b30fe1a6c2022344 [2019-11-25 08:50:50,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:50,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:50,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:50,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:50,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:50,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faf36ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50, skipping insertion in model container [2019-11-25 08:50:50,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:50,755 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:50,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:50,949 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:51,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:51,083 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:51,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51 WrapperNode [2019-11-25 08:50:51,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:51,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:51,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:51,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:51,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:51,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:51,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:51,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:51,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... [2019-11-25 08:50:51,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:51,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:51,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:51,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:51,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 [2019-11-25 08:50:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:50:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:50:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:50:51,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:51,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:50:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:50:51,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:50:51,625 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:51,626 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:50:51,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:51 BoogieIcfgContainer [2019-11-25 08:50:51,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:51,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:50:51,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:50:51,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:50:51,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:50" (1/3) ... [2019-11-25 08:50:51,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cefe3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:51, skipping insertion in model container [2019-11-25 08:50:51,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:51" (2/3) ... [2019-11-25 08:50:51,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cefe3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:51, skipping insertion in model container [2019-11-25 08:50:51,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:51" (3/3) ... [2019-11-25 08:50:51,636 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2019-11-25 08:50:51,645 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:50:51,651 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:50:51,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:50:51,685 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:50:51,686 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:50:51,686 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:50:51,686 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:51,686 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:51,686 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:50:51,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:51,687 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:50:51,701 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-25 08:50:51,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:50:51,708 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:51,708 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:51,709 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:51,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2019-11-25 08:50:51,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:51,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183514742] [2019-11-25 08:50:51,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:51,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:51,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183514742] [2019-11-25 08:50:51,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:51,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:50:51,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335206796] [2019-11-25 08:50:51,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:50:51,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:51,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:50:51,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:50:51,841 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-25 08:50:51,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:51,856 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-11-25 08:50:51,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:50:51,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:50:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:51,866 INFO L225 Difference]: With dead ends: 40 [2019-11-25 08:50:51,866 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:50:51,869 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 [2019-11-25 08:50:51,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:50:51,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-25 08:50:51,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:50:51,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-25 08:50:51,900 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-25 08:50:51,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:51,900 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-25 08:50:51,900 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:50:51,900 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-25 08:50:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:50:51,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:51,901 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:51,901 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:51,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:51,902 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2019-11-25 08:50:51,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:51,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938180972] [2019-11-25 08:50:51,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:51,994 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:51,994 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:50:52,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:50:52 BoogieIcfgContainer [2019-11-25 08:50:52,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:50:52,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:52,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:52,018 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:52,018 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:51" (3/4) ... [2019-11-25 08:50:52,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:50:52,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:52,023 INFO L168 Benchmark]: Toolchain (without parser) took 1302.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:52,024 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:52,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:52,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:52,025 INFO L168 Benchmark]: Boogie Preprocessor took 47.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:52,026 INFO L168 Benchmark]: RCFGBuilder took 453.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:52,027 INFO L168 Benchmark]: TraceAbstraction took 389.30 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:52,027 INFO L168 Benchmark]: Witness Printer took 3.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:52,030 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 359.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -182.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 453.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 389.30 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L12] __uint32_t w; [L14] int exponent_less_127; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L24] COND FALSE !(exponent_less_127 < 23) [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; [L66] float res = round_float(x); [L55] return x != x; [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 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=21occurred 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 0.1.24-6b5699a [2019-11-25 08:50:53,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:53,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:53,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:53,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:53,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:53,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:53,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:53,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:53,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:53,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:53,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:53,819 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:53,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:53,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:53,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:53,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:53,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:53,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:53,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:53,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:53,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:53,840 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:53,841 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:53,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:53,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:53,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:53,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:53,847 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:53,849 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:53,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:53,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:53,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:53,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:53,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:53,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:53,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:53,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:53,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:53,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:53,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:53,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:50:53,883 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:53,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:53,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:53,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:53,894 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:53,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:53,895 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:53,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:53,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:53,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:53,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:53,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:53,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:50:53,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:50:53,897 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:50:53,897 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:53,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:53,898 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:53,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:53,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:53,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:53,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:53,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:53,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:53,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:53,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:53,900 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:53,900 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:50:53,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:50:53,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:53,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:50:53,902 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_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2019-11-25 08:50:54,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:54,194 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:54,197 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:54,199 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:54,200 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:54,201 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-25 08:50:54,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/464a4c0d4/2426958e9d484fd4a2ab7ee36747668f/FLAG26dd8bf9e [2019-11-25 08:50:54,598 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:54,598 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2019-11-25 08:50:54,604 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/464a4c0d4/2426958e9d484fd4a2ab7ee36747668f/FLAG26dd8bf9e [2019-11-25 08:50:54,977 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/data/464a4c0d4/2426958e9d484fd4a2ab7ee36747668f [2019-11-25 08:50:54,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:54,981 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:54,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:54,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:54,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:54,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:54" (1/1) ... [2019-11-25 08:50:54,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48468728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:54, skipping insertion in model container [2019-11-25 08:50:54,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:54" (1/1) ... [2019-11-25 08:50:55,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:55,023 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:55,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:55,225 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:55,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:55,294 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:55,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55 WrapperNode [2019-11-25 08:50:55,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:55,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:55,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:55,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:55,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:55,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:55,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:55,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:55,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... [2019-11-25 08:50:55,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:55,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:55,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:55,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:55,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 [2019-11-25 08:50:55,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:50:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-25 08:50:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:50:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:50:55,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:50:55,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:50:55,828 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:55,828 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:50:55,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:55 BoogieIcfgContainer [2019-11-25 08:50:55,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:55,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:50:55,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:50:55,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:50:55,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:54" (1/3) ... [2019-11-25 08:50:55,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebcbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:55, skipping insertion in model container [2019-11-25 08:50:55,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:55" (2/3) ... [2019-11-25 08:50:55,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebcbfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:50:55, skipping insertion in model container [2019-11-25 08:50:55,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:55" (3/3) ... [2019-11-25 08:50:55,843 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2019-11-25 08:50:55,854 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:50:55,860 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:50:55,870 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:50:55,891 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:50:55,891 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:50:55,891 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:50:55,891 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:55,891 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:55,892 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:50:55,892 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:55,892 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:50:55,904 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-11-25 08:50:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:50:55,910 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:55,911 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:55,911 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:55,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:55,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2019-11-25 08:50:55,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:50:55,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600219269] [2019-11-25 08:50:55,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 [2019-11-25 08:50:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:56,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:50:56,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:50:56,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,028 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:50:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,032 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600219269] [2019-11-25 08:50:56,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:56,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:50:56,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654247163] [2019-11-25 08:50:56,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:50:56,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:50:56,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:50:56,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:50:56,047 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-11-25 08:50:56,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:56,061 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2019-11-25 08:50:56,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:50:56,062 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:50:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:56,070 INFO L225 Difference]: With dead ends: 40 [2019-11-25 08:50:56,070 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:50:56,073 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 [2019-11-25 08:50:56,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:50:56,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-25 08:50:56,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:50:56,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-25 08:50:56,097 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2019-11-25 08:50:56,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:56,098 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-25 08:50:56,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:50:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-25 08:50:56,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:50:56,098 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:56,098 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:56,299 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:50:56,299 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:56,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:56,300 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2019-11-25 08:50:56,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:50:56,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1890972765] [2019-11-25 08:50:56,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 [2019-11-25 08:50:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:56,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:50:56,378 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:50:56,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,490 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:50:56,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:56,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1890972765] [2019-11-25 08:50:56,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:56,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-25 08:50:56,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214421044] [2019-11-25 08:50:56,874 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:50:56,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:50:56,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:50:56,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:50:56,876 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 10 states. [2019-11-25 08:50:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:57,157 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-25 08:50:57,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:50:57,158 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-11-25 08:50:57,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:57,159 INFO L225 Difference]: With dead ends: 23 [2019-11-25 08:50:57,159 INFO L226 Difference]: Without dead ends: 17 [2019-11-25 08:50:57,160 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:50:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-25 08:50:57,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-25 08:50:57,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-25 08:50:57,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-25 08:50:57,164 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2019-11-25 08:50:57,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:57,165 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-25 08:50:57,165 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:50:57,165 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-25 08:50:57,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:50:57,166 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:50:57,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:50:57,379 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:50:57,380 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:50:57,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:57,380 INFO L82 PathProgramCache]: Analyzing trace with hash 812423977, now seen corresponding path program 1 times [2019-11-25 08:50:57,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:50:57,381 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257550599] [2019-11-25 08:50:57,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/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 [2019-11-25 08:50:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:57,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:50:57,453 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:50:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:57,540 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:50:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:50:57,644 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257550599] [2019-11-25 08:50:57,644 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:57,644 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:50:57,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760179994] [2019-11-25 08:50:57,645 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:50:57,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:50:57,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:50:57,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:50:57,646 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 8 states. [2019-11-25 08:50:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:57,807 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-11-25 08:50:57,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:50:57,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-25 08:50:57,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:50:57,808 INFO L225 Difference]: With dead ends: 17 [2019-11-25 08:50:57,808 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:50:57,808 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:50:57,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:50:57,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:50:57,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:50:57,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:50:57,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-25 08:50:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:50:57,810 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:57,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:50:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:50:57,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:50:58,010 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:50:58,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:50:58,116 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:50:58,117 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2019-11-25 08:50:58,117 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2019-11-25 08:50:58,117 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-25 08:50:58,117 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2019-11-25 08:50:58,117 INFO L444 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2019-11-25 08:50:58,118 INFO L447 ceAbstractionStarter]: At program point L74(lines 57 75) the Hoare annotation is: true [2019-11-25 08:50:58,118 INFO L444 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2019-11-25 08:50:58,118 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:50:58,118 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2019-11-25 08:50:58,118 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2019-11-25 08:50:58,118 INFO L444 ceAbstractionStarter]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2019-11-25 08:50:58,118 INFO L444 ceAbstractionStarter]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2019-11-25 08:50:58,119 INFO L440 ceAbstractionStarter]: At program point L55(line 55) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_round_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:50:58,119 INFO L440 ceAbstractionStarter]: At program point L51(lines 11 52) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:50:58,127 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,128 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,128 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,132 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,133 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,133 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,136 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,139 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,139 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,139 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,140 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,140 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,142 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:50:58,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,143 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:50:58,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:50:58 BoogieIcfgContainer [2019-11-25 08:50:58,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:50:58,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:58,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:58,148 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:58,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:55" (3/4) ... [2019-11-25 08:50:58,160 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:50:58,169 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:50:58,170 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 08:50:58,170 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:50:58,193 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2019-11-25 08:50:58,193 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 [2019-11-25 08:50:58,194 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 [2019-11-25 08:50:58,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_78f64bb6-2bbf-41de-9178-2dd5b64a48d7/bin/uautomizer/witness.graphml [2019-11-25 08:50:58,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:58,237 INFO L168 Benchmark]: Toolchain (without parser) took 3255.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 956.4 MB in the beginning and 1.0 GB in the end (delta: -64.6 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,237 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:58,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.61 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 940.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -214.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,239 INFO L168 Benchmark]: Boogie Preprocessor took 67.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,240 INFO L168 Benchmark]: RCFGBuilder took 346.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,240 INFO L168 Benchmark]: TraceAbstraction took 2316.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,241 INFO L168 Benchmark]: Witness Printer took 87.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:58,244 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 312.61 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 940.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -214.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 67.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 346.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2316.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 97.6 MB). Peak memory consumption was 97.6 MB. Max. memory is 11.5 GB. * Witness Printer took 87.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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] * 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: 70]: 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: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant [2019-11-25 08:50:58,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,255 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,255 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,256 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,256 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,257 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: 11]: Loop Invariant [2019-11-25 08:50:58,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,257 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,258 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,260 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,260 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: 16]: Loop Invariant [2019-11-25 08:50:58,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,260 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:50:58,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:50:58,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:50:58,261 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-25 08:50:58,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 43 SDtfs, 53 SDslu, 71 SDs, 0 SdLazy, 43 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 59 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 5 QuantifiedInterpolants, 3580 SizeOfPredicates, 17 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 20 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...