./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/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 86466cf5e99320b887fae6f726f2af775c2eaef8 ........................................................................................................................................................................................................................................................................................ 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_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/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 86466cf5e99320b887fae6f726f2af775c2eaef8 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:43:07,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:43:07,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:43:07,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:43:07,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:43:07,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:43:07,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:43:07,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:43:07,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:43:07,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:43:07,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:43:07,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:43:07,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:43:07,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:43:07,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:43:07,789 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:43:07,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:43:07,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:43:07,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:43:07,793 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:43:07,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:43:07,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:43:07,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:43:07,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:43:07,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:43:07,797 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:43:07,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:43:07,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:43:07,798 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:43:07,799 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:43:07,799 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:43:07,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:43:07,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:43:07,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:43:07,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:43:07,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:43:07,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:43:07,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:43:07,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:43:07,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:43:07,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:43:07,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:43:07,812 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:43:07,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:43:07,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:43:07,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:43:07,813 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:43:07,814 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:43:07,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:43:07,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:43:07,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:43:07,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:43:07,816 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:43:07,817 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_685a6e73-ca3e-4baf-9d22-9d2a36250acc/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2019-12-07 18:43:07,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:43:07,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:43:07,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:43:07,931 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:43:07,931 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:43:07,932 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-12-07 18:43:07,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/e2fcc18b8/bee5e5187eda453cb8ca5049e1e10103/FLAGcce154023 [2019-12-07 18:43:08,296 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:43:08,297 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-12-07 18:43:08,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/e2fcc18b8/bee5e5187eda453cb8ca5049e1e10103/FLAGcce154023 [2019-12-07 18:43:08,312 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/e2fcc18b8/bee5e5187eda453cb8ca5049e1e10103 [2019-12-07 18:43:08,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:43:08,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:43:08,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:43:08,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:43:08,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:43:08,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6342ce07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08, skipping insertion in model container [2019-12-07 18:43:08,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,326 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:43:08,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:43:08,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:43:08,510 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:43:08,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:43:08,549 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:43:08,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08 WrapperNode [2019-12-07 18:43:08,550 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:43:08,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:43:08,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:43:08,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:43:08,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:43:08,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:43:08,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:43:08,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:43:08,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... [2019-12-07 18:43:08,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:43:08,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:43:08,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:43:08,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:43:08,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:43:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:43:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:43:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:43:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:43:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:43:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:43:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:43:08,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:43:08,824 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:43:08,824 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 18:43:08,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:08 BoogieIcfgContainer [2019-12-07 18:43:08,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:43:08,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:43:08,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:43:08,828 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:43:08,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:43:08" (1/3) ... [2019-12-07 18:43:08,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17985d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:43:08, skipping insertion in model container [2019-12-07 18:43:08,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:08" (2/3) ... [2019-12-07 18:43:08,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17985d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:43:08, skipping insertion in model container [2019-12-07 18:43:08,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:08" (3/3) ... [2019-12-07 18:43:08,830 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2019-12-07 18:43:08,836 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:43:08,840 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:43:08,847 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:43:08,864 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:43:08,865 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:43:08,865 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:43:08,865 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:43:08,865 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:43:08,865 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:43:08,865 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:43:08,865 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:43:08,874 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 18:43:08,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 18:43:08,878 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:43:08,879 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:43:08,879 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:43:08,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:08,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-12-07 18:43:08,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:08,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335565345] [2019-12-07 18:43:08,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:08,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335565345] [2019-12-07 18:43:08,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:43:08,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:43:08,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078335550] [2019-12-07 18:43:08,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:43:08,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:43:08,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:43:08,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:43:08,983 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-12-07 18:43:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:43:08,995 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-12-07 18:43:08,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:43:08,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 18:43:08,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:43:09,002 INFO L225 Difference]: With dead ends: 58 [2019-12-07 18:43:09,002 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 18:43:09,004 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:43:09,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 18:43:09,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 18:43:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:43:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 18:43:09,028 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-12-07 18:43:09,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:43:09,028 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 18:43:09,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:43:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-12-07 18:43:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:43:09,029 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:43:09,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:43:09,029 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:43:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:09,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-12-07 18:43:09,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:43:09,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030505935] [2019-12-07 18:43:09,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:43:09,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:43:09,100 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:43:09,101 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:43:09,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:43:09 BoogieIcfgContainer [2019-12-07 18:43:09,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:43:09,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:43:09,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:43:09,123 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:43:09,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:08" (3/4) ... [2019-12-07 18:43:09,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:43:09,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:43:09,127 INFO L168 Benchmark]: Toolchain (without parser) took 811.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 942.4 MB in the beginning and 1.0 GB in the end (delta: -100.1 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:09,127 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:09,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:09,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:09,128 INFO L168 Benchmark]: Boogie Preprocessor took 20.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:09,129 INFO L168 Benchmark]: RCFGBuilder took 223.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:09,129 INFO L168 Benchmark]: TraceAbstraction took 296.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:09,130 INFO L168 Benchmark]: Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:09,132 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 234.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -155.2 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 223.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 296.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float res = __ieee754_logf(x); [L111] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 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=30occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 18:43:10,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:43:10,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:43:10,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:43:10,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:43:10,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:43:10,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:43:10,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:43:10,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:43:10,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:43:10,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:43:10,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:43:10,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:43:10,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:43:10,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:43:10,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:43:10,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:43:10,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:43:10,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:43:10,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:43:10,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:43:10,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:43:10,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:43:10,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:43:10,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:43:10,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:43:10,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:43:10,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:43:10,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:43:10,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:43:10,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:43:10,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:43:10,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:43:10,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:43:10,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:43:10,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:43:10,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:43:10,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:43:10,583 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:43:10,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:43:10,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:43:10,585 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:43:10,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:43:10,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:43:10,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:43:10,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:43:10,599 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:43:10,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:43:10,599 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:43:10,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:43:10,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:43:10,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:43:10,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:43:10,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:43:10,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:43:10,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:43:10,600 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:43:10,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:43:10,601 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:43:10,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:43:10,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:43:10,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:43:10,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:43:10,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:43:10,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:43:10,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:43:10,603 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:43:10,603 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_685a6e73-ca3e-4baf-9d22-9d2a36250acc/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2019-12-07 18:43:10,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:43:10,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:43:10,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:43:10,780 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:43:10,780 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:43:10,781 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-12-07 18:43:10,819 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/0c7507367/911126e8fa7940b58c683bf1aa348995/FLAG7c4b5be5a [2019-12-07 18:43:11,161 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:43:11,162 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-12-07 18:43:11,167 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/0c7507367/911126e8fa7940b58c683bf1aa348995/FLAG7c4b5be5a [2019-12-07 18:43:11,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/data/0c7507367/911126e8fa7940b58c683bf1aa348995 [2019-12-07 18:43:11,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:43:11,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:43:11,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:43:11,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:43:11,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:43:11,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41944eff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11, skipping insertion in model container [2019-12-07 18:43:11,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:43:11,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:43:11,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:43:11,365 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:43:11,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:43:11,441 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:43:11,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11 WrapperNode [2019-12-07 18:43:11,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:43:11,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:43:11,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:43:11,442 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:43:11,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:43:11,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:43:11,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:43:11,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:43:11,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... [2019-12-07 18:43:11,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:43:11,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:43:11,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:43:11,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:43:11,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:43:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:43:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 18:43:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:43:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:43:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:43:11,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 18:43:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:43:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:43:22,903 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:43:22,903 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 18:43:22,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:22 BoogieIcfgContainer [2019-12-07 18:43:22,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:43:22,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:43:22,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:43:22,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:43:22,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:43:11" (1/3) ... [2019-12-07 18:43:22,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c0174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:43:22, skipping insertion in model container [2019-12-07 18:43:22,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:43:11" (2/3) ... [2019-12-07 18:43:22,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c3c0174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:43:22, skipping insertion in model container [2019-12-07 18:43:22,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:22" (3/3) ... [2019-12-07 18:43:22,909 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2019-12-07 18:43:22,915 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:43:22,919 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:43:22,926 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:43:22,940 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:43:22,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:43:22,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:43:22,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:43:22,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:43:22,941 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:43:22,941 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:43:22,941 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:43:22,950 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-07 18:43:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 18:43:22,953 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:43:22,954 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:43:22,954 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:43:22,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:22,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-12-07 18:43:22,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:43:22,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [619397144] [2019-12-07 18:43:22,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 18:43:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:23,427 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:43:23,431 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:23,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:23,441 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:43:23,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:23,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [619397144] [2019-12-07 18:43:23,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:43:23,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:43:23,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399183616] [2019-12-07 18:43:23,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:43:23,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:43:23,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:43:23,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:43:23,460 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-12-07 18:43:23,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:43:23,473 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-12-07 18:43:23,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:43:23,473 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 18:43:23,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:43:23,480 INFO L225 Difference]: With dead ends: 58 [2019-12-07 18:43:23,480 INFO L226 Difference]: Without dead ends: 27 [2019-12-07 18:43:23,482 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:43:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-07 18:43:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-07 18:43:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:43:23,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-12-07 18:43:23,505 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-12-07 18:43:23,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:43:23,506 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-12-07 18:43:23,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:43:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-12-07 18:43:23,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:43:23,506 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:43:23,506 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:43:23,707 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:43:23,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:43:23,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:23,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-12-07 18:43:23,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:43:23,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [600345975] [2019-12-07 18:43:23,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 18:43:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:24,215 INFO L264 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 18:43:24,217 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:24,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:24,271 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:43:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:24,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [600345975] [2019-12-07 18:43:24,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:43:24,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 18:43:24,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479106723] [2019-12-07 18:43:24,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 18:43:24,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:43:24,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 18:43:24,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 18:43:24,329 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2019-12-07 18:43:27,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:43:27,312 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-12-07 18:43:27,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 18:43:27,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 18:43:27,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:43:27,453 INFO L225 Difference]: With dead ends: 42 [2019-12-07 18:43:27,453 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 18:43:27,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-12-07 18:43:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 18:43:27,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2019-12-07 18:43:27,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:43:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-12-07 18:43:27,459 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-12-07 18:43:27,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:43:27,459 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-12-07 18:43:27,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 18:43:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-12-07 18:43:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 18:43:27,460 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:43:27,460 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:43:27,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:43:27,661 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:43:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2019-12-07 18:43:27,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:43:27,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080936732] [2019-12-07 18:43:27,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 18:43:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:28,157 INFO L264 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 18:43:28,159 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:28,240 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:43:32,530 WARN L192 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-12-07 18:43:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:32,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080936732] [2019-12-07 18:43:32,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:43:32,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 18:43:32,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117126340] [2019-12-07 18:43:32,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 18:43:32,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:43:32,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 18:43:32,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:43:32,544 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 10 states. [2019-12-07 18:43:55,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:43:55,547 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2019-12-07 18:43:55,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 18:43:55,548 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 18:43:55,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:43:55,549 INFO L225 Difference]: With dead ends: 37 [2019-12-07 18:43:55,549 INFO L226 Difference]: Without dead ends: 32 [2019-12-07 18:43:55,550 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-12-07 18:43:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-07 18:43:55,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2019-12-07 18:43:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-07 18:43:55,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2019-12-07 18:43:55,555 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2019-12-07 18:43:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:43:55,555 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-12-07 18:43:55,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 18:43:55,555 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2019-12-07 18:43:55,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 18:43:55,556 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:43:55,556 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:43:55,756 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 18:43:55,757 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:43:55,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:43:55,757 INFO L82 PathProgramCache]: Analyzing trace with hash 933407232, now seen corresponding path program 1 times [2019-12-07 18:43:55,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:43:55,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105513132] [2019-12-07 18:43:55,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 18:43:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:43:56,110 INFO L264 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 18:43:56,112 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:43:56,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:56,181 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:43:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:43:56,242 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105513132] [2019-12-07 18:43:56,243 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:43:56,243 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 18:43:56,243 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594590394] [2019-12-07 18:43:56,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 18:43:56,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:43:56,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 18:43:56,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 18:43:56,244 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 8 states. [2019-12-07 18:43:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:43:56,342 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-12-07 18:43:56,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 18:43:56,342 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-12-07 18:43:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:43:56,342 INFO L225 Difference]: With dead ends: 27 [2019-12-07 18:43:56,342 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 18:43:56,343 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 18:43:56,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 18:43:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 18:43:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 18:43:56,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 18:43:56,343 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-12-07 18:43:56,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:43:56,343 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 18:43:56,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 18:43:56,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 18:43:56,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 18:43:56,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 18:43:56,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 18:43:56,677 INFO L246 CegarLoopResult]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-12-07 18:43:56,677 INFO L246 CegarLoopResult]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-12-07 18:43:56,677 INFO L242 CegarLoopResult]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-12-07 18:43:56,678 INFO L242 CegarLoopResult]: At program point L106(lines 32 108) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L242 CegarLoopResult]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L246 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-12-07 18:43:56,678 INFO L242 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-12-07 18:43:56,679 INFO L246 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2019-12-07 18:43:56,679 INFO L246 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-12-07 18:43:56,679 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2019-12-07 18:43:56,679 INFO L246 CegarLoopResult]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-12-07 18:43:56,679 INFO L246 CegarLoopResult]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-12-07 18:43:56,679 INFO L242 CegarLoopResult]: At program point L111(line 111) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_logf_~x) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res|) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 18:43:56,679 INFO L246 CegarLoopResult]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L249 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-12-07 18:43:56,680 INFO L246 CegarLoopResult]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-12-07 18:43:56,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,690 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,691 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,694 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,696 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,697 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:43:56,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,701 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:43:56,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:43:56 BoogieIcfgContainer [2019-12-07 18:43:56,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:43:56,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:43:56,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:43:56,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:43:56,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:43:22" (3/4) ... [2019-12-07 18:43:56,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 18:43:56,716 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 18:43:56,716 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 18:43:56,717 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 18:43:56,735 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:43:56,736 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:43:56,736 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 18:43:56,767 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_685a6e73-ca3e-4baf-9d22-9d2a36250acc/bin/uautomizer/witness.graphml [2019-12-07 18:43:56,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:43:56,769 INFO L168 Benchmark]: Toolchain (without parser) took 45587.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.4 MB in the beginning and 922.1 MB in the end (delta: 30.3 MB). Peak memory consumption was 164.5 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:56,769 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:56,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:56,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:56,770 INFO L168 Benchmark]: Boogie Preprocessor took 25.48 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:43:56,770 INFO L168 Benchmark]: RCFGBuilder took 11404.90 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:56,771 INFO L168 Benchmark]: TraceAbstraction took 33798.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.0 MB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:56,771 INFO L168 Benchmark]: Witness Printer took 63.66 ms. Allocated memory is still 1.2 GB. Free memory was 929.0 MB in the beginning and 922.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:43:56,772 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.65 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 25.48 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. * RCFGBuilder took 11404.90 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33798.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.0 MB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. * Witness Printer took 63.66 ms. Allocated memory is still 1.2 GB. Free memory was 929.0 MB in the beginning and 922.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - 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: 124]: 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: 111]: Loop Invariant [2019-12-07 18:43:56,777 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,777 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,777 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,777 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,777 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,778 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,778 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,778 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,778 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,779 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,780 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,780 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && 1bv32 == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 32]: Loop Invariant [2019-12-07 18:43:56,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,781 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,782 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,783 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,784 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,784 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-12-07 18:43:56,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:43:56,785 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,785 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,785 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 18:43:56,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 18:43:56,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 18:43:56,786 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 33.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 26.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 86 SDtfs, 104 SDslu, 176 SDs, 0 SdLazy, 130 SolverSat, 12 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 25.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 86 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 12 QuantifiedInterpolants, 6478 SizeOfPredicates, 24 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...