./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ................................................................................................................................................................................................................................................................................................ 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/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:54,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:54,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:54,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:54,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:54,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:54,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:54,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:54,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:54,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:54,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:54,682 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:54,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:54,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:54,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:54,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:54,686 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:54,687 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:54,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:54,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:54,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:54,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:54,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:54,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:54,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:54,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:54,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:54,698 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:54,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:54,700 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:54,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:54,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:54,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:54,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:54,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:54,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:54,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:54,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:54,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:54,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:54,707 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:54,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:00:54,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:54,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:54,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:54,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:54,721 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:54,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:54,722 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:54,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:00:54,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:54,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:54,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:54,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:54,724 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:54,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:54,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:54,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:54,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:54,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:54,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:54,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:00:54,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:00:54,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:54,725 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/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-10-22 09:00:54,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:54,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:54,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:54,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:54,764 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:54,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-10-22 09:00:54,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/33d0f07ff/6e4f256800e6489487ae377c9ef9bec1/FLAG04bd88ae3 [2019-10-22 09:00:55,206 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:55,206 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-10-22 09:00:55,213 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/33d0f07ff/6e4f256800e6489487ae377c9ef9bec1/FLAG04bd88ae3 [2019-10-22 09:00:55,618 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/33d0f07ff/6e4f256800e6489487ae377c9ef9bec1 [2019-10-22 09:00:55,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:55,622 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:55,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:55,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:55,627 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:55,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39253b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55, skipping insertion in model container [2019-10-22 09:00:55,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,637 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:00:55,657 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:00:55,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:55,884 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:00:55,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:00:55,936 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:00:55,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55 WrapperNode [2019-10-22 09:00:55,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:55,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:55,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:00:55,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:00:55,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:55,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:00:55,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:00:55,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:00:55,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:00:56,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... [2019-10-22 09:00:56,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:00:56,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:00:56,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:00:56,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:00:56,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 [2019-10-22 09:00:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:00:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:00:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 09:00:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 09:00:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:00:56,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:00:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:00:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 09:00:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:00:56,515 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:00:56,515 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-10-22 09:00:56,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:56 BoogieIcfgContainer [2019-10-22 09:00:56,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:00:56,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:00:56,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:00:56,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:00:56,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:55" (1/3) ... [2019-10-22 09:00:56,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c616e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:56, skipping insertion in model container [2019-10-22 09:00:56,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:55" (2/3) ... [2019-10-22 09:00:56,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c616e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:00:56, skipping insertion in model container [2019-10-22 09:00:56,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:56" (3/3) ... [2019-10-22 09:00:56,523 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-10-22 09:00:56,529 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:00:56,537 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:00:56,549 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:00:56,566 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:00:56,566 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:00:56,566 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:00:56,566 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:00:56,567 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:00:56,567 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:00:56,567 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:00:56,567 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:00:56,578 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-22 09:00:56,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:00:56,584 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:56,584 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:56,586 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:56,592 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-10-22 09:00:56,599 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:56,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460024570] [2019-10-22 09:00:56,600 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:56,600 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:56,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:00:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:00:56,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460024570] [2019-10-22 09:00:56,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:00:56,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:00:56,710 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478218992] [2019-10-22 09:00:56,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:00:56,714 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:00:56,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:00:56,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:00:56,728 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-22 09:00:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:00:56,748 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-10-22 09:00:56,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:00:56,749 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:00:56,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:00:56,765 INFO L225 Difference]: With dead ends: 82 [2019-10-22 09:00:56,765 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:00:56,768 INFO L600 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 [2019-10-22 09:00:56,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:00:56,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:00:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:00:56,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-10-22 09:00:56,805 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-10-22 09:00:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:00:56,806 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-10-22 09:00:56,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:00:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-10-22 09:00:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:00:56,806 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:00:56,806 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:00:56,807 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:00:56,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:00:56,807 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-10-22 09:00:56,807 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:00:56,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893527519] [2019-10-22 09:00:56,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:56,808 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:00:56,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:00:56,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:00:56,977 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:00:56,980 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:00:57,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:00:57 BoogieIcfgContainer [2019-10-22 09:00:57,011 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:00:57,011 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:00:57,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:00:57,012 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:00:57,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:00:56" (3/4) ... [2019-10-22 09:00:57,016 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:00:57,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:00:57,019 INFO L168 Benchmark]: Toolchain (without parser) took 1396.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:57,019 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:00:57,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:57,020 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.59 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:57,021 INFO L168 Benchmark]: Boogie Preprocessor took 52.68 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:57,021 INFO L168 Benchmark]: RCFGBuilder took 464.28 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:57,022 INFO L168 Benchmark]: TraceAbstraction took 494.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:00:57,023 INFO L168 Benchmark]: Witness Printer took 5.14 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. [2019-10-22 09:00:57,026 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.59 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.68 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 464.28 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 494.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={1:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = 0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={1:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={1:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={1:0}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={1:0}] [L122] COND TRUE !isnan_float(res) [L123] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:00:59,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:00:59,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:00:59,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:00:59,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:00:59,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:00:59,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:00:59,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:00:59,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:00:59,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:00:59,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:00:59,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:00:59,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:00:59,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:00:59,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:00:59,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:00:59,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:00:59,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:00:59,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:00:59,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:00:59,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:00:59,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:00:59,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:00:59,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:00:59,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:00:59,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:00:59,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:00:59,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:00:59,114 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:00:59,115 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:00:59,115 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:00:59,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:00:59,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:00:59,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:00:59,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:00:59,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:00:59,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:00:59,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:00:59,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:00:59,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:00:59,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:00:59,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:00:59,133 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:00:59,133 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:00:59,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:00:59,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:00:59,135 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:00:59,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:00:59,135 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:00:59,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:00:59,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:00:59,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:00:59,136 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:00:59,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:00:59,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:00:59,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:00:59,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:00:59,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:00:59,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:00:59,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:00:59,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:00:59,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:00:59,138 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:00:59,138 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:00:59,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:00:59,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:00:59,139 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/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 -> 7d19ae2d93dd4f9ccec1d28558a563787c68b3eb [2019-10-22 09:00:59,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:00:59,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:00:59,180 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:00:59,182 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:00:59,182 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:00:59,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-10-22 09:00:59,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/58def76a5/16be79f991d64f85b2d4e38c7e6fa038/FLAGa4d9af3a0 [2019-10-22 09:00:59,584 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:00:59,585 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2019-10-22 09:00:59,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/58def76a5/16be79f991d64f85b2d4e38c7e6fa038/FLAGa4d9af3a0 [2019-10-22 09:00:59,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/data/58def76a5/16be79f991d64f85b2d4e38c7e6fa038 [2019-10-22 09:00:59,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:00:59,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:00:59,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:00:59,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:00:59,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:00:59,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:59" (1/1) ... [2019-10-22 09:00:59,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256b2940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:00:59, skipping insertion in model container [2019-10-22 09:00:59,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:00:59" (1/1) ... [2019-10-22 09:00:59,986 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:00,004 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:00,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:00,205 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:00,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:00,330 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:00,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00 WrapperNode [2019-10-22 09:01:00,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:00,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:00,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:00,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:00,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:00,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:00,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:00,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:00,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... [2019-10-22 09:01:00,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:00,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:00,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:00,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:00,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 [2019-10-22 09:01:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-10-22 09:01:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 09:01:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:01:00,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:00,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 09:01:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:01:00,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:01,416 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:01,416 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-10-22 09:01:01,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:01 BoogieIcfgContainer [2019-10-22 09:01:01,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:01,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:01,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:01,420 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:01,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:00:59" (1/3) ... [2019-10-22 09:01:01,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b843f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:01, skipping insertion in model container [2019-10-22 09:01:01,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:00" (2/3) ... [2019-10-22 09:01:01,422 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b843f43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:01, skipping insertion in model container [2019-10-22 09:01:01,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:01" (3/3) ... [2019-10-22 09:01:01,423 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2019-10-22 09:01:01,430 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:01,436 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:01:01,443 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:01:01,461 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:01,461 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:01,461 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:01,461 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:01,461 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:01,462 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:01,462 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:01,462 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:01,482 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-10-22 09:01:01,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 09:01:01,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:01,491 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:01,493 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:01,499 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-10-22 09:01:01,508 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:01,510 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584549698] [2019-10-22 09:01:01,511 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 [2019-10-22 09:01:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:01,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 09:01:01,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:01,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:01,829 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:01,833 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584549698] [2019-10-22 09:01:01,833 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:01,833 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:01:01,834 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177279140] [2019-10-22 09:01:01,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:01,838 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:01,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:01,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:01,853 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-10-22 09:01:01,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:01,873 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-10-22 09:01:01,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:01,874 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 09:01:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:01,884 INFO L225 Difference]: With dead ends: 82 [2019-10-22 09:01:01,884 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:01:01,887 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:01:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:01:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:01:01,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-10-22 09:01:01,920 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-10-22 09:01:01,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:01,920 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-10-22 09:01:01,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-10-22 09:01:01,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 09:01:01,922 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:01,922 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:02,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:01:02,135 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:02,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:02,135 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-10-22 09:01:02,136 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:02,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760203253] [2019-10-22 09:01:02,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 [2019-10-22 09:01:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:02,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-22 09:01:02,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:03,722 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-10-22 09:01:03,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 09:01:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:05,400 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:08,938 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-10-22 09:01:09,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:09,060 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760203253] [2019-10-22 09:01:09,060 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:09,061 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-10-22 09:01:09,061 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025136753] [2019-10-22 09:01:09,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-22 09:01:09,063 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:09,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-22 09:01:09,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=54, Unknown=1, NotChecked=14, Total=90 [2019-10-22 09:01:09,064 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 10 states. [2019-10-22 09:01:13,459 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 13 DAG size of output: 11 [2019-10-22 09:01:17,906 WARN L191 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2019-10-22 09:01:20,045 WARN L191 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2019-10-22 09:01:20,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:20,078 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-10-22 09:01:20,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:20,079 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-10-22 09:01:20,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:20,079 INFO L225 Difference]: With dead ends: 44 [2019-10-22 09:01:20,079 INFO L226 Difference]: Without dead ends: 39 [2019-10-22 09:01:20,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=45, Invalid=90, Unknown=1, NotChecked=20, Total=156 [2019-10-22 09:01:20,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-10-22 09:01:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-10-22 09:01:20,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-10-22 09:01:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-10-22 09:01:20,085 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-10-22 09:01:20,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:20,086 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-10-22 09:01:20,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-22 09:01:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-10-22 09:01:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 09:01:20,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:20,087 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:20,287 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:01:20,288 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:20,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:20,288 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-10-22 09:01:20,288 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:20,289 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987326707] [2019-10-22 09:01:20,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/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 [2019-10-22 09:01:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:20,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:01:20,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:20,406 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:20,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:20,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987326707] [2019-10-22 09:01:20,460 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:20,460 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 6 [2019-10-22 09:01:20,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674506882] [2019-10-22 09:01:20,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:20,461 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:20,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:20,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:20,462 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 6 states. [2019-10-22 09:01:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:20,504 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-10-22 09:01:20,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:20,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2019-10-22 09:01:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:20,507 INFO L225 Difference]: With dead ends: 39 [2019-10-22 09:01:20,507 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:01:20,507 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:20,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:01:20,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:01:20,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:01:20,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:01:20,508 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-10-22 09:01:20,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:20,509 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:20,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:20,509 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:01:20,720 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:01:20,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:01:21,839 WARN L191 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 14 [2019-10-22 09:01:22,541 WARN L191 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-10-22 09:01:22,543 INFO L443 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:01:22,543 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-10-22 09:01:22,544 INFO L446 ceAbstractionStarter]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-10-22 09:01:22,544 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:01:22,544 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:01:22,544 INFO L443 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-10-22 09:01:22,544 INFO L443 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-10-22 09:01:22,544 INFO L439 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) [2019-10-22 09:01:22,544 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-10-22 09:01:22,544 INFO L443 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:01:22,545 INFO L439 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-10-22 09:01:22,545 INFO L443 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-10-22 09:01:22,545 INFO L443 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-10-22 09:01:22,545 INFO L439 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-10-22 09:01:22,545 INFO L443 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-10-22 09:01:22,545 INFO L439 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-10-22 09:01:22,545 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-10-22 09:01:22,545 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-10-22 09:01:22,545 INFO L443 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-10-22 09:01:22,546 INFO L443 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-10-22 09:01:22,547 INFO L439 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-10-22 09:01:22,547 INFO L443 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:01:22,547 INFO L443 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-10-22 09:01:22,548 INFO L439 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-10-22 09:01:22,548 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:01:22,548 INFO L443 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-10-22 09:01:22,548 INFO L443 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-10-22 09:01:22,548 INFO L443 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:01:22,548 INFO L443 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-10-22 09:01:22,548 INFO L439 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~y (_ +zero 8 24)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (_ +zero 8 24)))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2019-10-22 09:01:22,548 INFO L443 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-10-22 09:01:22,549 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-10-22 09:01:22,549 INFO L439 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-10-22 09:01:22,549 INFO L443 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-10-22 09:01:22,549 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-10-22 09:01:22,549 INFO L443 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-10-22 09:01:22,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,566 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:22 BoogieIcfgContainer [2019-10-22 09:01:22,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:22,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:22,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:22,572 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:22,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:01" (3/4) ... [2019-10-22 09:01:22,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:01:22,586 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 09:01:22,587 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 09:01:22,623 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f1bac159-1b8b-4305-83ac-57b0c07b13c8/bin/uautomizer/witness.graphml [2019-10-22 09:01:22,623 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:22,625 INFO L168 Benchmark]: Toolchain (without parser) took 22654.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.3 MB in the beginning and 996.7 MB in the end (delta: -44.3 MB). Peak memory consumption was 105.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,625 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:22,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,626 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.36 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. [2019-10-22 09:01:22,627 INFO L168 Benchmark]: Boogie Preprocessor took 37.72 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. [2019-10-22 09:01:22,627 INFO L168 Benchmark]: RCFGBuilder took 1002.60 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,628 INFO L168 Benchmark]: TraceAbstraction took 21153.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.7 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:22,628 INFO L168 Benchmark]: Witness Printer took 51.39 ms. Allocated memory is still 1.2 GB. Free memory is still 996.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:22,632 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 358.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -186.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.36 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 37.72 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 1002.60 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: 38.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21153.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.7 MB in the end (delta: 103.8 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. * Witness Printer took 51.39 ms. Allocated memory is still 1.2 GB. Free memory is still 996.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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_fmod_float_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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_fmod_float_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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_fmod_float_~x,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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,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_fmod_float_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-10-22 09:01:22,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,647 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: (y == ~Pluszero~LONGDOUBLE() && 1bv32 == \result) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: y == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 17]: Loop Invariant [2019-10-22 09:01:22,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2019-10-22 09:01:22,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:22,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] Derived loop invariant: y == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE()), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~Pluszero~LONGDOUBLE())) == \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 21.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, HoareTripleCheckerStatistics: 112 SDtfs, 56 SDslu, 198 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 16.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 47 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 10 QuantifiedInterpolants, 4279 SizeOfPredicates, 15 NumberOfNonLiveVariables, 148 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...