./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/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 68aa61f206da468fa7dcfce700dfa7d384c1ee8e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 09:42:04,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:42:04,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:42:04,627 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:42:04,628 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:42:04,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:42:04,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:42:04,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:42:04,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:42:04,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:42:04,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:42:04,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:42:04,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:42:04,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:42:04,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:42:04,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:42:04,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:42:04,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:42:04,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:42:04,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:42:04,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:42:04,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:42:04,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:42:04,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:42:04,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:42:04,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:42:04,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:42:04,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:42:04,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:42:04,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:42:04,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:42:04,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:42:04,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:42:04,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:42:04,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:42:04,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:42:04,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:42:04,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:42:04,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:42:04,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:42:04,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:42:04,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:42:04,724 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:42:04,724 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:42:04,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:42:04,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:42:04,726 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:42:04,727 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:42:04,727 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:42:04,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:42:04,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:42:04,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:42:04,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:42:04,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:42:04,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:42:04,728 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:42:04,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:42:04,729 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:42:04,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:42:04,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:42:04,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:42:04,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:42:04,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:42:04,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:42:04,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:42:04,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:42:04,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:42:04,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:42:04,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:42:04,732 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:42:04,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2019-11-20 09:42:04,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:42:04,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:42:04,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:42:04,921 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:42:04,925 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:42:04,927 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-20 09:42:04,984 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/159a13a0a/52191be01cbe4c9f93954b671fcc5cee/FLAG875cf07a2 [2019-11-20 09:42:05,378 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:42:05,379 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-20 09:42:05,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/159a13a0a/52191be01cbe4c9f93954b671fcc5cee/FLAG875cf07a2 [2019-11-20 09:42:05,816 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/159a13a0a/52191be01cbe4c9f93954b671fcc5cee [2019-11-20 09:42:05,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:42:05,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:42:05,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:42:05,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:42:05,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:42:05,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:42:05" (1/1) ... [2019-11-20 09:42:05,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac882b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:05, skipping insertion in model container [2019-11-20 09:42:05,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:42:05" (1/1) ... [2019-11-20 09:42:05,833 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:42:05,859 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:42:06,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:42:06,268 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:42:06,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:42:06,343 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:42:06,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06 WrapperNode [2019-11-20 09:42:06,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:42:06,345 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:42:06,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:42:06,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:42:06,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:42:06,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:42:06,441 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:42:06,441 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:42:06,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... [2019-11-20 09:42:06,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:42:06,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:42:06,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:42:06,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:42:06,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:42:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:42:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 09:42:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 09:42:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 09:42:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:42:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:42:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 09:42:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:42:07,067 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:42:07,067 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 09:42:07,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:07 BoogieIcfgContainer [2019-11-20 09:42:07,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:42:07,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:42:07,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:42:07,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:42:07,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:42:05" (1/3) ... [2019-11-20 09:42:07,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646a6d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:42:07, skipping insertion in model container [2019-11-20 09:42:07,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:06" (2/3) ... [2019-11-20 09:42:07,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646a6d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:42:07, skipping insertion in model container [2019-11-20 09:42:07,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:07" (3/3) ... [2019-11-20 09:42:07,077 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2019-11-20 09:42:07,087 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:42:07,094 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:42:07,106 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:42:07,130 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:42:07,130 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:42:07,130 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:42:07,130 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:42:07,130 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:42:07,131 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:42:07,131 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:42:07,131 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:42:07,146 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 09:42:07,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:42:07,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:07,153 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:07,153 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:07,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:07,159 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2019-11-20 09:42:07,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:42:07,166 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097007329] [2019-11-20 09:42:07,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:42:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:07,292 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097007329] [2019-11-20 09:42:07,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:42:07,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:42:07,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609620902] [2019-11-20 09:42:07,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:42:07,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:42:07,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:42:07,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:42:07,312 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 09:42:07,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:42:07,329 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2019-11-20 09:42:07,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:42:07,330 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 09:42:07,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:42:07,338 INFO L225 Difference]: With dead ends: 71 [2019-11-20 09:42:07,339 INFO L226 Difference]: Without dead ends: 33 [2019-11-20 09:42:07,342 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:42:07,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-20 09:42:07,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-20 09:42:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 09:42:07,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-11-20 09:42:07,376 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2019-11-20 09:42:07,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:42:07,376 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-20 09:42:07,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:42:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-20 09:42:07,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 09:42:07,377 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:07,377 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:07,378 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:07,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:07,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2019-11-20 09:42:07,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:42:07,379 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998966217] [2019-11-20 09:42:07,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:42:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:07,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998966217] [2019-11-20 09:42:07,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:42:07,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:42:07,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417833309] [2019-11-20 09:42:07,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:42:07,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:42:07,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:42:07,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:42:07,440 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2019-11-20 09:42:07,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:42:07,479 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2019-11-20 09:42:07,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:42:07,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-20 09:42:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:42:07,482 INFO L225 Difference]: With dead ends: 59 [2019-11-20 09:42:07,483 INFO L226 Difference]: Without dead ends: 33 [2019-11-20 09:42:07,484 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:42:07,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-20 09:42:07,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-20 09:42:07,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 09:42:07,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-20 09:42:07,493 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2019-11-20 09:42:07,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:42:07,494 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-20 09:42:07,494 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:42:07,494 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-20 09:42:07,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 09:42:07,494 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:07,495 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:07,495 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:07,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:07,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2019-11-20 09:42:07,495 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:42:07,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585483731] [2019-11-20 09:42:07,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:42:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:07,628 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:42:07,628 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 09:42:07,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:42:07 BoogieIcfgContainer [2019-11-20 09:42:07,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:42:07,670 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:42:07,670 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:42:07,670 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:42:07,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:07" (3/4) ... [2019-11-20 09:42:07,674 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 09:42:07,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:42:07,677 INFO L168 Benchmark]: Toolchain (without parser) took 1856.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -132.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:07,677 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:07,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:07,679 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.22 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:07,679 INFO L168 Benchmark]: Boogie Preprocessor took 84.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:07,680 INFO L168 Benchmark]: RCFGBuilder took 543.84 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:07,680 INFO L168 Benchmark]: TraceAbstraction took 599.27 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:07,681 INFO L168 Benchmark]: Witness Printer took 5.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:07,684 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 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 524.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.22 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 543.84 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: 29.0 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 599.27 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: 34.8 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.06 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: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of bitwiseAnd at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L132] float x = __VERIFIER_nondet_float(); [L134] EXPR x < 0 && isfinite_float(x) [L115] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L117] ieee_float_shape_type gf_u; [L118] gf_u.value = (x) [L119] EXPR gf_u.word [L119] (ix) = gf_u.word [L121] ix &= 0x7fffffff [L122] return (((ix) < 0x7f800000L)); VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L134] COND TRUE (x < 0 && isfinite_float(x)) [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] float res = __ieee754_logf(x); [L111] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L139] COND TRUE !isnan_float(res) [L140] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 0 SDslu, 39 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 0.1.24-678e011 [2019-11-20 09:42:09,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:42:09,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:42:09,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:42:09,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:42:09,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:42:09,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:42:09,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:42:09,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:42:09,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:42:09,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:42:09,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:42:09,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:42:09,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:42:09,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:42:09,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:42:09,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:42:09,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:42:09,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:42:09,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:42:09,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:42:09,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:42:09,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:42:09,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:42:09,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:42:09,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:42:09,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:42:09,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:42:09,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:42:09,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:42:09,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:42:09,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:42:09,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:42:09,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:42:09,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:42:09,812 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:42:09,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:42:09,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:42:09,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:42:09,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:42:09,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:42:09,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 09:42:09,849 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:42:09,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:42:09,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:42:09,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:42:09,853 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:42:09,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:42:09,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:42:09,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:42:09,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:42:09,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:42:09,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:42:09,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:42:09,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 09:42:09,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 09:42:09,855 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:42:09,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:42:09,856 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:42:09,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:42:09,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:42:09,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:42:09,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:42:09,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:42:09,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:42:09,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:42:09,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:42:09,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:42:09,858 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 09:42:09,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 09:42:09,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:42:09,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 09:42:09,859 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/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 -> 68aa61f206da468fa7dcfce700dfa7d384c1ee8e [2019-11-20 09:42:10,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:42:10,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:42:10,228 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:42:10,230 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:42:10,231 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:42:10,232 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-20 09:42:10,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/ee7081170/12440ccff999422db27e5eba74742fb5/FLAGc1a5b2533 [2019-11-20 09:42:10,755 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:42:10,756 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2019-11-20 09:42:10,763 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/ee7081170/12440ccff999422db27e5eba74742fb5/FLAGc1a5b2533 [2019-11-20 09:42:11,109 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/data/ee7081170/12440ccff999422db27e5eba74742fb5 [2019-11-20 09:42:11,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:42:11,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:42:11,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:42:11,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:42:11,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:42:11,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e7c637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11, skipping insertion in model container [2019-11-20 09:42:11,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,132 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:42:11,154 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:42:11,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:42:11,445 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:42:11,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:42:11,600 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:42:11,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11 WrapperNode [2019-11-20 09:42:11,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:42:11,602 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:42:11,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:42:11,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:42:11,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:42:11,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:42:11,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:42:11,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:42:11,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... [2019-11-20 09:42:11,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:42:11,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:42:11,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:42:11,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:42:11,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:42:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:42:11,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 09:42:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 09:42:11,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:42:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:42:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 09:42:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 09:42:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:42:24,426 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:42:24,426 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 09:42:24,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:24 BoogieIcfgContainer [2019-11-20 09:42:24,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:42:24,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:42:24,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:42:24,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:42:24,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:42:11" (1/3) ... [2019-11-20 09:42:24,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704d8ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:42:24, skipping insertion in model container [2019-11-20 09:42:24,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:11" (2/3) ... [2019-11-20 09:42:24,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704d8ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:42:24, skipping insertion in model container [2019-11-20 09:42:24,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:24" (3/3) ... [2019-11-20 09:42:24,439 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2019-11-20 09:42:24,449 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:42:24,470 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:42:24,482 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:42:24,506 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:42:24,506 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:42:24,506 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:42:24,506 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:42:24,507 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:42:24,507 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:42:24,507 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:42:24,507 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:42:24,521 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 09:42:24,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:42:24,526 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:24,527 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:24,527 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:24,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:24,532 INFO L82 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2019-11-20 09:42:24,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:42:24,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [901015586] [2019-11-20 09:42:24,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-20 09:42:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:24,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 09:42:24,867 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:42:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:24,880 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:42:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:24,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [901015586] [2019-11-20 09:42:24,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:42:24,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 09:42:24,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915116627] [2019-11-20 09:42:24,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:42:24,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:42:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:42:24,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:42:24,908 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 09:42:24,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:42:24,927 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2019-11-20 09:42:24,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:42:24,928 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-20 09:42:24,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:42:24,940 INFO L225 Difference]: With dead ends: 71 [2019-11-20 09:42:24,940 INFO L226 Difference]: Without dead ends: 33 [2019-11-20 09:42:24,943 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:42:24,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-20 09:42:24,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-20 09:42:24,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 09:42:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2019-11-20 09:42:24,977 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2019-11-20 09:42:24,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:42:24,977 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2019-11-20 09:42:24,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:42:24,978 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2019-11-20 09:42:24,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-20 09:42:24,978 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:24,979 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:25,179 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 09:42:25,180 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2019-11-20 09:42:25,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:42:25,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397145242] [2019-11-20 09:42:25,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-20 09:42:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:25,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 09:42:25,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:42:25,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:25,556 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:42:25,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:25,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397145242] [2019-11-20 09:42:25,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:42:25,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-20 09:42:25,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617567331] [2019-11-20 09:42:25,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:42:25,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:42:25,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:42:25,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:42:25,562 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand 3 states. [2019-11-20 09:42:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:42:25,596 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2019-11-20 09:42:25,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:42:25,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-11-20 09:42:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:42:25,598 INFO L225 Difference]: With dead ends: 59 [2019-11-20 09:42:25,598 INFO L226 Difference]: Without dead ends: 33 [2019-11-20 09:42:25,599 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:42:25,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-20 09:42:25,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-11-20 09:42:25,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-11-20 09:42:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-11-20 09:42:25,609 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2019-11-20 09:42:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:42:25,609 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-11-20 09:42:25,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:42:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-11-20 09:42:25,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 09:42:25,610 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:25,610 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:25,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 09:42:25,833 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:25,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2019-11-20 09:42:25,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:42:25,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834655813] [2019-11-20 09:42:25,837 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-20 09:42:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:26,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 09:42:26,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:42:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:26,250 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:42:26,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:26,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834655813] [2019-11-20 09:42:26,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:42:26,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 09:42:26,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781608844] [2019-11-20 09:42:26,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 09:42:26,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:42:26,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 09:42:26,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-20 09:42:26,427 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 10 states. [2019-11-20 09:42:26,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:42:26,910 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2019-11-20 09:42:26,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 09:42:26,969 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-11-20 09:42:26,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:42:26,970 INFO L225 Difference]: With dead ends: 38 [2019-11-20 09:42:26,970 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 09:42:26,971 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:42:26,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 09:42:26,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 09:42:26,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 09:42:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-20 09:42:26,975 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-20 09:42:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:42:26,976 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-20 09:42:26,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 09:42:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-20 09:42:26,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 09:42:26,977 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:42:26,977 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:42:27,178 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 09:42:27,179 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:42:27,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:27,179 INFO L82 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times [2019-11-20 09:42:27,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:42:27,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157938213] [2019-11-20 09:42:27,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 09:42:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:27,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 09:42:27,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:42:27,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 09:42:27,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:27,781 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:42:29,841 WARN L191 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-20 09:42:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:29,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157938213] [2019-11-20 09:42:29,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:42:29,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-20 09:42:29,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958079533] [2019-11-20 09:42:29,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 09:42:29,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:42:29,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 09:42:29,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-20 09:42:29,857 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2019-11-20 09:42:30,835 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-11-20 09:42:30,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:42:30,836 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-20 09:42:30,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 09:42:30,837 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-20 09:42:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:42:30,837 INFO L225 Difference]: With dead ends: 18 [2019-11-20 09:42:30,838 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 09:42:30,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:42:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 09:42:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 09:42:30,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 09:42:30,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 09:42:30,839 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-20 09:42:30,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:42:30,840 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:42:30,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 09:42:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:42:30,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:42:31,041 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 09:42:31,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 09:42:31,246 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-11-20 09:42:31,247 INFO L440 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-11-20 09:42:31,247 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-11-20 09:42:31,247 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-11-20 09:42:31,247 INFO L440 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt ULTIMATE.start___ieee754_logf_~x .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) (fp.lt ULTIMATE.start_main_~x~0 .cse0))) [2019-11-20 09:42:31,248 INFO L444 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-11-20 09:42:31,248 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 09:42:31,248 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 09:42:31,248 INFO L444 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-11-20 09:42:31,248 INFO L440 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-11-20 09:42:31,248 INFO L444 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-11-20 09:42:31,249 INFO L440 ceAbstractionStarter]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt ULTIMATE.start___ieee754_logf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) (not (fp.eq |ULTIMATE.start___ieee754_logf_#res| |ULTIMATE.start___ieee754_logf_#res|)) (fp.lt ULTIMATE.start_main_~x~0 .cse0) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) .cse0))) [2019-11-20 09:42:31,249 INFO L444 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-11-20 09:42:31,249 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-20 09:42:31,249 INFO L444 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-11-20 09:42:31,249 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-20 09:42:31,249 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-11-20 09:42:31,250 INFO L447 ceAbstractionStarter]: At program point L145(lines 125 146) the Hoare annotation is: true [2019-11-20 09:42:31,250 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-20 09:42:31,250 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-11-20 09:42:31,250 INFO L440 ceAbstractionStarter]: At program point L122(lines 114 123) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short12| (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) [2019-11-20 09:42:31,251 INFO L444 ceAbstractionStarter]: For program point L139(lines 139 142) no Hoare annotation was computed. [2019-11-20 09:42:31,251 INFO L440 ceAbstractionStarter]: At program point L106(lines 32 108) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) (and (fp.lt ULTIMATE.start___ieee754_logf_~x .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) (not (fp.eq |ULTIMATE.start___ieee754_logf_#res| |ULTIMATE.start___ieee754_logf_#res|)) (fp.lt ULTIMATE.start_main_~x~0 .cse0) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 30 23) ULTIMATE.start___ieee754_logf_~ix~1) ((_ extract 22 0) ULTIMATE.start___ieee754_logf_~ix~1)) .cse0))) [2019-11-20 09:42:31,251 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 09:42:31,252 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2019-11-20 09:42:31,252 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-11-20 09:42:31,252 INFO L444 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-11-20 09:42:31,252 INFO L444 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2019-11-20 09:42:31,253 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 09:42:31,253 INFO L444 ceAbstractionStarter]: For program point L116-1(lines 116 120) no Hoare annotation was computed. [2019-11-20 09:42:31,253 INFO L440 ceAbstractionStarter]: At program point L116-2(lines 116 120) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0) |ULTIMATE.start_main_#t~short12| (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ bv0 32)))) [2019-11-20 09:42:31,253 INFO L444 ceAbstractionStarter]: For program point L116-3(lines 116 120) no Hoare annotation was computed. [2019-11-20 09:42:31,254 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-11-20 09:42:31,254 INFO L444 ceAbstractionStarter]: For program point L134(line 134) no Hoare annotation was computed. [2019-11-20 09:42:31,254 INFO L444 ceAbstractionStarter]: For program point L134-2(lines 134 143) no Hoare annotation was computed. [2019-11-20 09:42:31,254 INFO L444 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-11-20 09:42:31,255 INFO L444 ceAbstractionStarter]: For program point L134-4(lines 134 143) no Hoare annotation was computed. [2019-11-20 09:42:31,271 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,272 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,273 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,287 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,288 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,288 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,290 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,290 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,290 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,291 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,291 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:42:31 BoogieIcfgContainer [2019-11-20 09:42:31,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:42:31,300 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:42:31,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:42:31,301 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:42:31,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:24" (3/4) ... [2019-11-20 09:42:31,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:42:31,318 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-20 09:42:31,319 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-20 09:42:31,319 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 09:42:31,349 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) [2019-11-20 09:42:31,350 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) [2019-11-20 09:42:31,411 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_81e82d33-8c75-499c-8be0-32209e28fa1c/bin/uautomizer/witness.graphml [2019-11-20 09:42:31,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:42:31,413 INFO L168 Benchmark]: Toolchain (without parser) took 20297.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 957.8 MB in the beginning and 907.0 MB in the end (delta: 50.8 MB). Peak memory consumption was 155.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:31,413 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:31,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -136.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:31,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:31,415 INFO L168 Benchmark]: Boogie Preprocessor took 51.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:31,415 INFO L168 Benchmark]: RCFGBuilder took 12708.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:31,416 INFO L168 Benchmark]: TraceAbstraction took 6870.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 913.7 MB in the end (delta: 140.3 MB). Peak memory consumption was 140.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:31,416 INFO L168 Benchmark]: Witness Printer took 111.83 ms. Allocated memory is still 1.1 GB. Free memory was 913.7 MB in the beginning and 907.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:31,419 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 484.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -136.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 65.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.55 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12708.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6870.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 913.7 MB in the end (delta: 140.3 MB). Peak memory consumption was 140.3 MB. Max. memory is 11.5 GB. * Witness Printer took 111.83 ms. Allocated memory is still 1.1 GB. Free memory was 913.7 MB in the beginning and 907.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 111]: Loop Invariant [2019-11-20 09:42:31,425 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,428 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 114]: Loop Invariant [2019-11-20 09:42:31,428 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log && aux-x < 0 && isfinite_float(x)-aux) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 32]: Loop Invariant [2019-11-20 09:42:31,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && !~fp.eq~FLOAT(\result, \result)) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32))) && ~fp.lt~FLOAT(~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant [2019-11-20 09:42:31,433 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,433 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,433 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log && aux-x < 0 && isfinite_float(x)-aux) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2019-11-20 09:42:31,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:42:31,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 0bv32)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 117 SDtfs, 38 SDslu, 118 SDs, 0 SdLazy, 31 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 108 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 20 QuantifiedInterpolants, 8755 SizeOfPredicates, 14 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...