./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.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_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ........................................................................................................................................................................................................................................................................................................ 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_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:35:44,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:35:44,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:35:44,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:35:44,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:35:44,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:35:44,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:35:44,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:35:44,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:35:44,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:35:44,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:35:44,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:35:44,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:35:44,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:35:44,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:35:44,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:35:44,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:35:44,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:35:44,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:35:44,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:35:44,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:35:45,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:35:45,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:35:45,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:35:45,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:35:45,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:35:45,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:35:45,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:35:45,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:35:45,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:35:45,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:35:45,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:35:45,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:35:45,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:35:45,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:35:45,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:35:45,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:35:45,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:35:45,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:35:45,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:35:45,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:35:45,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 16:35:45,018 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:35:45,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:35:45,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:35:45,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:35:45,019 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:35:45,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:35:45,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:35:45,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:35:45,021 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:35:45,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:35:45,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:35:45,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:35:45,021 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:35:45,021 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:35:45,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:35:45,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:35:45,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:35:45,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:35:45,022 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:35:45,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:35:45,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:35:45,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:35:45,022 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_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2019-12-07 16:35:45,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:35:45,129 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:35:45,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:35:45,132 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:35:45,132 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:35:45,133 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-12-07 16:35:45,169 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/ac5f28e7c/f6725750b2fb4960b69c9ae1aa3cb4e9/FLAG71826436a [2019-12-07 16:35:45,572 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:35:45,573 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-12-07 16:35:45,577 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/ac5f28e7c/f6725750b2fb4960b69c9ae1aa3cb4e9/FLAG71826436a [2019-12-07 16:35:45,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/ac5f28e7c/f6725750b2fb4960b69c9ae1aa3cb4e9 [2019-12-07 16:35:45,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:35:45,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:35:45,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:35:45,589 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:35:45,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:35:45,592 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,594 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c3817b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45, skipping insertion in model container [2019-12-07 16:35:45,594 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:35:45,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:35:45,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:35:45,782 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:35:45,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:35:45,828 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:35:45,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45 WrapperNode [2019-12-07 16:35:45,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:35:45,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:35:45,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:35:45,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:35:45,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:35:45,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:35:45,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:35:45,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:35:45,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... [2019-12-07 16:35:45,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:35:45,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:35:45,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:35:45,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:35:45,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 16:35:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:35:45,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:35:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 16:35:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 16:35:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:35:45,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:35:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:35:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 16:35:45,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:35:46,125 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:35:46,125 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 16:35:46,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:46 BoogieIcfgContainer [2019-12-07 16:35:46,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:35:46,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:35:46,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:35:46,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:35:46,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:35:45" (1/3) ... [2019-12-07 16:35:46,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d524d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:35:46, skipping insertion in model container [2019-12-07 16:35:46,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:45" (2/3) ... [2019-12-07 16:35:46,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d524d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:35:46, skipping insertion in model container [2019-12-07 16:35:46,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:46" (3/3) ... [2019-12-07 16:35:46,132 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2019-12-07 16:35:46,138 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:35:46,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:35:46,149 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:35:46,165 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:35:46,165 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:35:46,165 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:35:46,165 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:35:46,165 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:35:46,166 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:35:46,166 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:35:46,166 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:35:46,175 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 16:35:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:35:46,179 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:46,179 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:35:46,179 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:35:46,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:46,183 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-12-07 16:35:46,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:35:46,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995645263] [2019-12-07 16:35:46,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:35:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:46,284 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 16:35:46,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995645263] [2019-12-07 16:35:46,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:35:46,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:35:46,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592067534] [2019-12-07 16:35:46,288 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:35:46,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:35:46,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:35:46,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:35:46,298 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 16:35:46,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:35:46,310 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-12-07 16:35:46,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:35:46,311 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 16:35:46,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:35:46,318 INFO L225 Difference]: With dead ends: 70 [2019-12-07 16:35:46,318 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 16:35:46,320 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 16:35:46,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 16:35:46,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 16:35:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 16:35:46,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-12-07 16:35:46,343 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-12-07 16:35:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:35:46,343 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 16:35:46,343 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:35:46,343 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-12-07 16:35:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:35:46,344 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:46,344 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:35:46,344 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:35:46,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:46,344 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-12-07 16:35:46,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:35:46,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217094590] [2019-12-07 16:35:46,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:35:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:35:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:35:46,406 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:35:46,407 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:35:46,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:35:46 BoogieIcfgContainer [2019-12-07 16:35:46,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:35:46,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:35:46,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:35:46,430 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:35:46,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:46" (3/4) ... [2019-12-07 16:35:46,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:35:46,432 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:35:46,434 INFO L168 Benchmark]: Toolchain (without parser) took 845.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 942.4 MB in the beginning and 1.0 GB in the end (delta: -87.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:46,434 INFO L168 Benchmark]: CDTParser took 0.17 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 16:35:46,434 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:46,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.38 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 16:35:46,435 INFO L168 Benchmark]: Boogie Preprocessor took 21.64 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 16:35:46,436 INFO L168 Benchmark]: RCFGBuilder took 238.74 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:46,436 INFO L168 Benchmark]: TraceAbstraction took 302.82 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:35:46,436 INFO L168 Benchmark]: Witness Printer took 2.76 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 16:35:46,438 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 239.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.38 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 21.64 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 238.74 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 302.82 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.76 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 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=36occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 16:35:47,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:35:47,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:35:47,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:35:47,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:35:47,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:35:47,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:35:47,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:35:47,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:35:47,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:35:47,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:35:47,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:35:47,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:35:47,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:35:47,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:35:47,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:35:47,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:35:47,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:35:47,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:35:47,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:35:47,822 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:35:47,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:35:47,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:35:47,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:35:47,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:35:47,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:35:47,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:35:47,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:35:47,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:35:47,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:35:47,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:35:47,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:35:47,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:35:47,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:35:47,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:35:47,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:35:47,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:35:47,833 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:35:47,833 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:35:47,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:35:47,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:35:47,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 16:35:47,847 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:35:47,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:35:47,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:35:47,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:35:47,848 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:35:47,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:35:47,849 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:35:47,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:35:47,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:35:47,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:35:47,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:35:47,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:35:47,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:35:47,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:35:47,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:35:47,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:35:47,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:35:47,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:35:47,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:35:47,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:35:47,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:35:47,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:35:47,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:35:47,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:35:47,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:35:47,852 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_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2019-12-07 16:35:48,021 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:35:48,029 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:35:48,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:35:48,033 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:35:48,033 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:35:48,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-12-07 16:35:48,071 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/cc36d30d3/0e4450a548ee4782a99cdd67d713a628/FLAG5b88d8fd7 [2019-12-07 16:35:48,459 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:35:48,459 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-12-07 16:35:48,464 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/cc36d30d3/0e4450a548ee4782a99cdd67d713a628/FLAG5b88d8fd7 [2019-12-07 16:35:48,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/data/cc36d30d3/0e4450a548ee4782a99cdd67d713a628 [2019-12-07 16:35:48,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:35:48,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:35:48,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:35:48,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:35:48,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:35:48,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:35:48" (1/1) ... [2019-12-07 16:35:48,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@185e116d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:48, skipping insertion in model container [2019-12-07 16:35:48,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:35:48" (1/1) ... [2019-12-07 16:35:48,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:35:48,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:35:48,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:35:49,001 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:35:49,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:35:49,075 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:35:49,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49 WrapperNode [2019-12-07 16:35:49,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:35:49,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:35:49,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:35:49,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:35:49,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:35:49,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:35:49,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:35:49,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:35:49,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... [2019-12-07 16:35:49,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:35:49,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:35:49,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:35:49,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:35:49,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:35:49,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 16:35:49,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:35:56,984 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:35:56,984 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-07 16:35:56,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:56 BoogieIcfgContainer [2019-12-07 16:35:56,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:35:56,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:35:56,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:35:56,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:35:56,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:35:48" (1/3) ... [2019-12-07 16:35:56,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32abecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:35:56, skipping insertion in model container [2019-12-07 16:35:56,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:35:49" (2/3) ... [2019-12-07 16:35:56,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32abecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:35:56, skipping insertion in model container [2019-12-07 16:35:56,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:56" (3/3) ... [2019-12-07 16:35:56,989 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2019-12-07 16:35:56,996 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:35:57,000 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:35:57,007 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:35:57,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:35:57,021 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:35:57,021 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:35:57,021 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:35:57,022 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:35:57,022 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:35:57,022 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:35:57,022 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:35:57,031 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-12-07 16:35:57,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:35:57,034 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:57,035 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:35:57,035 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:35:57,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:57,039 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-12-07 16:35:57,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:35:57,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268396555] [2019-12-07 16:35:57,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 16:35:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:57,461 INFO L264 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:35:57,465 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:35:57,476 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 16:35:57,476 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:35:57,478 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 16:35:57,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268396555] [2019-12-07 16:35:57,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:35:57,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:35:57,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463781424] [2019-12-07 16:35:57,483 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:35:57,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:35:57,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:35:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:35:57,496 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-12-07 16:35:57,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:35:57,508 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-12-07 16:35:57,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:35:57,509 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 16:35:57,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:35:57,516 INFO L225 Difference]: With dead ends: 70 [2019-12-07 16:35:57,516 INFO L226 Difference]: Without dead ends: 33 [2019-12-07 16:35:57,518 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 16:35:57,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-07 16:35:57,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-07 16:35:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-07 16:35:57,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-12-07 16:35:57,542 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-12-07 16:35:57,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:35:57,542 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-12-07 16:35:57,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:35:57,542 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-12-07 16:35:57,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:35:57,543 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:35:57,543 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:35:57,744 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:35:57,744 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:35:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:35:57,745 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-12-07 16:35:57,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:35:57,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512868161] [2019-12-07 16:35:57,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 16:35:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:35:58,176 INFO L264 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:35:58,178 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:35:58,223 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 16:35:58,223 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:35:58,270 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 16:35:58,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512868161] [2019-12-07 16:35:58,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:35:58,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 16:35:58,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948414726] [2019-12-07 16:35:58,272 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:35:58,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:35:58,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:35:58,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:35:58,272 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-12-07 16:36:03,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:03,762 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-12-07 16:36:03,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:36:03,865 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-12-07 16:36:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:03,865 INFO L225 Difference]: With dead ends: 50 [2019-12-07 16:36:03,866 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 16:36:03,867 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:36:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 16:36:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 16:36:03,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 16:36:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-12-07 16:36:03,871 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-12-07 16:36:03,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:03,871 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-12-07 16:36:03,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:36:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-12-07 16:36:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 16:36:03,872 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:03,872 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:04,073 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:36:04,073 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:36:04,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:04,074 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-12-07 16:36:04,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:36:04,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037095505] [2019-12-07 16:36:04,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 16:36:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:04,642 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 16:36:04,644 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:04,729 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 16:36:04,729 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:05,555 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 16:36:05,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037095505] [2019-12-07 16:36:05,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:05,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-12-07 16:36:05,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322540526] [2019-12-07 16:36:05,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 16:36:05,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:36:05,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 16:36:05,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:36:05,556 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2019-12-07 16:36:17,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:17,908 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-12-07 16:36:17,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 16:36:17,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-12-07 16:36:17,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:17,909 INFO L225 Difference]: With dead ends: 33 [2019-12-07 16:36:17,909 INFO L226 Difference]: Without dead ends: 29 [2019-12-07 16:36:17,910 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:36:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-07 16:36:17,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-07 16:36:17,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-07 16:36:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-12-07 16:36:17,913 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-12-07 16:36:17,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:17,913 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-12-07 16:36:17,914 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 16:36:17,914 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-12-07 16:36:17,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:36:17,914 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:36:17,914 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:36:18,115 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:36:18,116 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:36:18,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:36:18,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-12-07 16:36:18,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 16:36:18,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539069232] [2019-12-07 16:36:18,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/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 16:36:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:36:19,282 INFO L264 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 16:36:19,283 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:36:19,345 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 16:36:19,345 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:36:19,664 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 16:36:19,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [539069232] [2019-12-07 16:36:19,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:36:19,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 16:36:19,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75788604] [2019-12-07 16:36:19,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:36:19,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 16:36:19,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:36:19,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:36:19,666 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-12-07 16:36:19,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:36:19,738 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-12-07 16:36:19,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:36:19,739 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-12-07 16:36:19,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:36:19,739 INFO L225 Difference]: With dead ends: 29 [2019-12-07 16:36:19,739 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 16:36:19,740 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:36:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 16:36:19,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 16:36:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 16:36:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 16:36:19,740 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-12-07 16:36:19,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:36:19,740 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:36:19,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:36:19,741 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:36:19,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 16:36:19,941 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 16:36:19,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 16:36:20,034 INFO L249 CegarLoopResult]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-12-07 16:36:20,034 INFO L246 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-12-07 16:36:20,035 INFO L246 CegarLoopResult]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-12-07 16:36:20,036 INFO L242 CegarLoopResult]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-12-07 16:36:20,036 INFO L246 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-12-07 16:36:20,037 INFO L246 CegarLoopResult]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-12-07 16:36:20,038 INFO L242 CegarLoopResult]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)))) (and (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= ~one_exp~0 .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add currentRoundingMode .cse0 (_ +zero 8 24))) (exists ((ULTIMATE.start___ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (_ +zero 8 24)) (= ULTIMATE.start___ieee754_expf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_expf_~sx~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-12-07 16:36:20,038 INFO L246 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-12-07 16:36:20,038 INFO L242 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_exp~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 16:36:20,038 INFO L246 CegarLoopResult]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-12-07 16:36:20,038 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 16:36:20,039 INFO L246 CegarLoopResult]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-12-07 16:36:20,039 INFO L246 CegarLoopResult]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-12-07 16:36:20,039 INFO L246 CegarLoopResult]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-12-07 16:36:20,039 INFO L246 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-12-07 16:36:20,039 INFO L246 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-12-07 16:36:20,039 INFO L242 CegarLoopResult]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-12-07 16:36:20,048 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,049 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,052 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,054 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,058 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,058 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,059 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,060 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,061 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,062 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,062 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:36:20 BoogieIcfgContainer [2019-12-07 16:36:20,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:36:20,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:36:20,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:36:20,066 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:36:20,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:35:56" (3/4) ... [2019-12-07 16:36:20,069 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 16:36:20,080 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-12-07 16:36:20,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 16:36:20,081 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 16:36:20,101 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == ~Pluszero~LONGDOUBLE() && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~Pluszero~LONGDOUBLE() && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 16:36:20,137 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e0db50f1-d5a5-44a8-88dc-05b75b7c9379/bin/uautomizer/witness.graphml [2019-12-07 16:36:20,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:36:20,139 INFO L168 Benchmark]: Toolchain (without parser) took 31289.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.0 MB in the beginning and 920.6 MB in the end (delta: 30.4 MB). Peak memory consumption was 154.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:20,139 INFO L168 Benchmark]: CDTParser took 0.15 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 16:36:20,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 225.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:20,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.00 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 16:36:20,140 INFO L168 Benchmark]: Boogie Preprocessor took 29.12 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 16:36:20,140 INFO L168 Benchmark]: RCFGBuilder took 7845.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:20,140 INFO L168 Benchmark]: TraceAbstraction took 23079.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.3 MB in the end (delta: 146.2 MB). Peak memory consumption was 146.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:20,140 INFO L168 Benchmark]: Witness Printer took 71.86 ms. Allocated memory is still 1.2 GB. Free memory was 927.3 MB in the beginning and 920.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:36:20,142 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 225.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.12 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 7845.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23079.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 927.3 MB in the end (delta: 146.2 MB). Peak memory consumption was 146.2 MB. Max. memory is 11.5 GB. * Witness Printer took 71.86 ms. Allocated memory is still 1.2 GB. Free memory was 927.3 MB in the beginning and 920.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,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[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - 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: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-12-07 16:36:20,145 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,146 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,146 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,147 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,147 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,148 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,148 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-12-07 16:36:20,148 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~Pluszero~LONGDOUBLE() && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 41]: Loop Invariant [2019-12-07 16:36:20,149 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 16:36:20,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 16:36:20,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 22.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 135 SDslu, 103 SDs, 0 SdLazy, 65 SolverSat, 5 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 17.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 73 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9500 SizeOfPredicates, 19 NumberOfNonLiveVariables, 257 ConjunctsInSsa, 24 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...