./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.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_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/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 70ee165c745ab937eeca69bc762f66bcb3efe6fa ............................................................................................................................................................................................................................................................................. 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_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/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 70ee165c745ab937eeca69bc762f66bcb3efe6fa ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:49:40,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:49:40,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:49:40,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:49:40,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:49:40,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:49:40,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:49:40,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:49:40,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:49:40,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:49:40,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:49:40,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:49:40,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:49:40,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:49:40,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:49:40,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:49:40,809 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:49:40,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:49:40,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:49:40,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:49:40,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:49:40,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:49:40,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:49:40,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:49:40,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:49:40,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:49:40,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:49:40,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:49:40,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:49:40,820 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:49:40,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:49:40,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:49:40,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:49:40,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:49:40,822 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:49:40,822 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:49:40,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:49:40,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:49:40,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:49:40,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:49:40,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:49:40,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 12:49:40,833 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:49:40,833 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:49:40,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:49:40,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:49:40,834 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:49:40,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:49:40,834 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:49:40,834 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:49:40,834 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:49:40,835 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:49:40,836 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:49:40,836 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:49:40,836 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:49:40,836 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:49:40,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:49:40,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:49:40,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:49:40,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:49:40,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 12:49:40,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:49:40,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:49:40,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:49:40,837 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_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/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 -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-12-07 12:49:40,942 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:49:40,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:49:40,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:49:40,956 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:49:40,957 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:49:40,957 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-12-07 12:49:41,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/ef92a1bb1/52dff6c2031640fb94d5e680db44f542/FLAGf53adb474 [2019-12-07 12:49:41,324 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:49:41,324 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-12-07 12:49:41,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/ef92a1bb1/52dff6c2031640fb94d5e680db44f542/FLAGf53adb474 [2019-12-07 12:49:41,765 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/ef92a1bb1/52dff6c2031640fb94d5e680db44f542 [2019-12-07 12:49:41,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:49:41,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:49:41,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:41,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:49:41,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:49:41,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74975751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41, skipping insertion in model container [2019-12-07 12:49:41,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:49:41,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:49:41,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:41,897 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:49:41,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:41,961 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:49:41,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41 WrapperNode [2019-12-07 12:49:41,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:41,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:41,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:49:41,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:49:41,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:41,986 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:49:41,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:49:41,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:49:41,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:41,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:42,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:42,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... [2019-12-07 12:49:42,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:49:42,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:49:42,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:49:42,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:49:42,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:49:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:49:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 12:49:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 12:49:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 12:49:42,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:49:42,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:49:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 12:49:42,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:49:42,181 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:49:42,181 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 12:49:42,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:42 BoogieIcfgContainer [2019-12-07 12:49:42,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:49:42,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:49:42,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:49:42,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:49:42,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:49:41" (1/3) ... [2019-12-07 12:49:42,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ec9662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:42, skipping insertion in model container [2019-12-07 12:49:42,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:41" (2/3) ... [2019-12-07 12:49:42,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ec9662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:42, skipping insertion in model container [2019-12-07 12:49:42,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:42" (3/3) ... [2019-12-07 12:49:42,188 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-12-07 12:49:42,196 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:49:42,201 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:49:42,210 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:49:42,224 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:49:42,224 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:49:42,224 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:49:42,224 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:49:42,224 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:49:42,224 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:49:42,224 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:49:42,224 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:49:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 12:49:42,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:49:42,237 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:42,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:42,238 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:42,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-12-07 12:49:42,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:42,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60554760] [2019-12-07 12:49:42,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:42,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:49:42,321 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60554760] [2019-12-07 12:49:42,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:42,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 12:49:42,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596998474] [2019-12-07 12:49:42,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:49:42,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 12:49:42,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:49:42,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:49:42,335 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-12-07 12:49:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:42,346 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-12-07 12:49:42,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:49:42,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 12:49:42,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:42,352 INFO L225 Difference]: With dead ends: 28 [2019-12-07 12:49:42,352 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 12:49:42,354 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:49:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 12:49:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 12:49:42,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 12:49:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-07 12:49:42,375 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-12-07 12:49:42,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:42,375 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-07 12:49:42,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:49:42,376 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-07 12:49:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:49:42,376 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:42,376 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:42,376 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:42,377 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-12-07 12:49:42,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 12:49:42,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95373307] [2019-12-07 12:49:42,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:49:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:49:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 12:49:42,432 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 12:49:42,432 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 12:49:42,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:49:42 BoogieIcfgContainer [2019-12-07 12:49:42,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:49:42,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:49:42,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:49:42,448 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:49:42,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:42" (3/4) ... [2019-12-07 12:49:42,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 12:49:42,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:49:42,452 INFO L168 Benchmark]: Toolchain (without parser) took 682.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -73.4 MB). Peak memory consumption was 527.6 kB. Max. memory is 11.5 GB. [2019-12-07 12:49:42,453 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:42,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:42,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.69 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:42,454 INFO L168 Benchmark]: Boogie Preprocessor took 16.24 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:42,455 INFO L168 Benchmark]: RCFGBuilder took 179.97 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:42,455 INFO L168 Benchmark]: TraceAbstraction took 264.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:42,455 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:49:42,457 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 966.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.69 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.24 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 179.97 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 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: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L15] __uint32_t ix; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; [L36] float res = fabs_float(x); [L12] return x != x; [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 14 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=15occurred 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, 20 NumberOfCodeBlocks, 20 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 12:49:43,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:49:43,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:49:43,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:49:43,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:49:43,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:49:43,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:49:43,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:49:43,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:49:43,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:49:43,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:49:43,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:49:43,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:49:43,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:49:43,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:49:43,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:49:43,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:49:43,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:49:43,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:49:43,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:49:43,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:49:43,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:49:43,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:49:43,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:49:43,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:49:43,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:49:43,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:49:43,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:49:43,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:49:43,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:49:43,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:49:43,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:49:43,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:49:43,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:49:43,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:49:43,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:49:43,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:49:43,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:49:43,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:49:43,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:49:43,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:49:43,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 12:49:43,892 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:49:43,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:49:43,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 12:49:43,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 12:49:43,893 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 12:49:43,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:49:43,894 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 12:49:43,895 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 12:49:43,895 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:49:43,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:49:43,895 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:49:43,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:49:43,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:49:43,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:49:43,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 12:49:43,896 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 12:49:43,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:49:43,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:49:43,897 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:49:43,897 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_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/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 -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2019-12-07 12:49:44,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:49:44,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:49:44,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:49:44,073 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:49:44,073 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:49:44,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-12-07 12:49:44,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/614ef28f4/21103300174543baa37ae904288aa6ba/FLAGe68e6c7e0 [2019-12-07 12:49:44,453 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:49:44,454 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/sv-benchmarks/c/float-newlib/float_req_bl_1010.c [2019-12-07 12:49:44,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/614ef28f4/21103300174543baa37ae904288aa6ba/FLAGe68e6c7e0 [2019-12-07 12:49:44,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/data/614ef28f4/21103300174543baa37ae904288aa6ba [2019-12-07 12:49:44,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:49:44,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:49:44,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:44,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:49:44,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:49:44,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@692431c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44, skipping insertion in model container [2019-12-07 12:49:44,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:49:44,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:49:44,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:44,615 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:49:44,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:49:44,647 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:49:44,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44 WrapperNode [2019-12-07 12:49:44,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:49:44,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:44,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:49:44,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:49:44,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:49:44,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:49:44,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:49:44,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:49:44,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... [2019-12-07 12:49:44,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:49:44,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:49:44,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:49:44,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:49:44,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:49:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 12:49:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 12:49:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 12:49:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:49:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:49:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 12:49:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 12:49:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 12:49:44,916 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:49:44,917 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 12:49:44,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:44 BoogieIcfgContainer [2019-12-07 12:49:44,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:49:44,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:49:44,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:49:44,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:49:44,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:49:44" (1/3) ... [2019-12-07 12:49:44,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1974b826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:44, skipping insertion in model container [2019-12-07 12:49:44,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:49:44" (2/3) ... [2019-12-07 12:49:44,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1974b826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:49:44, skipping insertion in model container [2019-12-07 12:49:44,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:44" (3/3) ... [2019-12-07 12:49:44,922 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010.c [2019-12-07 12:49:44,929 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:49:44,933 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:49:44,941 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:49:44,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:49:44,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:49:44,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:49:44,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:49:44,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:49:44,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:49:44,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:49:44,955 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:49:44,963 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-12-07 12:49:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 12:49:44,967 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:44,968 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:44,968 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:44,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1641238961, now seen corresponding path program 1 times [2019-12-07 12:49:44,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:44,979 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615641300] [2019-12-07 12:49:44,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:45,032 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 12:49:45,036 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:49:45,046 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:45,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:49:45,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615641300] [2019-12-07 12:49:45,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:45,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 12:49:45,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068365521] [2019-12-07 12:49:45,053 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 12:49:45,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:45,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 12:49:45,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 12:49:45,063 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-12-07 12:49:45,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:45,073 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2019-12-07 12:49:45,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 12:49:45,074 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 12:49:45,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:45,080 INFO L225 Difference]: With dead ends: 28 [2019-12-07 12:49:45,080 INFO L226 Difference]: Without dead ends: 12 [2019-12-07 12:49:45,082 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 12:49:45,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-07 12:49:45,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-07 12:49:45,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-07 12:49:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-07 12:49:45,103 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2019-12-07 12:49:45,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:45,104 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-07 12:49:45,104 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 12:49:45,104 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-07 12:49:45,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 12:49:45,104 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:49:45,104 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 12:49:45,305 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 12:49:45,305 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:49:45,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:49:45,306 INFO L82 PathProgramCache]: Analyzing trace with hash 558246130, now seen corresponding path program 1 times [2019-12-07 12:49:45,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 12:49:45,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115168362] [2019-12-07 12:49:45,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 12:49:45,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:49:45,391 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 12:49:45,393 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:49:45,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:49:45,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:49:45,507 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:49:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:49:45,616 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115168362] [2019-12-07 12:49:45,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:49:45,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-12-07 12:49:45,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266549238] [2019-12-07 12:49:45,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 12:49:45,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 12:49:45,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 12:49:45,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-12-07 12:49:45,619 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 12 states. [2019-12-07 12:49:46,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:49:46,014 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-12-07 12:49:46,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 12:49:46,015 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-12-07 12:49:46,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:49:46,015 INFO L225 Difference]: With dead ends: 12 [2019-12-07 12:49:46,015 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:49:46,016 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2019-12-07 12:49:46,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:49:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:49:46,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:49:46,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:49:46,017 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 12:49:46,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:49:46,017 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:49:46,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 12:49:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:49:46,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:49:46,218 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 12:49:46,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:49:46,332 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:49:46,332 INFO L246 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L246 CegarLoopResult]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L246 CegarLoopResult]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L249 CegarLoopResult]: At program point L44(lines 29 45) the Hoare annotation is: true [2019-12-07 12:49:46,333 INFO L246 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 12:49:46,333 INFO L242 CegarLoopResult]: At program point L26(lines 14 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|))) [2019-12-07 12:49:46,334 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2019-12-07 12:49:46,334 INFO L246 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-12-07 12:49:46,334 INFO L242 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (not (fp.eq ULTIMATE.start_fabs_float_~x ULTIMATE.start_fabs_float_~x)) [2019-12-07 12:49:46,334 INFO L242 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 30 23) ULTIMATE.start_fabs_float_~ix~0) ((_ extract 22 0) ULTIMATE.start_fabs_float_~ix~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start_fabs_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_#res|))) [2019-12-07 12:49:46,334 INFO L246 CegarLoopResult]: For program point L39(lines 39 42) no Hoare annotation was computed. [2019-12-07 12:49:46,339 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,340 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:49:46 BoogieIcfgContainer [2019-12-07 12:49:46,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:49:46,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:49:46,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:49:46,350 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:49:46,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:49:44" (3/4) ... [2019-12-07 12:49:46,353 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:49:46,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 12:49:46,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 12:49:46,360 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 12:49:46,385 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3dfb1328-3f8f-4cd0-9c1b-0f3f81d71f21/bin/uautomizer/witness.graphml [2019-12-07 12:49:46,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:49:46,387 INFO L168 Benchmark]: Toolchain (without parser) took 1916.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -51.4 MB). Peak memory consumption was 81.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,387 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 12:49:46,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.65 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,388 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,388 INFO L168 Benchmark]: Boogie Preprocessor took 23.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,389 INFO L168 Benchmark]: RCFGBuilder took 191.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,389 INFO L168 Benchmark]: TraceAbstraction took 1431.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,389 INFO L168 Benchmark]: Witness Printer took 35.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:49:46,391 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 177.65 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1431.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: 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: 14]: Loop Invariant [2019-12-07 12:49:46,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 12]: Loop Invariant [2019-12-07 12:49:46,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 12:49:46,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 18 SDtfs, 12 SDslu, 16 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 64 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 6 QuantifiedInterpolants, 1588 SizeOfPredicates, 13 NumberOfNonLiveVariables, 57 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...